Refactored remaining Spalart Allmaras mut wall functions
1. mutSpalartAllmarasStandardWallFunction: same as mutUWallFunction 2. mutSpalartAllmarasStandardRoughWallFunction: same as mutURoughWallFunction 3. mutSpalartAllmarasWallFunction: refactored such that it derives from mutWallFunction
This commit is contained in:
Vuko Vukcevic
parent
6681c7e1ee
commit
da6f48e599
6 changed files with 96 additions and 504 deletions
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@ -23,6 +23,9 @@ $(mutWallFunctions)/mutkWallFunction/mutkWallFunctionFvPatchScalarField.C
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$(mutWallFunctions)/mutkRoughWallFunction/mutkRoughWallFunctionFvPatchScalarField.C
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$(mutWallFunctions)/mutUWallFunction/mutUWallFunctionFvPatchScalarField.C
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$(mutWallFunctions)/mutURoughWallFunction/mutURoughWallFunctionFvPatchScalarField.C
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$(mutWallFunctions)/mutSpalartAllmarasStandardWallFunction/mutSpalartAllmarasStandardWallFunctionFvPatchScalarField.C
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$(mutWallFunctions)/mutSpalartAllmarasStandardRoughWallFunction/mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField.C
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$(mutWallFunctions)/mutSpalartAllmarasWallFunction/mutSpalartAllmarasWallFunctionFvPatchScalarField.C
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epsilonWallFunctions = $(wallFunctions)/epsilonWallFunctions
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@ -38,171 +38,6 @@ namespace compressible
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namespace RASModels
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{
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// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
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tmp<scalarField>
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mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField::calcYPlus
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(
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const scalarField& magUp
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) const
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{
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const label patchI = patch().index();
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const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
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const scalarField& y = rasModel.y()[patchI];
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const scalarField& muw = rasModel.mu().boundaryField()[patchI];
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const fvPatchScalarField& rho = rasModel.rho().boundaryField()[patchI];
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tmp<scalarField> tyPlus(new scalarField(patch().size(), 0.0));
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scalarField& yPlus = tyPlus();
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if (roughnessHeight_ > 0.0)
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{
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// Rough Walls
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const scalar c_1 = 1/(90 - 2.25) + roughnessConstant_;
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static const scalar c_2 = 2.25/(90 - 2.25);
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static const scalar c_3 = 2.0*atan(1.0)/log(90/2.25);
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static const scalar c_4 = c_3*log(2.25);
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//if (KsPlusBasedOnYPlus_)
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{
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// If KsPlus is based on YPlus the extra term added to the law
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// of the wall will depend on yPlus
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forAll(yPlus, facei)
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{
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const scalar magUpara = magUp[facei];
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const scalar Re = rho[facei]*magUpara*y[facei]/muw[facei];
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const scalar kappaRe = kappa_*Re;
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scalar yp = yPlusLam_;
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const scalar ryPlusLam = 1.0/yp;
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int iter = 0;
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scalar yPlusLast = 0.0;
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scalar dKsPlusdYPlus = roughnessHeight_/y[facei];
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// Enforce the roughnessHeight to be less than the distance to
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// the first cell centre.
