File: std_examples.html

package info (click to toggle)
rocketcea 1.1.18%2Bdfsg-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 40,068 kB
  • sloc: python: 8,231; fortran: 5,605; pascal: 128; makefile: 6; sh: 5
file content (469 lines) | stat: -rw-r--r-- 59,652 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469


<!doctype html>

<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <meta charset="utf-8" />
    <title>Standard Examples &#8212; RocketCEA v1.1.18 documentation</title>
    <link rel="stylesheet" href="_static/bizstyle.css" type="text/css" />
    <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
    
    <script type="text/javascript" id="documentation_options" data-url_root="./" src="_static/documentation_options.js"></script>
    <script type="text/javascript" src="_static/jquery.js"></script>
    <script type="text/javascript" src="_static/underscore.js"></script>
    <script type="text/javascript" src="_static/doctools.js"></script>
    <script type="text/javascript" src="_static/language_data.js"></script>
    <script type="text/javascript" src="_static/bizstyle.js"></script>
    <link rel="index" title="Index" href="genindex.html" />
    <link rel="search" title="Search" href="search.html" />
    <link rel="copyright" title="Copyright" href="copyright.html" />
    <link rel="next" title="Traditional Example" href="traditional_example.html" />
    <link rel="prev" title="Install gfortran" href="installgfortran.html" />
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <!--[if lt IE 9]>
    <script type="text/javascript" src="_static/css3-mediaqueries.js"></script>
    <![endif]-->
  </head><body>
    <div class="related" role="navigation" aria-label="related navigation">
      <h3>Navigation</h3>
      <ul>
        <li class="right" style="margin-right: 10px">
          <a href="genindex.html" title="General Index"
             accesskey="I">index</a></li>
        <li class="right" >
          <a href="py-modindex.html" title="Python Module Index"
             >modules</a> |</li>
        <li class="right" >
          <a href="traditional_example.html" title="Traditional Example"
             accesskey="N">next</a> |</li>
        <li class="right" >
          <a href="installgfortran.html" title="Install gfortran"
             accesskey="P">previous</a> |</li>
        <li class="nav-item nav-item-0"><a href="index.html">RocketCEA v1.1.18 documentation</a> &#187;</li> 
      </ul>
    </div>
      <div class="sphinxsidebar" role="navigation" aria-label="main navigation">
        <div class="sphinxsidebarwrapper">
            <p class="logo"><a href="index.html">
              <img class="logo" src="_static/generic_logo.svg" alt="Logo"/>
            </a></p>
  <h3><a href="index.html">Table of Contents</a></h3>
  <ul class="current">
<li class="toctree-l1"><a class="reference internal" href="quickstart.html">QuickStart</a></li>
<li class="toctree-l1"><a class="reference internal" href="installgfortran.html">Install gfortran</a></li>
<li class="toctree-l1 current"><a class="current reference internal" href="#">Standard Examples</a><ul>
<li class="toctree-l2"><a class="reference internal" href="#lox-lh2-performance">LOX/LH2 Performance</a></li>
<li class="toctree-l2"><a class="reference internal" href="#transport-properties">Transport Properties</a></li>
<li class="toctree-l2"><a class="reference internal" href="#frozen-performance">Frozen Performance</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="traditional_example.html">Traditional Example</a></li>
<li class="toctree-l1"><a class="reference internal" href="simple_examples.html">Simple Examples</a></li>
<li class="toctree-l1"><a class="reference internal" href="finite_area_comb.html">Finite Area Combustor</a></li>
<li class="toctree-l1"><a class="reference internal" href="comb_species.html">Species Mole Fractions</a></li>
<li class="toctree-l1"><a class="reference internal" href="engine_mr.html">Engine Mixture Ratio</a></li>
<li class="toctree-l1"><a class="reference internal" href="propellant_select.html">Propellant Selection</a></li>
<li class="toctree-l1"><a class="reference internal" href="propellants.html">Propellants</a></li>
<li class="toctree-l1"><a class="reference internal" href="new_propellants.html">New Propellants</a></li>
<li class="toctree-l1"><a class="reference internal" href="plot_examples.html">Plot Examples</a></li>
<li class="toctree-l1"><a class="reference internal" href="ambient_isp.html">Ambient Isp</a></li>
<li class="toctree-l1"><a class="reference internal" href="hydrazine_mono.html">Hydrazine Monopropellant</a></li>
<li class="toctree-l1"><a class="reference internal" href="temperature_adjust.html">Temperature Adjust</a></li>
<li class="toctree-l1"><a class="reference internal" href="cea_tdk_rpa.html">CEA vs TDK vs RPA</a></li>
<li class="toctree-l1"><a class="reference internal" href="parasol_example.html">Parasol Example</a></li>
<li class="toctree-l1"><a class="reference internal" href="functions.html">RocketCEA Functions</a></li>
<li class="toctree-l1"><a class="reference internal" href="copyright.html">Copyright</a></li>
<li class="toctree-l1"><a class="reference internal" href="authors.html">Authors</a></li>
<li class="toctree-l1"><a class="reference internal" href="history.html">History</a></li>
</ul>

  <h4>Previous topic</h4>
  <p class="topless"><a href="installgfortran.html"
                        title="previous chapter">Install gfortran</a></p>
  <h4>Next topic</h4>
  <p class="topless"><a href="traditional_example.html"
                        title="next chapter">Traditional Example</a></p>
  <div role="note" aria-label="source link">
    <h3>This Page</h3>
    <ul class="this-page-menu">
      <li><a href="_sources/std_examples.rst.txt"
            rel="nofollow">Show Source</a></li>
    </ul>
   </div>
<div id="searchbox" style="display: none" role="search">
  <h3 id="searchlabel">Quick search</h3>
    <div class="searchformwrapper">
    <form class="search" action="search.html" method="get">
      <input type="text" name="q" aria-labelledby="searchlabel" />
      <input type="submit" value="Go" />
    </form>
    </div>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
        </div>
      </div>

    <div class="document">
      <div class="documentwrapper">
        <div class="bodywrapper">
          <div class="body" role="main">
            
