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/*
* Construction of initial conditions for a binary star computation.
*
*/
/*
* Copyright (c) 2004 Francois Limousin
*
* This file is part of LORENE.
*
* LORENE is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* LORENE is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LORENE; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
char init_bin_C[] = "$Header: /cvsroot/Lorene/Codes/Binary_star/init_bin.C,v 1.7 2014/10/13 08:53:55 j_novak Exp $" ;
/*
* $Id: init_bin.C,v 1.7 2014/10/13 08:53:55 j_novak Exp $
* $Log: init_bin.C,v $
* Revision 1.7 2014/10/13 08:53:55 j_novak
* Lorene classes and functions now belong to the namespace Lorene.
*
* Revision 1.6 2014/10/06 15:09:40 j_novak
* Modified #include directives to use c++ syntax.
*
* Revision 1.5 2005/09/13 19:47:28 f_limousin
* Reintroduction of the resolution of the equations in cartesian coordinates.
*
* Revision 1.4 2004/09/16 12:14:30 f_limousin
* *** empty log message ***
*
* Revision 1.2 2004/01/22 10:12:50 f_limousin
* First version
*
* $Header: /cvsroot/Lorene/Codes/Binary_star/init_bin.C,v 1.7 2014/10/13 08:53:55 j_novak Exp $
*
*/
// headers C
#include <cstdlib>
#include <cmath>
// headers Lorene
#include "unites.h"
#include "binary.h"
#include "eos.h"
#include "utilitaires.h"
#include "graphique.h"
#include "nbr_spx.h"
using namespace Lorene ;
//******************************************************************************
int main(){
// Identification of all the subroutines called by the code :
// system("ident init_bin") ;
//-----------------------------------------------------------------------
// Input data for the multi-grid no. 1
//-----------------------------------------------------------------------
int nt, np, nz ;
char blabla[80] ;
ifstream fich("par_grid1.d") ;
fich.getline(blabla, 80);
fich.getline(blabla, 80);
fich >> nz; fich.getline(blabla, 80) ;
int nzet1 ;
fich >> nzet1; fich.getline(blabla, 80) ;
fich >> nt; fich.getline(blabla, 80) ;
fich >> np; fich.getline(blabla, 80) ;
cout << "total number of domains : nz = " << nz << endl ;
cout << "number of points in phi : np = " << np << endl ;
cout << "number of points in theta : nt = " << nt << endl ;
int* nr = new int[nz];
int* nt_tab = new int[nz];
int* np_tab = new int[nz];
double* bornes = new double[nz+1];
fich.getline(blabla, 80);
for (int l=0; l<nz; l++) {
fich >> nr[l];
fich >> bornes[l]; fich.getline(blabla, 80) ;
np_tab[l] = np ;
nt_tab[l] = nt ;
}
bornes[nz] = __infinity ;
fich.close();
// Type of r sampling :
int* type_r = new int[nz];
type_r[0] = RARE ;
for (int l=1; l<nz-1; l++) {
type_r[l] = FIN ;
}
type_r[nz-1] = UNSURR ;
// Type of sampling in theta and phi :
int type_t = SYM ;
int type_p = NONSYM ;
//-----------------------------------------------------------------------
// Construction of multi-grid 1 and mapping 1
//-----------------------------------------------------------------------
Mg3d mg1(nz, nr, type_r, nt_tab, type_t, np_tab, type_p) ;
Map_et mp1(mg1, bornes) ;
delete [] nr ;
delete [] nt_tab ;
delete [] np_tab ;
delete [] type_r ;
delete [] bornes ;
//-----------------------------------------------------------------------
// Input data for the multi-grid no. 2
//-----------------------------------------------------------------------
fich.open("par_grid2.d") ;
fich.getline(blabla, 80);
fich.getline(blabla, 80);
fich >> nz; fich.getline(blabla, 80) ;
int nzet2 ;
fich >> nzet2; fich.getline(blabla, 80) ;
fich >> nt; fich.getline(blabla, 80) ;
fich >> np; fich.getline(blabla, 80) ;
cout << "total number of domains : nz = " << nz << endl ;
cout << "number of points in phi : np = " << np << endl ;
cout << "number of points in theta : nt = " << nt << endl ;
nr = new int[nz];
nt_tab = new int[nz];
np_tab = new int[nz];
bornes = new double[nz+1];
fich.getline(blabla, 80);
for (int l=0; l<nz; l++) {
fich >> nr[l];
fich >> bornes[l]; fich.getline(blabla, 80) ;
np_tab[l] = np ;
nt_tab[l] = nt ;
}
bornes[nz] = __infinity ;
fich.close();
// Type of r sampling :
type_r = new int[nz];
type_r[0] = RARE ;
for (int l=1; l<nz-1; l++) {
type_r[l] = FIN ;
}
type_r[nz-1] = UNSURR ;
//-----------------------------------------------------------------------
// Construction of multi-grid 2 and mapping 2
//-----------------------------------------------------------------------
Mg3d mg2(nz, nr, type_r, nt_tab, type_t, np_tab, type_p) ;
Map_et mp2(mg2, bornes) ;
delete [] nr ;
delete [] nt_tab ;
delete [] np_tab ;
delete [] type_r ;
delete [] bornes ;
cout << endl << "Multi-grid 1 : "
<< endl << "============ " << endl << mg1 << endl ;
cout << "Mapping 1 : "