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if (dKsPlusdYPlus > 1)
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{
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dKsPlusdYPlus = 1;
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}
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// Additional tuning parameter (fudge factor) - nominally = 1
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dKsPlusdYPlus *= roughnessFudgeFactor_;
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do
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{
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yPlusLast = yp;
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// The non-dimensional roughness height
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scalar KsPlus = yp*dKsPlusdYPlus;
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// The extra term in the law-of-the-wall
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scalar G = 0.0;
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scalar yPlusGPrime = 0.0;
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if (KsPlus >= 90)
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{
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const scalar t_1 = 1 + roughnessConstant_*KsPlus;
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G = log(t_1);
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yPlusGPrime = roughnessConstant_*KsPlus/t_1;
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}
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else if (KsPlus > 2.25)
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{
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const scalar t_1 = c_1*KsPlus - c_2;
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const scalar t_2 = c_3*log(KsPlus) - c_4;
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const scalar sint_2 = sin(t_2);
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const scalar logt_1 = log(t_1);
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G = logt_1*sint_2;
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yPlusGPrime =
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(c_1*sint_2*KsPlus/t_1) + (c_3*logt_1*cos(t_2));
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}
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scalar denom = 1.0 + log(E_*yp) - G - yPlusGPrime;
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if (mag(denom) > VSMALL)
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{
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yp = (kappaRe + yp*(1 - yPlusGPrime))/denom;
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}
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} while
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(
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mag(ryPlusLam*(yp - yPlusLast)) > 0.0001
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&& ++iter < 10
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&& yp > VSMALL
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);
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yPlus[facei] = max(0.0, yp);
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}
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}
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}
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else
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{
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// Smooth Walls
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forAll(yPlus, facei)
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{
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const scalar magUpara = magUp[facei];
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const scalar Re = rho[facei]*magUpara*y[facei]/muw[facei];
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const scalar kappaRe = kappa_*Re;
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scalar yp = yPlusLam_;
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const scalar ryPlusLam = 1.0/yp;
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int iter = 0;
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scalar yPlusLast = 0.0;
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do
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{
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yPlusLast = yp;
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yp = (kappaRe + yp)/(1.0 + log(E_*yp));
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} while
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(
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mag(ryPlusLam*(yp - yPlusLast)) > 0.0001
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&& ++iter < 10
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);
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yPlus[facei] = max(0.0, yp);
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}
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}
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return tyPlus;
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}
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tmp<scalarField>
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mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField::calcMut() const
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{
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const label patchI = patch().index();
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const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
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const scalarField& y = rasModel.y()[patchI];
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const fvPatchVectorField& Uw = rasModel.U().boundaryField()[patchI];
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const scalarField& muw = rasModel.mu().boundaryField()[patchI];
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const fvPatchScalarField& rho = rasModel.rho().boundaryField()[patchI];
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scalarField magUp = mag(Uw.patchInternalField() - Uw);