  <div class="section" id="standard-examples">
<span id="std-examples-link"></span><h1>Standard Examples<a class="headerlink" href="#standard-examples" title="Permalink to this headline">¶</a></h1>
<p>For those with <a class="reference external" href="https://www.grc.nasa.gov/WWW/CEAWeb/ceaHome.htm">NASA CEA</a> experience,
running CEA and reviewing the printed output is standard practice.</p>
<p>The following examples show how to run a case and review the standard
<a class="reference external" href="https://www.grc.nasa.gov/WWW/CEAWeb/ceaHome.htm">CEA</a> output.</p>
<p>RocketCEA always begins with an import statement and an instance of a CEA_obj:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">rocketcea.cea_obj</span> <span class="kn">import</span> <span class="n">CEA_Obj</span>
<span class="n">ispObj</span> <span class="o">=</span> <span class="n">CEA_Obj</span><span class="p">(</span> <span class="n">oxName</span><span class="o">=</span><span class="s1">&#39;LOX&#39;</span><span class="p">,</span> <span class="n">fuelName</span><span class="o">=</span><span class="s1">&#39;LH2&#39;</span><span class="p">)</span>
</pre></div>
</div>
<p>Instead of manually assembling a run deck for CEA, the above is all that is needed to run a CEA <strong>rocket</strong> case with standard
definitions of all the most common rocket propellants.</p>
<div class="section" id="lox-lh2-performance">
<span id="example-1-link"></span><h2>LOX/LH2 Performance<a class="headerlink" href="#lox-lh2-performance" title="Permalink to this headline">¶</a></h2>
<p>The script below is typical to calculate predicted equilibrium performance at a specific
chamber pressure, mixture ratio and expansion ratio.</p>
<p>The script uses the <strong>short</strong> output option. (long-form output is default)</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>
<span class="kn">from</span> <span class="nn">rocketcea.cea_obj</span> <span class="kn">import</span> <span class="n">CEA_Obj</span>

<span class="n">ispObj</span> <span class="o">=</span> <span class="n">CEA_Obj</span><span class="p">(</span> <span class="n">oxName</span><span class="o">=</span><span class="s1">&#39;LOX&#39;</span><span class="p">,</span> <span class="n">fuelName</span><span class="o">=</span><span class="s1">&#39;LH2&#39;</span><span class="p">)</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_full_cea_output</span><span class="p">(</span> <span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">eps</span><span class="o">=</span><span class="mf">40.0</span><span class="p">,</span> <span class="n">short_output</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>

<span class="nb">print</span><span class="p">(</span> <span class="n">s</span> <span class="p">)</span>
</pre></div>
</div>
<p>Notice that RocketCEA generates the propellant cards and input parameters for the <strong>rocket equilibrium</strong> problem.
(as opposed to a <strong>shock</strong> or <strong>detonation</strong> problem)</p>
<p>The propellant temperature and enthalpy are <em>standard</em>, which usually means room temperature for storable or gas
propellants and normal boiling point for cryogenic propellants.</p>
<p>See the <a class="reference internal" href="temperature_adjust.html#temperature-adjust-link"><span class="std std-ref">Temperature Adjust</span></a> page for modifying the temperature and enthalpy of the reactants.</p>
<p>Notice also that the CEA documentation (shown below) allows for different pressure units to be used for Pc.
The default units in <strong>RocketCEA</strong> are psia, however, bar, atm and mmh are also options.</p>
<img alt="_images/full_output_p_units.jpg" src="_images/full_output_p_units.jpg" />
<p>Pc units can be specified with the input parameter <strong>pc_units</strong> as shown in the following lines:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">s</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_full_cea_output</span><span class="p">(</span> <span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">eps</span><span class="o">=</span><span class="mf">40.0</span><span class="p">,</span> <span class="n">short_output</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">pc_units</span><span class="o">=</span><span class="s1">&#39;psia&#39;</span><span class="p">)</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_full_cea_output</span><span class="p">(</span> <span class="n">Pc</span><span class="o">=</span><span class="mf">68.948</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">eps</span><span class="o">=</span><span class="mf">40.0</span><span class="p">,</span> <span class="n">short_output</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">pc_units</span><span class="o">=</span><span class="s1">&#39;bar&#39;</span><span class="p">)</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_full_cea_output</span><span class="p">(</span> <span class="n">Pc</span><span class="o">=</span><span class="mf">68.046</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">eps</span><span class="o">=</span><span class="mf">40.0</span><span class="p">,</span> <span class="n">short_output</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">pc_units</span><span class="o">=</span><span class="s1">&#39;atm&#39;</span><span class="p">)</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_full_cea_output</span><span class="p">(</span> <span class="n">Pc</span><span class="o">=</span><span class="mf">51715.</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">eps</span><span class="o">=</span><span class="mf">40.0</span><span class="p">,</span> <span class="n">short_output</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">pc_units</span><span class="o">=</span><span class="s1">&#39;mmh&#39;</span><span class="p">)</span>
</pre></div>
</div>
<p id="std-examples-mole-frac-link">The above script gives the standard output that a typical CEA run from the command prompt would give:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o">*******************************************************************************</span>

        <span class="n">NASA</span><span class="o">-</span><span class="n">GLENN</span> <span class="n">CHEMICAL</span> <span class="n">EQUILIBRIUM</span> <span class="n">PROGRAM</span> <span class="n">CEA</span><span class="p">,</span> <span class="n">OCTOBER</span> <span class="mi">18</span><span class="p">,</span> <span class="mi">2002</span>
                  <span class="n">BY</span>  <span class="n">BONNIE</span> <span class="n">MCBRIDE</span> <span class="n">AND</span> <span class="n">SANFORD</span> <span class="n">GORDON</span>
     <span class="n">REFS</span><span class="p">:</span> <span class="n">NASA</span> <span class="n">RP</span><span class="o">-</span><span class="mi">1311</span><span class="p">,</span> <span class="n">PART</span> <span class="n">I</span><span class="p">,</span> <span class="mi">1994</span> <span class="n">AND</span> <span class="n">NASA</span> <span class="n">RP</span><span class="o">-</span><span class="mi">1311</span><span class="p">,</span> <span class="n">PART</span> <span class="n">II</span><span class="p">,</span> <span class="mi">1996</span>

<span class="o">*******************************************************************************</span>



<span class="n">reac</span>
 <span class="n">fuel</span> <span class="n">H2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>  <span class="n">H</span> <span class="mi">2</span>
 <span class="n">h</span><span class="p">,</span><span class="n">cal</span><span class="o">=-</span><span class="mf">2154.0</span>      <span class="n">t</span><span class="p">(</span><span class="n">k</span><span class="p">)</span><span class="o">=</span><span class="mf">20.27</span>       <span class="n">wt</span><span class="o">%=</span><span class="mf">100.</span>
 <span class="n">oxid</span> <span class="n">O2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>  <span class="n">O</span> <span class="mi">2</span>
 <span class="n">h</span><span class="p">,</span><span class="n">cal</span><span class="o">=-</span><span class="mf">3102.</span>      <span class="n">t</span><span class="p">(</span><span class="n">k</span><span class="p">)</span><span class="o">=</span><span class="mf">90.18</span>       <span class="n">wt</span><span class="o">%=</span><span class="mf">100.</span>