<< endl << "========= " << endl << mp1 << endl ;
cout << endl << "Multi-grid 2 : "
<< endl << "============ " << endl << mg2 << endl ;
cout << "Mapping 2 : "
<< endl << "========= " << endl << mp2 << endl ;
//-----------------------------------------------------------------------
// Equation of state for star 1
//-----------------------------------------------------------------------
fich.open("par_eos1.d") ;
Eos* peos1 = Eos::eos_from_file(fich) ;
Eos& eos1 = *peos1 ;
fich.close() ;
//-----------------------------------------------------------------------
// Equation of state for star 2
//-----------------------------------------------------------------------
fich.open("par_eos2.d") ;
Eos* peos2 = Eos::eos_from_file(fich) ;
Eos& eos2 = *peos2 ;
fich.close() ;
cout << endl << "Equation of state of star 1 : "
<< endl << "=========================== " << endl << eos1 << endl ;
cout << endl << "Equation of state of star 2 : "
<< endl << "=========================== " << endl << eos2 << endl ;
//-----------------------------------------------------------------------
// Physical parameters imput
//-----------------------------------------------------------------------
using namespace Unites ;
fich.open("par_init.d") ;
fich.getline(blabla, 80) ;
fich.getline(blabla, 80) ;
double separ ;
fich >> separ; fich.getline(blabla, 80) ;
separ *= km ; // translation in machine units
int irrot1_i, irrot2_i ;
double ent_c1, ent_c2 ;
fich >> ent_c1 ; fich.getline(blabla, 80) ;
fich >> irrot1_i ; fich.getline(blabla, 80) ;
bool irrot1 = (irrot1_i == 1) ;
fich >> ent_c2 ; fich.getline(blabla, 80) ;
fich >> irrot2_i ; fich.getline(blabla, 80) ;
bool irrot2 = (irrot2_i == 1) ;
int conf_flat_i ;
fich >> conf_flat_i; fich.getline(blabla, 80) ;
bool conf_flat = (conf_flat_i == 1) ;
fich.close() ;
cout << endl << "Requested orbital separation : " << separ / km
<< " km" << endl ;
//-----------------------------------------------------------------------
// Construction of a binary system
//-----------------------------------------------------------------------
Binary star(mp1, nzet1, eos1, irrot1,
mp2, nzet2, eos2, irrot2, conf_flat) ;
//-----------------------------------------------------------------------
// Computation of two static configurations
//-----------------------------------------------------------------------
double precis = 1.e-12 ;
cout << endl << "Computation of a static configuration for star 1"
<< endl << "================================================" << endl ;
(star.set(1)).equilibrium_spher(ent_c1, precis) ;
(star.set(1)).set_logn_auto (star(1).get_logn()) ;
(star.set(1)).set_lnq_auto (star(1).get_lnq()) ;
cout << endl << "Computation of a static configuration for star 2"
<< endl << "================================================" << endl ;
(star.set(2)).equilibrium_spher(ent_c2, precis) ;
(star.set(2)).set_logn_auto (star(2).get_logn()) ;
(star.set(2)).set_lnq_auto (star(2).get_lnq()) ;
//-----------------------------------------------------------------------
// Sets the stars at Newtonian (Keplerian) position
//-----------------------------------------------------------------------
// Omega and rotation axis
// -----------------------
double total_mass = star(1).mass_g() + star(2).mass_g() ;
star.set_omega() = sqrt( g_si/g_unit * total_mass / pow(separ, 3.) ) ;
star.set_x_axe() = 0 ;
// Position of the two stars
// -------------------------
for (int i=1 ; i<=2 ; i++) {
double xa_et = (star(3-i).mass_g()) / total_mass * separ ;
if (i == 1) xa_et = - xa_et ;
((star.set(i)).set_mp()).set_ori(xa_et, 0., 0.) ;
}
// Orientation of the two stars
// ----------------------------
// Star 1 aligned with the absolute frame :
((star.set(1)).set_mp()).set_rot_phi(0.) ;
// Star 2 anti-aligned with the absolute frame :
((star.set(2)).set_mp()).set_rot_phi(M_PI) ;
cout << endl
<< "=============================================================" << endl
<< "=============================================================" << endl ;
cout << endl << "Final characteristics of the computed system : " << endl ;
cout.precision(16) ;
cout << star << endl ;
//-----------------------------------------------------------------------
// The result is written in a file
//-----------------------------------------------------------------------
FILE* fresu = fopen("ini.d", "w") ;
int mer = 0 ;
fwrite(&mer, sizeof(int), 1, fresu) ; // mer
mg1.sauve(fresu) ;
mp1.sauve(fresu) ;
eos1.sauve(fresu) ;
mg2.sauve(fresu) ;
mp2.sauve(fresu) ;
eos2.sauve(fresu) ;
star.sauve(fresu) ;
fclose(fresu) ;
// Cleaning
// --------
delete peos1 ;
delete peos2 ;
return EXIT_SUCCESS ;
}
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