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tmp<scalarField> tyPlus = calcYPlus(magUp);
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scalarField& yPlus = tyPlus();
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tmp<scalarField> tmutw(new scalarField(patch().size(), 0.0));
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scalarField& mutw = tmutw();
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forAll(yPlus, facei)
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{
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if (yPlus[facei] > yPlusLam_)
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{
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const scalar Re = rho[facei]*magUp[facei]*y[facei]/muw[facei];
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mutw[facei] = muw[facei]*(sqr(yPlus[facei])/Re - 1);
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}
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}
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return tmutw;
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField::
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@ -212,10 +47,7 @@ mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField
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const DimensionedField<scalar, volMesh>& iF
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)
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:
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mutWallFunctionFvPatchScalarField(p, iF),
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roughnessHeight_(pTraits<scalar>::zero),
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roughnessConstant_(pTraits<scalar>::zero),
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roughnessFudgeFactor_(pTraits<scalar>::zero)
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mutURoughWallFunctionFvPatchScalarField(p, iF)
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{}
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@ -228,10 +60,7 @@ mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField
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const fvPatchFieldMapper& mapper
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)
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:
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mutWallFunctionFvPatchScalarField(ptf, p, iF, mapper),
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roughnessHeight_(ptf.roughnessHeight_),
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roughnessConstant_(ptf.roughnessConstant_),
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roughnessFudgeFactor_(ptf.roughnessFudgeFactor_)
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mutURoughWallFunctionFvPatchScalarField(ptf, p, iF, mapper)
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{}
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@ -243,10 +72,7 @@ mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField
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const dictionary& dict
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)
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:
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mutWallFunctionFvPatchScalarField(p, iF, dict),
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roughnessHeight_(readScalar(dict.lookup("roughnessHeight"))),
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roughnessConstant_(readScalar(dict.lookup("roughnessConstant"))),
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roughnessFudgeFactor_(readScalar(dict.lookup("roughnessFudgeFactor")))
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mutURoughWallFunctionFvPatchScalarField(p, iF, dict)
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{}
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@ -256,10 +82,7 @@ mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField
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const mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField& rwfpsf
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)
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:
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mutWallFunctionFvPatchScalarField(rwfpsf),
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roughnessHeight_(rwfpsf.roughnessHeight_),
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roughnessConstant_(rwfpsf.roughnessConstant_),
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roughnessFudgeFactor_(rwfpsf.roughnessFudgeFactor_)
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mutURoughWallFunctionFvPatchScalarField(rwfpsf)
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{}
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@ -270,44 +93,10 @@ mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField
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const DimensionedField<scalar, volMesh>& iF
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)
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:
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mutWallFunctionFvPatchScalarField(rwfpsf, iF),
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roughnessHeight_(rwfpsf.roughnessHeight_),
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roughnessConstant_(rwfpsf.roughnessConstant_),
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roughnessFudgeFactor_(rwfpsf.roughnessFudgeFactor_)
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mutURoughWallFunctionFvPatchScalarField(rwfpsf, iF)
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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tmp<scalarField>
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mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField::yPlus() const
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{
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const label patchI = patch().index();
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const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