<span class="n">prob</span> <span class="n">case</span><span class="o">=</span><span class="n">LOX_</span><span class="o">/</span><span class="n">_LH2</span>
 <span class="n">rocket</span> <span class="n">equilibrium</span>  <span class="n">p</span><span class="p">,</span><span class="n">psia</span><span class="o">=</span><span class="mf">1000.000000</span><span class="p">,</span> <span class="n">supar</span><span class="o">=</span><span class="mf">40.000000</span><span class="p">,</span>
 <span class="n">o</span><span class="o">/</span><span class="n">f</span><span class="o">=</span><span class="mf">6.000000</span>

<span class="n">outp</span>   <span class="n">calories</span> <span class="n">short</span>

<span class="n">end</span>





             <span class="n">THEORETICAL</span> <span class="n">ROCKET</span> <span class="n">PERFORMANCE</span> <span class="n">ASSUMING</span> <span class="n">EQUILIBRIUM</span>

          <span class="n">COMPOSITION</span> <span class="n">DURING</span> <span class="n">EXPANSION</span> <span class="n">FROM</span> <span class="n">INFINITE</span> <span class="n">AREA</span> <span class="n">COMBUSTOR</span>

<span class="n">Pinj</span> <span class="o">=</span>  <span class="mf">1000.0</span> <span class="n">PSIA</span>
<span class="n">CASE</span> <span class="o">=</span> <span class="n">LOX_</span><span class="o">/</span><span class="n">_LH2</span>

            <span class="n">REACTANT</span>                    <span class="n">WT</span> <span class="n">FRACTION</span>      <span class="n">ENERGY</span>      <span class="n">TEMP</span>
                                         <span class="p">(</span><span class="n">SEE</span> <span class="n">NOTE</span><span class="p">)</span>      <span class="n">CAL</span><span class="o">/</span><span class="n">MOL</span>       <span class="n">K</span>
<span class="n">FUEL</span>        <span class="n">H2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>                        <span class="mf">1.0000000</span>     <span class="o">-</span><span class="mf">2154.000</span>     <span class="mf">20.270</span>
<span class="n">OXIDANT</span>     <span class="n">O2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>                        <span class="mf">1.0000000</span>     <span class="o">-</span><span class="mf">3102.000</span>     <span class="mf">90.180</span>

<span class="n">O</span><span class="o">/</span><span class="n">F</span><span class="o">=</span>    <span class="mf">6.00000</span>  <span class="o">%</span><span class="n">FUEL</span><span class="o">=</span> <span class="mf">14.285714</span>  <span class="n">R</span><span class="p">,</span><span class="n">EQ</span><span class="o">.</span><span class="n">RATIO</span><span class="o">=</span> <span class="mf">1.322780</span>  <span class="n">PHI</span><span class="p">,</span><span class="n">EQ</span><span class="o">.</span><span class="n">RATIO</span><span class="o">=</span> <span class="mf">1.322780</span>

                <span class="n">CHAMBER</span>   <span class="n">THROAT</span>     <span class="n">EXIT</span>
<span class="n">Pinf</span><span class="o">/</span><span class="n">P</span>            <span class="mf">1.0000</span>   <span class="mf">1.7351</span>   <span class="mf">459.06</span>
<span class="n">P</span><span class="p">,</span> <span class="n">ATM</span>            <span class="mf">68.046</span>   <span class="mf">39.216</span>  <span class="mf">0.14823</span>
<span class="n">T</span><span class="p">,</span> <span class="n">K</span>             <span class="mf">3483.35</span>  <span class="mf">3291.03</span>  <span class="mf">1440.95</span>
<span class="n">RHO</span><span class="p">,</span> <span class="n">G</span><span class="o">/</span><span class="n">CC</span>       <span class="mf">3.2038</span><span class="o">-</span><span class="mi">3</span> <span class="mf">1.9758</span><span class="o">-</span><span class="mi">3</span> <span class="mf">1.7690</span><span class="o">-</span><span class="mi">5</span>
<span class="n">H</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="n">G</span>         <span class="o">-</span><span class="mf">235.74</span>  <span class="o">-</span><span class="mf">509.81</span> <span class="o">-</span><span class="mf">2372.54</span>
<span class="n">U</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="n">G</span>         <span class="o">-</span><span class="mf">750.09</span>  <span class="o">-</span><span class="mf">990.49</span> <span class="o">-</span><span class="mf">2575.47</span>
<span class="n">G</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="n">G</span>        <span class="o">-</span><span class="mf">15090.3</span> <span class="o">-</span><span class="mf">14544.2</span> <span class="o">-</span><span class="mf">8517.40</span>
<span class="n">S</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="p">(</span><span class="n">G</span><span class="p">)(</span><span class="n">K</span><span class="p">)</span>     <span class="mf">4.2644</span>   <span class="mf">4.2644</span>   <span class="mf">4.2644</span>

<span class="n">M</span><span class="p">,</span> <span class="p">(</span><span class="mi">1</span><span class="o">/</span><span class="n">n</span><span class="p">)</span>          <span class="mf">13.458</span>   <span class="mf">13.606</span>   <span class="mf">14.111</span>
<span class="p">(</span><span class="n">dLV</span><span class="o">/</span><span class="n">dLP</span><span class="p">)</span><span class="n">t</span>      <span class="o">-</span><span class="mf">1.02525</span> <span class="o">-</span><span class="mf">1.01954</span> <span class="o">-</span><span class="mf">1.00000</span>
<span class="p">(</span><span class="n">dLV</span><span class="o">/</span><span class="n">dLT</span><span class="p">)</span><span class="n">p</span>        <span class="mf">1.4496</span>   <span class="mf">1.3682</span>   <span class="mf">1.0001</span>
<span class="n">Cp</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="p">(</span><span class="n">G</span><span class="p">)(</span><span class="n">K</span><span class="p">)</span>    <span class="mf">2.0951</span>   <span class="mf">1.9171</span>   <span class="mf">0.7308</span>
<span class="n">GAMMAs</span>            <span class="mf">1.1401</span>   <span class="mf">1.1403</span>   <span class="mf">1.2388</span>
<span class="n">SON</span> <span class="n">VEL</span><span class="p">,</span><span class="n">M</span><span class="o">/</span><span class="n">SEC</span>     <span class="mf">1566.3</span>   <span class="mf">1514.4</span>   <span class="mf">1025.6</span>
<span class="n">MACH</span> <span class="n">NUMBER</span>        <span class="mf">0.000</span>    <span class="mf">1.000</span>    <span class="mf">4.123</span>

