140 lines
3.8 KiB
C++
140 lines
3.8 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2009-2010 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::tabulatedWallFunctions::SpaldingsLaw
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Description
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Computes U+ as a function of Reynolds number by inverting Spaldings law.
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Example dictionary specification:
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tabulatedWallFunction SpaldingsLaw;
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// Output table info
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tableName uPlusWallFunctionData; // Output table name
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log10 yes; // Rey interpreted as log10(Rey)
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dx 0.2; // Interval log10(Rey)
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x0 -3; // Minimum log10(Rey)
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xMax 7; // Maximum log10(Rey)
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SpaldingsLawCoeffs
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{
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kappa 0.41; // Von Karman constant
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E 9.8; // Law-of-the-wall E coefficient
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}
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SourceFiles
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SpaldingsLaw.C
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\*---------------------------------------------------------------------------*/
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#ifndef SpaldingsLaw_H
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#define SpaldingsLaw_H
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#include "tabulatedWallFunction.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace tabulatedWallFunctions
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{
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/*---------------------------------------------------------------------------*\
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Class SpaldingsLaw Declaration
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\*---------------------------------------------------------------------------*/
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class SpaldingsLaw
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:
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public tabulatedWallFunction
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{
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protected:
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// Protected data
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//- Von Karman constant
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scalar kappa_;
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//- Law-of-the-wall E coefficient
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scalar E_;
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// Newton iteration solution properties
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//- Maximum number of iterations
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static const label maxIters_;
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//- Tolerance
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static const scalar tolerance_;
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// Protected Member Functions
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//- Invert the function
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virtual void invertFunction();
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public:
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//- Run-time type information
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TypeName("SpaldingsLaw");
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// Constructors
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SpaldingsLaw(const dictionary& dict, const polyMesh& mesh);
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//- Destructor
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virtual ~SpaldingsLaw();
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// Member Functions
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// Access
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//- Return y+ as a function of u+
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virtual scalar yPlus(const scalar uPlus) const;
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//- Return Reynolds number as a function of u+
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virtual scalar Re(const scalar uPlus) const;
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// I-O
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//- Write to Ostream
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virtual void writeData(Ostream& os) const;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace tabulatedWallFunctions
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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