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const fvPatchVectorField& Uw = rasModel.U().boundaryField()[patchI];
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const scalarField magUp = mag(Uw.patchInternalField() - Uw);
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return calcYPlus(magUp);
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}
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void mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField::write
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(
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Ostream& os
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) const
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{
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fixedValueFvPatchScalarField::write(os);
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writeLocalEntries(os);
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os.writeKeyword("roughnessHeight")
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<< roughnessHeight_ << token::END_STATEMENT << nl;
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os.writeKeyword("roughnessConstant")
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<< roughnessConstant_ << token::END_STATEMENT << nl;
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os.writeKeyword("roughnessFudgeFactor")
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<< roughnessFudgeFactor_ << token::END_STATEMENT << nl;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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makePatchTypeField
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@ -26,7 +26,9 @@ Class
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mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField
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Description
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Wall function boundary condition for rough walls
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This boundary condition is the same as mutURoughWallFunction. We will simply
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derive from mutURoughWallFunctionFvPatchScalarField to enable backward
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compatibility.
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SourceFiles
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mutSpalartAllamarasStandardWallFunctionFvPatchScalarField.C
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@ -36,7 +38,7 @@ SourceFiles
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#ifndef compressibleMutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField_H
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#define compressibleMutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField_H
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#include "mutWallFunctionFvPatchScalarField.H"
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#include "mutURoughWallFunctionFvPatchScalarField.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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@ -53,33 +55,8 @@ Class mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField Declaration
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class mutSpalartAllmarasStandardRoughWallFunctionFvPatchScalarField
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:
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public mutWallFunctionFvPatchScalarField
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public mutURoughWallFunctionFvPatchScalarField
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{
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protected:
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// Protected data
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// Roughness parameters
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//- Height
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scalar roughnessHeight_;
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//- Constant
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scalar roughnessConstant_;
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//- Scale factor
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scalar roughnessFudgeFactor_;
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// Protected member functions
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//- Calculate yPLus
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virtual tmp<scalarField> calcYPlus(const scalarField& magUp) const;
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//- Calculate the turbulence viscosity
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virtual tmp<scalarField> calcMut() const;
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public:
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//- Runtime type information
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@ -154,60 +131,6 @@ public:
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)
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);
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}
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// Member functions
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// Access
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//- Return the roughness height scale
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const scalar& roughnessHeight() const
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{
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return roughnessHeight_;
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}
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//- Return reference to the roughness height to allow adjustment
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scalar& roughnessHeight()
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{
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return roughnessHeight_;
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}
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//- Return the roughness constant scale
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const scalar& roughnessConstant() const