<span class="n">PERFORMANCE</span> <span class="n">PARAMETERS</span>

<span class="n">Ae</span><span class="o">/</span><span class="n">At</span>                     <span class="mf">1.00000</span>   <span class="mf">40.000</span>
<span class="n">CSTAR</span><span class="p">,</span> <span class="n">FT</span><span class="o">/</span><span class="n">SEC</span>              <span class="mf">7560.0</span>   <span class="mf">7560.0</span>
<span class="n">CF</span>                         <span class="mf">0.6572</span>   <span class="mf">1.8351</span>
<span class="n">Ivac</span><span class="p">,</span><span class="n">LB</span><span class="o">-</span><span class="n">SEC</span><span class="o">/</span><span class="n">LB</span>              <span class="mf">289.8</span>    <span class="mf">451.7</span>
<span class="n">Isp</span><span class="p">,</span> <span class="n">LB</span><span class="o">-</span><span class="n">SEC</span><span class="o">/</span><span class="n">LB</span>              <span class="mf">154.4</span>    <span class="mf">431.2</span>


<span class="n">MOLE</span> <span class="n">FRACTIONS</span>

<span class="o">*</span><span class="n">H</span>               <span class="mf">0.03417</span>  <span class="mf">0.02810</span>  <span class="mf">0.00001</span>
<span class="n">HO2</span>              <span class="mf">0.00003</span>  <span class="mf">0.00002</span>  <span class="mf">0.00000</span>
<span class="o">*</span><span class="n">H2</span>              <span class="mf">0.24832</span>  <span class="mf">0.24538</span>  <span class="mf">0.24401</span>
<span class="n">H2O</span>              <span class="mf">0.66590</span>  <span class="mf">0.68751</span>  <span class="mf">0.75598</span>
<span class="n">H2O2</span>             <span class="mf">0.00001</span>  <span class="mf">0.00001</span>  <span class="mf">0.00000</span>
<span class="o">*</span><span class="n">O</span>               <span class="mf">0.00334</span>  <span class="mf">0.00217</span>  <span class="mf">0.00000</span>
<span class="o">*</span><span class="n">OH</span>              <span class="mf">0.04478</span>  <span class="mf">0.03446</span>  <span class="mf">0.00000</span>
<span class="o">*</span><span class="n">O2</span>              <span class="mf">0.00345</span>  <span class="mf">0.00236</span>  <span class="mf">0.00000</span>

 <span class="o">*</span> <span class="n">THERMODYNAMIC</span> <span class="n">PROPERTIES</span> <span class="n">FITTED</span> <span class="n">TO</span> <span class="mf">20000.</span><span class="n">K</span>

<span class="n">NOTE</span><span class="o">.</span> <span class="n">WEIGHT</span> <span class="n">FRACTION</span> <span class="n">OF</span> <span class="n">FUEL</span> <span class="n">IN</span> <span class="n">TOTAL</span> <span class="n">FUELS</span> <span class="n">AND</span> <span class="n">OF</span> <span class="n">OXIDANT</span> <span class="n">IN</span> <span class="n">TOTAL</span> <span class="n">OXIDANTS</span>
</pre></div>
</div>
</div>
<div class="section" id="transport-properties">
<h2>Transport Properties<a class="headerlink" href="#transport-properties" title="Permalink to this headline">¶</a></h2>
<p>New in RocketCEA version 1.06,
to include transport properties, set the <strong>show_transport</strong> flag.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>
<span class="kn">from</span> <span class="nn">rocketcea.cea_obj</span> <span class="kn">import</span> <span class="n">CEA_Obj</span>

<span class="n">ispObj</span> <span class="o">=</span> <span class="n">CEA_Obj</span><span class="p">(</span> <span class="n">oxName</span><span class="o">=</span><span class="s1">&#39;LOX&#39;</span><span class="p">,</span> <span class="n">fuelName</span><span class="o">=</span><span class="s1">&#39;LH2&#39;</span><span class="p">)</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_full_cea_output</span><span class="p">(</span> <span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">eps</span><span class="o">=</span><span class="mf">40.0</span><span class="p">,</span> 
                                <span class="n">short_output</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">show_transport</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>

<span class="nb">print</span><span class="p">(</span> <span class="n">s</span> <span class="p">)</span>
</pre></div>
</div>
<p>which adds the following lines to the output:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">TRANSPORT</span> <span class="n">PROPERTIES</span> <span class="p">(</span><span class="n">GASES</span> <span class="n">ONLY</span><span class="p">)</span>
  <span class="n">CONDUCTIVITY</span> <span class="n">IN</span> <span class="n">UNITS</span> <span class="n">OF</span> <span class="n">MILLICALORIES</span><span class="o">/</span><span class="p">(</span><span class="n">CM</span><span class="p">)(</span><span class="n">K</span><span class="p">)(</span><span class="n">SEC</span><span class="p">)</span>

<span class="n">VISC</span><span class="p">,</span><span class="n">MILLIPOISE</span>   <span class="mf">1.0588</span>   <span class="mf">1.0153</span>  <span class="mf">0.43328</span>

 <span class="n">WITH</span> <span class="n">FROZEN</span> <span class="n">REACTIONS</span>

<span class="n">Cp</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="p">(</span><span class="n">G</span><span class="p">)(</span><span class="n">K</span><span class="p">)</span>    <span class="mf">0.9029</span>   <span class="mf">0.8950</span>   <span class="mf">0.6859</span>
<span class="n">CONDUCTIVITY</span>      <span class="mf">1.3519</span>   <span class="mf">1.2760</span>   <span class="mf">0.4369</span>
<span class="n">PRANDTL</span> <span class="n">NUMBER</span>    <span class="mf">0.7071</span>   <span class="mf">0.7121</span>   <span class="mf">0.6803</span>
</pre></div>
</div>
<p>To access transport properties, each of the following calls return a tuple of
(Heat Capacity, Viscosity, Thermal Conductivity and Prandtl Number):</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">Cp</span><span class="p">,</span> <span class="n">visc</span><span class="p">,</span> <span class="n">cond</span><span class="p">,</span> <span class="n">Pr</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_Chamber_Transport</span><span class="p">(</span><span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">)</span>
<span class="n">Cp</span><span class="p">,</span> <span class="n">visc</span><span class="p">,</span> <span class="n">cond</span><span class="p">,</span> <span class="n">Pr</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_Chamber_Transport</span><span class="p">(</span><span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">frozen</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>

