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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM 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 3 of the License, or
(at your option) any later version.
OpenFOAM 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 OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::tabulatedWallFunctions::SpaldingsLaw
Description
Computes U+ as a function of Reynolds number by inverting Spaldings law.
Example dictionary specification:
tabulatedWallFunction SpaldingsLaw;
// Output table info
tableName uPlusWallFunctionData; // Output table name
log10 yes; // Rey interpreted as log10(Rey)
dx 0.2; // Interval log10(Rey)
x0 -3; // Minimum log10(Rey)
xMax 7; // Maximum log10(Rey)
SpaldingsLawCoeffs
{
kappa 0.41; // Von Karman constant
E 9.8; // Law-of-the-wall E coefficient
}
SourceFiles
SpaldingsLaw.C
\*---------------------------------------------------------------------------*/
#ifndef SpaldingsLaw_H
#define SpaldingsLaw_H
#include "tabulatedWallFunction.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace tabulatedWallFunctions
{
/*---------------------------------------------------------------------------*\
Class SpaldingsLaw Declaration
\*---------------------------------------------------------------------------*/
class SpaldingsLaw
:
public tabulatedWallFunction
{
protected:
// Protected data
//- Von Karman constant
scalar kappa_;
//- Law-of-the-wall E coefficient
scalar E_;
// Newton iteration solution properties
//- Maximum number of iterations
static const label maxIters_;
//- Tolerance
static const scalar tolerance_;
// Protected Member Functions
//- Invert the function
virtual void invertFunction();
public:
//- Run-time type information
TypeName("SpaldingsLaw");
// Constructors
SpaldingsLaw(const dictionary& dict, const polyMesh& mesh);
//- Destructor
virtual ~SpaldingsLaw();
// Member Functions
// Access
//- Return y+ as a function of u+
virtual scalar yPlus(const scalar uPlus) const;
//- Return Reynolds number as a function of u+
virtual scalar Re(const scalar uPlus) const;
// I-O
//- Write to Ostream
virtual void writeData(Ostream& os) const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace tabulatedWallFunctions
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
|