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{
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return roughnessConstant_;
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}
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//- Return reference to the roughness constant to allow adjustment
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scalar& roughnessConstant()
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{
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return roughnessConstant_;
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}
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//- Return the roughness scale factor
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const scalar& roughnessFudgeFactor() const
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{
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return roughnessFudgeFactor_;
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}
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//- Return reference to the roughness scale factor to allow
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// adjustment
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scalar& roughnessFudgeFactor()
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{
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return roughnessFudgeFactor_;
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}
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// Evaluation functions
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//- Calculate and return the yPlus at the boundary
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virtual tmp<scalarField> yPlus() const;
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// I-O
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//- Write
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virtual void write(Ostream& os) const;
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};
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@ -38,77 +38,6 @@ namespace compressible
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namespace RASModels
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{
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// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
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tmp<scalarField>
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mutSpalartAllmarasStandardWallFunctionFvPatchScalarField::calcYPlus
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(
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const scalarField& magUp
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) const
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{
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const label patchI = patch().index();
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const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
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const scalarField& y = rasModel.y()[patchI];
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const fvPatchScalarField& rhow = rasModel.rho().boundaryField()[patchI];
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const fvPatchScalarField& muw = rasModel.mu().boundaryField()[patchI];
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tmp<scalarField> tyPlus(new scalarField(patch().size(), 0.0));
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scalarField& yPlus = tyPlus();
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forAll(yPlus, faceI)
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{
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scalar kappaRe = kappa_*magUp[faceI]*y[faceI]/(muw[faceI]/rhow[faceI]);
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scalar yp = yPlusLam_;
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scalar ryPlusLam = 1.0/yp;
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int iter = 0;
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scalar yPlusLast = 0.0;
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do
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{
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yPlusLast = yp;
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yp = (kappaRe + yp)/(1.0 + log(E_*yp));
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} while (mag(ryPlusLam*(yp - yPlusLast)) > 0.01 && ++iter < 10);
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yPlus[faceI] = max(0.0, yp);
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}
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return tyPlus;
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}
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tmp<scalarField>
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mutSpalartAllmarasStandardWallFunctionFvPatchScalarField::calcMut() const
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{
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const label patchI = patch().index();
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const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
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const fvPatchVectorField& Uw = rasModel.U().boundaryField()[patchI];
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const scalarField magUp = mag(Uw.patchInternalField() - Uw);
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const fvPatchScalarField& muw = rasModel.mu().boundaryField()[patchI];
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tmp<scalarField> tyPlus = calcYPlus(magUp);
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scalarField& yPlus = tyPlus();
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tmp<scalarField> tmutw(new scalarField(patch().size(), 0.0));
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scalarField& mutw = tmutw();
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forAll(yPlus, faceI)
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{
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if (yPlus[faceI] > yPlusLam_)
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{