<span class="n">Cp</span><span class="p">,</span> <span class="n">visc</span><span class="p">,</span> <span class="n">cond</span><span class="p">,</span> <span class="n">Pr</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_Throat_Transport</span><span class="p">(</span><span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">)</span>
<span class="n">Cp</span><span class="p">,</span> <span class="n">visc</span><span class="p">,</span> <span class="n">cond</span><span class="p">,</span> <span class="n">Pr</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_Throat_Transport</span><span class="p">(</span><span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">frozen</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>

<span class="n">Cp</span><span class="p">,</span> <span class="n">visc</span><span class="p">,</span> <span class="n">cond</span><span class="p">,</span> <span class="n">Pr</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_Exit_Transport</span><span class="p">(</span><span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">eps</span><span class="o">=</span><span class="mf">40.0</span><span class="p">)</span>
<span class="n">Cp</span><span class="p">,</span> <span class="n">visc</span><span class="p">,</span> <span class="n">cond</span><span class="p">,</span> <span class="n">Pr</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_Exit_Transport</span><span class="p">(</span><span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">eps</span><span class="o">=</span><span class="mf">40.0</span><span class="p">,</span> <span class="n">frozen</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
</pre></div>
</div>
<p>where the <strong>frozen</strong> flag determines equilibrium or frozen output.</p>
<p>The standard units will be the same as the printout, namely:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">Cp</span>   <span class="o">=</span> <span class="n">CAL</span><span class="o">/</span><span class="p">(</span><span class="n">G</span><span class="p">)(</span><span class="n">K</span><span class="p">)</span>
<span class="n">visc</span> <span class="o">=</span> <span class="n">MILLIPOISE</span>
<span class="n">cond</span> <span class="o">=</span> <span class="n">MILLICALORIES</span><span class="o">/</span><span class="p">(</span><span class="n">CM</span><span class="p">)(</span><span class="n">K</span><span class="p">)(</span><span class="n">SEC</span><span class="p">)</span>
<span class="n">Pr</span>   <span class="o">=</span> <span class="n">dimensionless</span>
</pre></div>
</div>
<p>If different units are desired, use the <strong>cea_obj_w_units</strong> wrapper, for example:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">rocketcea.cea_obj_w_units</span> <span class="kn">import</span> <span class="n">CEA_Obj</span>
<span class="n">C</span> <span class="o">=</span> <span class="n">CEA_Obj</span><span class="p">(</span> <span class="n">oxName</span><span class="o">=</span><span class="s1">&#39;LOX&#39;</span><span class="p">,</span> <span class="n">fuelName</span><span class="o">=</span><span class="s1">&#39;LH2&#39;</span><span class="p">,</span>
             <span class="n">specific_heat_units</span><span class="o">=</span><span class="s1">&#39;kJ/kg-K&#39;</span><span class="p">,</span>
             <span class="n">viscosity_units</span><span class="o">=</span><span class="s1">&#39;poise&#39;</span><span class="p">,</span>
             <span class="n">thermal_cond_units</span><span class="o">=</span><span class="s1">&#39;BTU/s-in-degF&#39;</span><span class="p">)</span>
</pre></div>
</div>
</div>
<div class="section" id="frozen-performance">
<h2>Frozen Performance<a class="headerlink" href="#frozen-performance" title="Permalink to this headline">¶</a></h2>
<p>To run the same LOX/LH2 case above, but with frozen composition during expansion, the following script is used.</p>
<p>Notice here that the flag to freeze the composition at the throat is set.
Otherwise, the chamber composition is used.</p>
<p>Also notice that without the short output flag, the long form of output results.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>
<span class="kn">from</span> <span class="nn">rocketcea.cea_obj</span> <span class="kn">import</span> <span class="n">CEA_Obj</span>

<span class="n">ispObj</span> <span class="o">=</span> <span class="n">CEA_Obj</span><span class="p">(</span> <span class="n">oxName</span><span class="o">=</span><span class="s1">&#39;LOX&#39;</span><span class="p">,</span> <span class="n">fuelName</span><span class="o">=</span><span class="s1">&#39;LH2&#39;</span><span class="p">)</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">ispObj</span><span class="o">.</span><span class="n">get_full_cea_output</span><span class="p">(</span> <span class="n">Pc</span><span class="o">=</span><span class="mf">1000.0</span><span class="p">,</span> <span class="n">MR</span><span class="o">=</span><span class="mf">6.0</span><span class="p">,</span> <span class="n">eps</span><span class="o">=</span><span class="mf">40.0</span><span class="p">,</span> <span class="n">frozen</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">frozenAtThroat</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>

<span class="nb">print</span><span class="p">(</span> <span class="n">s</span> <span class="p">)</span>
</pre></div>
</div>
<p>The result are shown below:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o">*******************************************************************************</span>

        <span class="n">NASA</span><span class="o">-</span><span class="n">GLENN</span> <span class="n">CHEMICAL</span> <span class="n">EQUILIBRIUM</span> <span class="n">PROGRAM</span> <span class="n">CEA</span><span class="p">,</span> <span class="n">OCTOBER</span> <span class="mi">18</span><span class="p">,</span> <span class="mi">2002</span>
                  <span class="n">BY</span>  <span class="n">BONNIE</span> <span class="n">MCBRIDE</span> <span class="n">AND</span> <span class="n">SANFORD</span> <span class="n">GORDON</span>
     <span class="n">REFS</span><span class="p">:</span> <span class="n">NASA</span> <span class="n">RP</span><span class="o">-</span><span class="mi">1311</span><span class="p">,</span> <span class="n">PART</span> <span class="n">I</span><span class="p">,</span> <span class="mi">1994</span> <span class="n">AND</span> <span class="n">NASA</span> <span class="n">RP</span><span class="o">-</span><span class="mi">1311</span><span class="p">,</span> <span class="n">PART</span> <span class="n">II</span><span class="p">,</span> <span class="mi">1996</span>

<span class="o">*******************************************************************************</span>