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mutw[faceI] =
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muw[faceI]*(yPlus[faceI]*kappa_/log(E_*yPlus[faceI]) - 1.0);
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}
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}
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return tmutw;
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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mutSpalartAllmarasStandardWallFunctionFvPatchScalarField::
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@ -118,7 +47,19 @@ mutSpalartAllmarasStandardWallFunctionFvPatchScalarField
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const DimensionedField<scalar, volMesh>& iF
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)
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:
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mutWallFunctionFvPatchScalarField(p, iF)
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mutUWallFunctionFvPatchScalarField(p, iF)
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{}
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mutSpalartAllmarasStandardWallFunctionFvPatchScalarField::
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mutSpalartAllmarasStandardWallFunctionFvPatchScalarField
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(
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const fvPatch& p,
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const DimensionedField<scalar, volMesh>& iF,
|
||||
const dictionary& dict
|
||||
)
|
||||
:
|
||||
mutUWallFunctionFvPatchScalarField(p, iF, dict)
|
||||
{}
|
||||
|
||||
|
||||
|
|
@ -131,19 +72,7 @@ mutSpalartAllmarasStandardWallFunctionFvPatchScalarField
|
|||
const fvPatchFieldMapper& mapper
|
||||
)
|
||||
:
|
||||
mutWallFunctionFvPatchScalarField(ptf, p, iF, mapper)
|
||||
{}
|
||||
|
||||
|
||||
mutSpalartAllmarasStandardWallFunctionFvPatchScalarField::
|
||||
mutSpalartAllmarasStandardWallFunctionFvPatchScalarField
|
||||
(
|
||||
const fvPatch& p,
|
||||
const DimensionedField<scalar, volMesh>& iF,
|
||||
const dictionary& dict
|
||||
)
|
||||
:
|
||||
mutWallFunctionFvPatchScalarField(p, iF, dict)
|
||||
mutUWallFunctionFvPatchScalarField(ptf, p, iF, mapper)
|
||||
{}
|
||||
|
||||
|
||||
|
|
@ -153,7 +82,7 @@ mutSpalartAllmarasStandardWallFunctionFvPatchScalarField
|
|||
const mutSpalartAllmarasStandardWallFunctionFvPatchScalarField& sawfpsf
|
||||
)
|
||||
:
|
||||
mutWallFunctionFvPatchScalarField(sawfpsf)
|
||||
mutUWallFunctionFvPatchScalarField(sawfpsf)
|
||||
{}
|
||||
|
||||
|
||||
|
|
@ -164,37 +93,10 @@ mutSpalartAllmarasStandardWallFunctionFvPatchScalarField
|
|||
const DimensionedField<scalar, volMesh>& iF
|
||||
)
|
||||
:
|
||||
mutWallFunctionFvPatchScalarField(sawfpsf, iF)
|
||||
mutUWallFunctionFvPatchScalarField(sawfpsf, iF)
|
||||
{}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
|
||||
|
||||
tmp<scalarField>
|
||||
mutSpalartAllmarasStandardWallFunctionFvPatchScalarField::yPlus() const
|
||||
{
|
||||
const label patchI = patch().index();
|
||||
const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
|
||||
const fvPatchVectorField& Uw = rasModel.U().boundaryField()[patchI];
|
||||
const scalarField magUp = mag(Uw.patchInternalField() - Uw);
|
||||
|
||||
return calcYPlus(magUp);
|
||||
}
|
||||
|
||||
|
||||
void mutSpalartAllmarasStandardWallFunctionFvPatchScalarField::write
|
||||
(
|
||||
Ostream& os
|
||||
) const
|
||||
{
|
||||
fvPatchField<scalar>::write(os);
|
||||
writeLocalEntries(os);
|
||||
writeEntry("value", os);
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
makePatchTypeField
|
||||
(
|
||||
fvPatchScalarField,
|
||||
|
|
|
|||
|
|
@ -26,7 +26,9 @@ Class
|
|||
mutSpalartAllmarasStandardWallFunctionFvPatchScalarField
|
||||
|
||||
Description
|
||||
Wall function boundary condition for walls
|
||||
This boundary condition is the same as mutUWallFunction. We will simply
|
||||
derive from nutUWallFunctionFvPatchScalarField to enable backward
|
||||
compatibility.
|
||||
|
||||
SourceFiles
|
||||
mutSpalartAllmarasStandardWallFunctionFvPatchScalarField.C
|
||||
|
|
@ -36,7 +38,7 @@ SourceFiles
|
|||
#ifndef compressibleMutSpalartAllmarasStandardWallFunctionFvPatchScalarField_H
|
||||
#define compressibleMutSpalartAllmarasStandardWallFunctionFvPatchScalarField_H
|
||||
|
||||
#include "mutWallFunctionFvPatchScalarField.H"
|
||||
#include "mutUWallFunctionFvPatchScalarField.H"
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
|
|
@ -53,19 +55,8 @@ namespace RASModels
|
|||
|
||||
class mutSpalartAllmarasStandardWallFunctionFvPatchScalarField
|
||||
:
|
||||
public mutWallFunctionFvPatchScalarField
|
||||
public mutUWallFunctionFvPatchScalarField
|
||||
{
|
||||
protected:
|
||||
|
||||
// Protected member functions
|
||||
|
||||
//- Calculate yPLus
|
||||
virtual tmp<scalarField> calcYPlus(const scalarField& magUp) const;
|
||||
|
||||
//- Calculate the turbulence viscosity
|
||||
virtual tmp<scalarField> calcMut() const;
|
||||
|
||||
|
||||
public:
|
||||
|
||||
//- Runtime type information
|
||||
|
|
@ -140,20 +131,6 @@ public:
|
|||
)
|
||||
);
|
||||
}
|
||||
|
||||
|
||||
// Member functions
|
||||
|
||||
// Evaluation functions
|
||||
|
||||
//- Calculate and return the yPlus at the boundary
|
||||
virtual tmp<scalarField> yPlus() const;
|
||||
|
||||
|
||||
// I-O
|
||||
|
||||
//- Write
|
||||
virtual void write(Ostream& os) const;
|
||||
};
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -40,24 +40,46 @@ namespace RASModels
|
|||
|
||||
// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
|
||||
|
||||
tmp<scalarField>
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField::calcMut() const
|
||||
{
|
||||
const label patchI = patch().index();
|
||||
|
||||
const turbulenceModel& turbModel =
|
||||
db().lookupObject<turbulenceModel>("turbulenceModel");
|
||||
|
||||
const fvPatchVectorField& Uw = turbModel.U().boundaryField()[patchI];
|
||||
const scalarField magGradU = mag(Uw.snGrad());
|
||||
const scalarField& rhow = turbModel.rho().boundaryField()[patchI];
|
||||
const scalarField& muw = turbModel.mu().boundaryField()[patchI];
|
||||
|
||||
return max
|
||||
(
|
||||
0.0,
|
||||
rhow*sqr(calcUTau(magGradU))/(magGradU + ROOTVSMALL) - muw
|
||||
);
|
||||
}
|
||||
|
||||
|
||||
tmp<scalarField> mutSpalartAllmarasWallFunctionFvPatchScalarField::calcUTau
|
||||
(
|
||||
const scalarField& magGradU
|
||||
) const
|
||||
{
|
||||
const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
|
||||
const scalarField& y = rasModel.y()[patch().index()];
|
||||
const label patchI = patch().index();
|
||||
|
||||
const turbulenceModel& turbModel =
|
||||
db().lookupObject<turbulenceModel>("turbulenceModel");
|
||||
|
||||
const scalarField& y = turbModel.y()[patchI];
|
||||
|
||||
const fvPatchVectorField& Uw =
|
||||
rasModel.U().boundaryField()[patch().index()];
|
||||
turbModel.U().boundaryField()[patchI];
|
||||
const scalarField magUp = mag(Uw.patchInternalField() - Uw);
|
||||
|
||||
scalarField magUp = mag(Uw.patchInternalField() - Uw);
|
||||
const fvPatchScalarField& rhow = turbModel.rho().boundaryField()[patchI];
|
||||
|
||||
const fvPatchScalarField& rhow =
|
||||
rasModel.rho().boundaryField()[patch().index()];
|
||||
|
||||
const fvPatchScalarField& muw =
|
||||
rasModel.mu().boundaryField()[patch().index()];
|
||||
const fvPatchScalarField& muw = turbModel.mu().boundaryField()[patchI];
|
||||
const scalarField& mutw = *this;
|
||||
|
||||
tmp<scalarField> tuTau(new scalarField(patch().size(), 0.0));
|
||||
|
|
@ -65,32 +87,32 @@ tmp<scalarField> mutSpalartAllmarasWallFunctionFvPatchScalarField::calcUTau
|
|||
|
||||
forAll(mutw, faceI)
|
||||
{
|
||||
scalar magUpara = magUp[faceI];
|
||||
const scalar& magUpara = magUp[faceI];
|
||||
|
||||
scalar ut =
|
||||
sqrt((mutw[faceI] + muw[faceI])*magGradU[faceI]/rhow[faceI]);
|
||||
|
||||
if (ut > VSMALL)
|
||||
{
|
||||
int iter = 0;
|
||||
label iter = 0;
|
||||
scalar err = GREAT;
|
||||
|
||||
do
|
||||
{
|
||||
scalar kUu = min(kappa_*magUpara/ut, 50);
|
||||
scalar fkUu = exp(kUu) - 1 - kUu*(1 + 0.5*kUu);
|
||||
const scalar kUu = min(kappa_*magUpara/ut, 50);
|
||||
const scalar fkUu = exp(kUu) - 1 - kUu*(1 + 0.5*kUu);
|
||||
|
||||
scalar f =
|
||||
const scalar f =
|
||||
- ut*y[faceI]/(muw[faceI]/rhow[faceI])
|
||||
+ magUpara/ut
|
||||
+ 1/E_*(fkUu - 1.0/6.0*kUu*sqr(kUu));
|
||||
|
||||
scalar df =
|
||||
const scalar df =
|
||||
y[faceI]/(muw[faceI]/rhow[faceI])
|
||||
+ magUpara/sqr(ut)
|
||||
+ 1/E_*kUu*fkUu/ut;
|
||||
|
||||
scalar uTauNew = ut + f/df;
|
||||
const scalar uTauNew = ut + f/df;
|
||||
err = mag((ut - uTauNew)/ut);
|
||||
ut = uTauNew;
|
||||
|
||||
|
|
@ -104,25 +126,6 @@ tmp<scalarField> mutSpalartAllmarasWallFunctionFvPatchScalarField::calcUTau
|
|||
}
|
||||
|
||||
|
||||
tmp<scalarField>
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField::calcMut() const
|
||||
{
|
||||
const label patchI = patch().index();
|
||||
|
||||
const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
|
||||
const fvPatchVectorField& Uw = rasModel.U().boundaryField()[patchI];
|
||||
const scalarField magGradU = mag(Uw.snGrad());
|
||||
const scalarField& rhow = rasModel.rho().boundaryField()[patchI];
|
||||
const scalarField& muw = rasModel.mu().boundaryField()[patchI];
|
||||
|
||||
return max
|
||||
(
|
||||
scalar(0),
|
||||
rhow*sqr(calcUTau(magGradU))/(magGradU + ROOTVSMALL) - muw
|
||||
);
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
||||
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField::
|
||||
|
|
@ -136,6 +139,18 @@ mutSpalartAllmarasWallFunctionFvPatchScalarField
|
|||
{}
|
||||
|
||||
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField::
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField
|
||||
(
|
||||
const fvPatch& p,
|
||||
const DimensionedField<scalar, volMesh>& iF,
|
||||
const dictionary& dict
|
||||
)
|
||||
:
|
||||
mutWallFunctionFvPatchScalarField(p, iF, dict)
|
||||
{}
|
||||
|
||||
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField::
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField
|
||||
(
|
||||
|
|
@ -149,18 +164,6 @@ mutSpalartAllmarasWallFunctionFvPatchScalarField
|
|||
{}
|
||||
|
||||
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField::
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField
|
||||
(
|
||||
const fvPatch& p,
|
||||
const DimensionedField<scalar, volMesh>& iF,
|
||||
const dictionary& dict
|
||||
)
|
||||
:
|
||||
mutWallFunctionFvPatchScalarField(p, iF, dict)
|
||||
{}
|
||||
|
||||
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField::
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField
|
||||
(
|
||||
|
|
@ -189,30 +192,25 @@ mutSpalartAllmarasWallFunctionFvPatchScalarField::yPlus() const
|
|||
{
|
||||
const label patchI = patch().index();
|
||||
|
||||
const RASModel& rasModel = db().lookupObject<RASModel>("RASProperties");
|
||||
const scalarField& y = rasModel.y()[patchI];
|
||||
const fvPatchVectorField& Uw = rasModel.U().boundaryField()[patchI];
|
||||
const scalarField& rhow = rasModel.rho().boundaryField()[patchI];
|
||||
const scalarField& muw = rasModel.mu().boundaryField()[patchI];
|
||||
const turbulenceModel& turbModel =
|
||||
db().lookupObject<turbulenceModel>("turbulenceModel");
|
||||
|
||||
const scalarField& y = turbModel.y()[patchI];
|
||||
const fvPatchVectorField& Uw = turbModel.U().boundaryField()[patchI];
|
||||
const scalarField& rhow = turbModel.rho().boundaryField()[patchI];
|
||||
const scalarField& muw = turbModel.mu().boundaryField()[patchI];
|
||||
|
||||
return y*calcUTau(mag(Uw.snGrad()))/(muw/rhow);
|
||||
}
|
||||
|
||||
|
||||
void mutSpalartAllmarasWallFunctionFvPatchScalarField::write
|
||||
(
|
||||
Ostream& os
|
||||
) const
|
||||
{
|
||||
fvPatchField<scalar>::write(os);
|
||||
writeLocalEntries(os);
|
||||
writeEntry("value", os);
|
||||
}
|
||||
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
makePatchTypeField(fvPatchScalarField, mutSpalartAllmarasWallFunctionFvPatchScalarField);
|
||||
makePatchTypeField
|
||||
(
|
||||
fvPatchScalarField,
|
||||
mutSpalartAllmarasWallFunctionFvPatchScalarField
|
||||
);
|
||||
|
||||
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
||||
|
||||
|
|
|
|||
Reference in a new issue