<span class="n">reac</span>
 <span class="n">fuel</span> <span class="n">H2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>  <span class="n">H</span> <span class="mi">2</span>
 <span class="n">h</span><span class="p">,</span><span class="n">cal</span><span class="o">=-</span><span class="mf">2154.0</span>      <span class="n">t</span><span class="p">(</span><span class="n">k</span><span class="p">)</span><span class="o">=</span><span class="mf">20.27</span>       <span class="n">wt</span><span class="o">%=</span><span class="mf">100.</span>
 <span class="n">oxid</span> <span class="n">O2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>  <span class="n">O</span> <span class="mi">2</span>
 <span class="n">h</span><span class="p">,</span><span class="n">cal</span><span class="o">=-</span><span class="mf">3102.</span>      <span class="n">t</span><span class="p">(</span><span class="n">k</span><span class="p">)</span><span class="o">=</span><span class="mf">90.18</span>       <span class="n">wt</span><span class="o">%=</span><span class="mf">100.</span>

<span class="n">prob</span> <span class="n">case</span><span class="o">=</span><span class="n">LOX_</span><span class="o">/</span><span class="n">_LH2</span>
 <span class="n">rocket</span> <span class="n">frozen</span> <span class="n">nfz</span><span class="o">=</span><span class="mi">2</span>   <span class="n">p</span><span class="p">,</span><span class="n">psia</span><span class="o">=</span><span class="mf">1000.000000</span><span class="p">,</span> <span class="n">supar</span><span class="o">=</span><span class="mf">40.000000</span><span class="p">,</span>
 <span class="n">o</span><span class="o">/</span><span class="n">f</span><span class="o">=</span><span class="mf">6.000000</span>

<span class="n">outp</span>   <span class="n">calories</span>

<span class="n">end</span>

<span class="n">OPTIONS</span><span class="p">:</span> <span class="n">TP</span><span class="o">=</span><span class="n">F</span>  <span class="n">HP</span><span class="o">=</span><span class="n">F</span>  <span class="n">SP</span><span class="o">=</span><span class="n">F</span>  <span class="n">TV</span><span class="o">=</span><span class="n">F</span>  <span class="n">UV</span><span class="o">=</span><span class="n">F</span>  <span class="n">SV</span><span class="o">=</span><span class="n">F</span>  <span class="n">DETN</span><span class="o">=</span><span class="n">F</span>  <span class="n">SHOCK</span><span class="o">=</span><span class="n">F</span>  <span class="n">REFL</span><span class="o">=</span><span class="n">F</span>  <span class="n">INCD</span><span class="o">=</span><span class="n">F</span>
<span class="n">RKT</span><span class="o">=</span><span class="n">T</span>  <span class="n">FROZ</span><span class="o">=</span><span class="n">T</span>  <span class="n">EQL</span><span class="o">=</span><span class="n">F</span>  <span class="n">IONS</span><span class="o">=</span><span class="n">F</span>  <span class="n">SIUNIT</span><span class="o">=</span><span class="n">F</span>  <span class="n">DEBUGF</span><span class="o">=</span><span class="n">F</span>  <span class="n">SHKDBG</span><span class="o">=</span><span class="n">F</span>  <span class="n">DETDBG</span><span class="o">=</span><span class="n">F</span>  <span class="n">TRNSPT</span><span class="o">=</span><span class="n">F</span>

<span class="n">TRACE</span><span class="o">=</span> <span class="mf">0.00E+00</span>  <span class="n">S</span><span class="o">/</span><span class="n">R</span><span class="o">=</span> <span class="mf">0.000000E+00</span>  <span class="n">H</span><span class="o">/</span><span class="n">R</span><span class="o">=</span> <span class="mf">0.000000E+00</span>  <span class="n">U</span><span class="o">/</span><span class="n">R</span><span class="o">=</span> <span class="mf">0.000000E+00</span>

<span class="n">Pc</span><span class="p">,</span><span class="n">BAR</span> <span class="o">=</span>    <span class="mf">68.947304</span>

<span class="n">Pc</span><span class="o">/</span><span class="n">P</span> <span class="o">=</span>

<span class="n">SUBSONIC</span> <span class="n">AREA</span> <span class="n">RATIOS</span> <span class="o">=</span>

<span class="n">SUPERSONIC</span> <span class="n">AREA</span> <span class="n">RATIOS</span> <span class="o">=</span>    <span class="mf">40.0000</span>

<span class="n">NFZ</span><span class="o">=</span>  <span class="mi">2</span>  <span class="n">Mdot</span><span class="o">/</span><span class="n">Ac</span><span class="o">=</span> <span class="mf">0.000000E+00</span>  <span class="n">Ac</span><span class="o">/</span><span class="n">At</span><span class="o">=</span> <span class="mf">0.000000E+00</span>

   <span class="n">REACTANT</span>          <span class="n">WT</span><span class="o">.</span><span class="n">FRAC</span>   <span class="p">(</span><span class="n">ENERGY</span><span class="o">/</span><span class="n">R</span><span class="p">),</span><span class="n">K</span>   <span class="n">TEMP</span><span class="p">,</span><span class="n">K</span>  <span class="n">DENSITY</span>
       <span class="n">EXPLODED</span> <span class="n">FORMULA</span>
<span class="n">F</span><span class="p">:</span> <span class="n">H2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>            <span class="mf">1.000000</span>  <span class="o">-</span><span class="mf">0.108393E+04</span>    <span class="mf">20.27</span>  <span class="mf">0.0000</span>
         <span class="n">H</span>  <span class="mf">2.00000</span>
<span class="n">O</span><span class="p">:</span> <span class="n">O2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>            <span class="mf">1.000000</span>  <span class="o">-</span><span class="mf">0.156098E+04</span>    <span class="mf">90.18</span>  <span class="mf">0.0000</span>
         <span class="n">O</span>  <span class="mf">2.00000</span>

 <span class="n">SPECIES</span> <span class="n">BEING</span> <span class="n">CONSIDERED</span> <span class="n">IN</span> <span class="n">THIS</span> <span class="n">SYSTEM</span>
<span class="p">(</span><span class="n">CONDENSED</span> <span class="n">PHASE</span> <span class="n">MAY</span> <span class="n">HAVE</span> <span class="n">NAME</span> <span class="n">LISTED</span> <span class="n">SEVERAL</span> <span class="n">TIMES</span><span class="p">)</span>
 <span class="n">LAST</span> <span class="n">thermo</span><span class="o">.</span><span class="n">inp</span> <span class="n">UPDATE</span><span class="p">:</span>    <span class="mi">9</span><span class="o">/</span><span class="mi">09</span><span class="o">/</span><span class="mi">04</span>

 <span class="n">g</span> <span class="mi">6</span><span class="o">/</span><span class="mi">97</span>  <span class="o">*</span><span class="n">H</span>               <span class="n">g</span> <span class="mi">4</span><span class="o">/</span><span class="mi">02</span>  <span class="n">HO2</span>              <span class="n">tpis78</span>  <span class="o">*</span><span class="n">H2</span>
 <span class="n">g</span> <span class="mi">8</span><span class="o">/</span><span class="mi">89</span>  <span class="n">H2O</span>              <span class="n">g</span> <span class="mi">6</span><span class="o">/</span><span class="mi">99</span>  <span class="n">H2O2</span>             <span class="n">g</span> <span class="mi">5</span><span class="o">/</span><span class="mi">97</span>  <span class="o">*</span><span class="n">O</span>
 <span class="n">g</span> <span class="mi">4</span><span class="o">/</span><span class="mi">02</span>  <span class="o">*</span><span class="n">OH</span>              <span class="n">tpis89</span>  <span class="o">*</span><span class="n">O2</span>              <span class="n">g</span> <span class="mi">8</span><span class="o">/</span><span class="mi">01</span>  <span class="n">O3</span>
 <span class="n">g11</span><span class="o">/</span><span class="mi">99</span>  <span class="n">H2O</span><span class="p">(</span><span class="n">cr</span><span class="p">)</span>          <span class="n">g</span> <span class="mi">8</span><span class="o">/</span><span class="mi">01</span>  <span class="n">H2O</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>           <span class="n">g</span> <span class="mi">8</span><span class="o">/</span><span class="mi">01</span>  <span class="n">H2O</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>

<span class="n">O</span><span class="o">/</span><span class="n">F</span> <span class="o">=</span>   <span class="mf">6.000000</span>

                      <span class="n">EFFECTIVE</span> <span class="n">FUEL</span>     <span class="n">EFFECTIVE</span> <span class="n">OXIDANT</span>        <span class="n">MIXTURE</span>
<span class="n">ENTHALPY</span>                  <span class="n">h</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span><span class="o">/</span><span class="n">R</span>              <span class="n">h</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span><span class="o">/</span><span class="n">R</span>               <span class="n">h0</span><span class="o">/</span><span class="n">R</span>
<span class="p">(</span><span class="n">KG</span><span class="o">-</span><span class="n">MOL</span><span class="p">)(</span><span class="n">K</span><span class="p">)</span><span class="o">/</span><span class="n">KG</span>       <span class="o">-</span><span class="mf">0.53769505E+03</span>     <span class="o">-</span><span class="mf">0.48782395E+02</span>     <span class="o">-</span><span class="mf">0.11862706E+03</span>

<span class="n">KG</span><span class="o">-</span><span class="n">FORM</span><span class="o">.</span><span class="n">WT</span><span class="o">./</span><span class="n">KG</span>             <span class="n">bi</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>               <span class="n">bi</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>               <span class="n">b0i</span>
 <span class="o">*</span><span class="n">H</span>                   <span class="mf">0.99212255E+00</span>      <span class="mf">0.00000000E+00</span>      <span class="mf">0.14173179E+00</span>
 <span class="o">*</span><span class="n">O</span>                   <span class="mf">0.00000000E+00</span>      <span class="mf">0.62502344E-01</span>      <span class="mf">0.53573438E-01</span>

<span class="n">POINT</span> <span class="n">ITN</span>      <span class="n">T</span>            <span class="n">H</span>           <span class="n">O</span>
  <span class="mi">1</span>    <span class="mi">9</span>    <span class="mf">3483.350</span>      <span class="o">-</span><span class="mf">9.273</span>     <span class="o">-</span><span class="mf">16.160</span>
<span class="n">Pinf</span><span class="o">/</span><span class="n">Pt</span> <span class="o">=</span> <span class="mf">1.734909</span>
  <span class="mi">2</span>    <span class="mi">4</span>    <span class="mf">3291.075</span>      <span class="o">-</span><span class="mf">9.450</span>     <span class="o">-</span><span class="mf">16.510</span>
<span class="n">Pinf</span><span class="o">/</span><span class="n">Pt</span> <span class="o">=</span> <span class="mf">1.735136</span>
  <span class="mi">2</span>    <span class="mi">1</span>    <span class="mf">3291.030</span>      <span class="o">-</span><span class="mf">9.450</span>     <span class="o">-</span><span class="mf">16.510</span>





          <span class="n">THEORETICAL</span> <span class="n">ROCKET</span> <span class="n">PERFORMANCE</span> <span class="n">ASSUMING</span> <span class="n">FROZEN</span> <span class="n">COMPOSITION</span>
                                <span class="n">AFTER</span> <span class="n">POINT</span> <span class="mi">2</span>

<span class="n">Pinj</span> <span class="o">=</span>  <span class="mf">1000.0</span> <span class="n">PSIA</span>
<span class="n">CASE</span> <span class="o">=</span> <span class="n">LOX_</span><span class="o">/</span><span class="n">_LH2</span>

            <span class="n">REACTANT</span>                    <span class="n">WT</span> <span class="n">FRACTION</span>      <span class="n">ENERGY</span>      <span class="n">TEMP</span>
                                         <span class="p">(</span><span class="n">SEE</span> <span class="n">NOTE</span><span class="p">)</span>      <span class="n">CAL</span><span class="o">/</span><span class="n">MOL</span>       <span class="n">K</span>
<span class="n">FUEL</span>        <span class="n">H2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>                        <span class="mf">1.0000000</span>     <span class="o">-</span><span class="mf">2154.000</span>     <span class="mf">20.270</span>
<span class="n">OXIDANT</span>     <span class="n">O2</span><span class="p">(</span><span class="n">L</span><span class="p">)</span>                        <span class="mf">1.0000000</span>     <span class="o">-</span><span class="mf">3102.000</span>     <span class="mf">90.180</span>

<span class="n">O</span><span class="o">/</span><span class="n">F</span><span class="o">=</span>    <span class="mf">6.00000</span>  <span class="o">%</span><span class="n">FUEL</span><span class="o">=</span> <span class="mf">14.285714</span>  <span class="n">R</span><span class="p">,</span><span class="n">EQ</span><span class="o">.</span><span class="n">RATIO</span><span class="o">=</span> <span class="mf">1.322780</span>  <span class="n">PHI</span><span class="p">,</span><span class="n">EQ</span><span class="o">.</span><span class="n">RATIO</span><span class="o">=</span> <span class="mf">1.322780</span>

                <span class="n">CHAMBER</span>   <span class="n">THROAT</span>     <span class="n">EXIT</span>
<span class="n">Pinf</span><span class="o">/</span><span class="n">P</span>            <span class="mf">1.0000</span>   <span class="mf">1.7351</span>   <span class="mf">539.53</span>
<span class="n">P</span><span class="p">,</span> <span class="n">ATM</span>            <span class="mf">68.046</span>   <span class="mf">39.216</span>  <span class="mf">0.12612</span>
<span class="n">T</span><span class="p">,</span> <span class="n">K</span>             <span class="mf">3483.35</span>  <span class="mf">3291.03</span>  <span class="mf">1149.39</span>
<span class="n">RHO</span><span class="p">,</span> <span class="n">G</span><span class="o">/</span><span class="n">CC</span>       <span class="mf">3.2038</span><span class="o">-</span><span class="mi">3</span> <span class="mf">1.9758</span><span class="o">-</span><span class="mi">3</span> <span class="mf">1.8194</span><span class="o">-</span><span class="mi">5</span>
<span class="n">H</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="n">G</span>         <span class="o">-</span><span class="mf">235.74</span>  <span class="o">-</span><span class="mf">509.81</span> <span class="o">-</span><span class="mf">2255.83</span>
<span class="n">U</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="n">G</span>         <span class="o">-</span><span class="mf">750.09</span>  <span class="o">-</span><span class="mf">990.49</span> <span class="o">-</span><span class="mf">2423.71</span>
<span class="n">G</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="n">G</span>        <span class="o">-</span><span class="mf">15090.3</span> <span class="o">-</span><span class="mf">14544.2</span> <span class="o">-</span><span class="mf">7157.33</span>
<span class="n">S</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="p">(</span><span class="n">G</span><span class="p">)(</span><span class="n">K</span><span class="p">)</span>     <span class="mf">4.2644</span>   <span class="mf">4.2644</span>   <span class="mf">4.2644</span>

<span class="n">M</span><span class="p">,</span> <span class="p">(</span><span class="mi">1</span><span class="o">/</span><span class="n">n</span><span class="p">)</span>          <span class="mf">13.458</span>   <span class="mf">13.606</span>   <span class="mf">13.606</span>
<span class="n">Cp</span><span class="p">,</span> <span class="n">CAL</span><span class="o">/</span><span class="p">(</span><span class="n">G</span><span class="p">)(</span><span class="n">K</span><span class="p">)</span>    <span class="mf">2.0951</span>   <span class="mf">1.9171</span>   <span class="mf">0.6859</span>
<span class="n">GAMMAs</span>            <span class="mf">1.1401</span>   <span class="mf">1.1403</span>   <span class="mf">1.2705</span>
<span class="n">SON</span> <span class="n">VEL</span><span class="p">,</span><span class="n">M</span><span class="o">/</span><span class="n">SEC</span>     <span class="mf">1566.3</span>   <span class="mf">1514.4</span>    <span class="mf">944.7</span>
<span class="n">MACH</span> <span class="n">NUMBER</span>        <span class="mf">0.000</span>    <span class="mf">1.000</span>    <span class="mf">4.352</span>

<span class="n">PERFORMANCE</span> <span class="n">PARAMETERS</span>

<span class="n">Ae</span><span class="o">/</span><span class="n">At</span>                     <span class="mf">1.00000</span>   <span class="mf">40.000</span>
<span class="n">CSTAR</span><span class="p">,</span> <span class="n">FT</span><span class="o">/</span><span class="n">SEC</span>              <span class="mf">7560.0</span>   <span class="mf">7560.0</span>
<span class="n">CF</span>                         <span class="mf">0.6572</span>   <span class="mf">1.7843</span>
<span class="n">Ivac</span><span class="p">,</span><span class="n">LB</span><span class="o">-</span><span class="n">SEC</span><span class="o">/</span><span class="n">LB</span>              <span class="mf">289.8</span>    <span class="mf">436.7</span>
<span class="n">Isp</span><span class="p">,</span> <span class="n">LB</span><span class="o">-</span><span class="n">SEC</span><span class="o">/</span><span class="n">LB</span>              <span class="mf">154.4</span>    <span class="mf">419.3</span>

<span class="n">MOLE</span> <span class="n">FRACTIONS</span>

<span class="o">*</span><span class="n">H</span>              <span class="mf">0.02810</span>   <span class="n">HO2</span>             <span class="mf">0.00002</span>   <span class="o">*</span><span class="n">H2</span>             <span class="mf">0.24538</span>
<span class="n">H2O</span>             <span class="mf">0.68751</span>   <span class="n">H2O2</span>            <span class="mf">0.00001</span>   <span class="o">*</span><span class="n">O</span>              <span class="mf">0.00217</span>
<span class="o">*</span><span class="n">OH</span>             <span class="mf">0.03446</span>   <span class="o">*</span><span class="n">O2</span>             <span class="mf">0.00236</span>

 <span class="o">*</span> <span class="n">THERMODYNAMIC</span> <span class="n">PROPERTIES</span> <span class="n">FITTED</span> <span class="n">TO</span> <span class="mf">20000.</span><span class="n">K</span>

   <span class="n">PRODUCTS</span> <span class="n">WHICH</span> <span class="n">WERE</span> <span class="n">CONSIDERED</span> <span class="n">BUT</span> <span class="n">WHOSE</span>
</pre></div>
</div>
</div>
</div>


          </div>
        </div>
      </div>
      <div class="clearer"></div>
    </div>
    <div class="related" role="navigation" aria-label="related navigation">
      <h3>Navigation</h3>
      <ul>
        <li class="right" style="margin-right: 10px">
          <a href="genindex.html" title="General Index"
             >index</a></li>
        <li class="right" >
          <a href="py-modindex.html" title="Python Module Index"
             >modules</a> |</li>
        <li class="right" >
          <a href="traditional_example.html" title="Traditional Example"
             >next</a> |</li>
        <li class="right" >
          <a href="installgfortran.html" title="Install gfortran"
             >previous</a> |</li>
        <li class="nav-item nav-item-0"><a href="index.html">RocketCEA v1.1.18 documentation</a> &#187;</li> 
      </ul>
    </div>
    <div class="footer" role="contentinfo">
        &#169; <a href="copyright.html">Copyright</a> 2015, Charlie Taylor.
      Created using <a href="http://sphinx-doc.org/">Sphinx</a> 2.1.2.
    </div>
  </body>
</html>