mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-11-28 03:28:01 +00:00
Merge branch 'master' of /home/noisy3/OpenFOAM/OpenFOAM-dev
This commit is contained in:
@ -4,12 +4,24 @@ fvVectorMatrix UbEqn(Ub, Ub.dimensions()*dimVol/dimTime);
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{
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{
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volTensorField gradUaT = fvc::grad(Ua)().T();
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if (kineticTheory.on())
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{
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kineticTheory.solve(gradUaT);
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nuEffa = kineticTheory.mua()/rhoa;
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}
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else // If not using kinetic theory is using Ct model
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{
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nuEffa = sqr(Ct)*nutb + nua;
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}
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volTensorField Rca
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(
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"Rca",
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((2.0/3.0)*I)*(sqr(Ct)*k + nuEffa*tr(gradUaT)) - nuEffa*gradUaT
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);
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if (kineticTheory.on())
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{
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Rca -= ((kineticTheory.lambda()/rhoa)*tr(gradUaT))*tensor(I);
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62
applications/solvers/multiphase/twoPhaseEulerFoam/kEpsilon.H
Normal file
62
applications/solvers/multiphase/twoPhaseEulerFoam/kEpsilon.H
Normal file
@ -0,0 +1,62 @@
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if(turbulence)
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{
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if (mesh.changing())
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{
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y.correct();
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}
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tmp<volTensorField> tgradUb = fvc::grad(Ub);
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volScalarField G = 2*nutb*(tgradUb() && dev(symm(tgradUb())));
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tgradUb.clear();
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#include "wallFunctions.H"
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// Dissipation equation
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fvScalarMatrix epsEqn
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(
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fvm::ddt(beta, epsilon)
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+ fvm::div(phib, epsilon)
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- fvm::laplacian
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(
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alphaEps*nuEffb, epsilon,
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"laplacian(DepsilonEff,epsilon)"
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)
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==
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C1*beta*G*epsilon/k
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- fvm::Sp(C2*beta*epsilon/k, epsilon)
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);
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#include "wallDissipation.H"
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epsEqn.relax();
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epsEqn.solve();
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epsilon.max(dimensionedScalar("zero", epsilon.dimensions(), 1.0e-15));
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// Turbulent kinetic energy equation
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fvScalarMatrix kEqn
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(
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fvm::ddt(beta, k)
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+ fvm::div(phib, k)
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- fvm::laplacian
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(
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alphak*nuEffb, k,
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"laplacian(DkEff,k)"
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)
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==
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beta*G
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- fvm::Sp(beta*epsilon/k, k)
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);
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kEqn.relax();
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kEqn.solve();
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k.max(dimensionedScalar("zero", k.dimensions(), 1.0e-8));
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//- Re-calculate turbulence viscosity
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nutb = Cmu*sqr(k)/epsilon;
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#include "wallViscosity.H"
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}
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nuEffb = nutb + nub;
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@ -102,7 +102,7 @@ Foam::tmp<Foam::volScalarField> Foam::JohnsonJacksonFrictionalStress::muf
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const volScalarField& alpha,
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const dimensionedScalar& alphaMax,
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const volScalarField& pf,
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const volTensorField& D,
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const volSymmTensorField& D,
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const dimensionedScalar& phi
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) const
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{
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@ -93,7 +93,7 @@ public:
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const volScalarField& alpha,
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const dimensionedScalar& alphaMax,
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const volScalarField& pf,
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const volTensorField& D,
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const volSymmTensorField& D,
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const dimensionedScalar& phi
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) const;
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};
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@ -99,7 +99,7 @@ Foam::tmp<Foam::volScalarField> Foam::SchaefferFrictionalStress::muf
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const volScalarField& alpha,
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const dimensionedScalar& alphaMax,
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const volScalarField& pf,
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const volTensorField& D,
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const volSymmTensorField& D,
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const dimensionedScalar& phi
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) const
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{
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@ -124,9 +124,9 @@ Foam::tmp<Foam::volScalarField> Foam::SchaefferFrictionalStress::muf
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volScalarField& muff = tmuf();
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forAll(D, celli)
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forAll (D, celli)
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{
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if (alpha[celli] > alphaMax.value()-5e-2)
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if (alpha[celli] > alphaMax.value() - 5e-2)
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{
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muff[celli] =
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0.5*pf[celli]*sin(phi.value())
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@ -93,7 +93,7 @@ public:
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const volScalarField& alpha,
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const dimensionedScalar& alphaMax,
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const volScalarField& pf,
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const volTensorField& D,
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const volSymmTensorField& D,
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const dimensionedScalar& phi
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) const;
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};
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@ -48,7 +48,7 @@ namespace Foam
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class frictionalStressModel
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{
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// Private Member Functions
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// Private member functions
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//- Disallow default bitwise copy construct
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frictionalStressModel(const frictionalStressModel&);
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@ -127,7 +127,7 @@ public:
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const volScalarField& alpha,
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const dimensionedScalar& alphaMax,
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const volScalarField& pf,
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const volTensorField& D,
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const volSymmTensorField& D,
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const dimensionedScalar& phi
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) const = 0;
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};
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@ -56,12 +56,13 @@ Foam::kineticTheoryModel::kineticTheoryModel
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"kineticTheoryProperties",
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Ua_.time().constant(),
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Ua_.mesh(),
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IOobject::MUST_READ_IF_MODIFIED,
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IOobject::MUST_READ,
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IOobject::NO_WRITE
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)
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),
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kineticTheory_(kineticTheoryProperties_.lookup("kineticTheory")),
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equilibrium_(kineticTheoryProperties_.lookup("equilibrium")),
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viscosityModel_
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(
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kineticTheoryModels::viscosityModel::New
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@ -192,24 +193,19 @@ Foam::kineticTheoryModel::~kineticTheoryModel()
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void Foam::kineticTheoryModel::solve()
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void Foam::kineticTheoryModel::solve(const volTensorField& gradUat)
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{
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if (!kineticTheory_)
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{
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return;
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}
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word scheme("div(phi,Theta)");
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volScalarField alpha = alpha_;
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alpha.max(1.0e-6);
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const scalar sqrtPi = sqrt(constant::mathematical::pi);
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surfaceScalarField phi = 1.5*rhoa_*phia_*fvc::interpolate(alpha_);
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volTensorField dU = fvc::grad(Ua_);
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volTensorField dUT = dU.T();
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volTensorField D = 0.5*(dU + dUT);
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volTensorField dU = gradUat.T();//fvc::grad(Ua_);
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volSymmTensorField D = symm(dU);
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// NB, drag = K*alpha*beta,
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// (the alpha and beta has been extracted from the drag function for
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@ -220,45 +216,52 @@ void Foam::kineticTheoryModel::solve()
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// Calculating the radial distribution function (solid volume fraction is
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// limited close to the packing limit, but this needs improvements)
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// The solution is higly unstable close to the packing limit.
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gs0_ = radialModel_->g0(min(alpha, alphaMax_-1.0e-2), alphaMax_);
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gs0_ = radialModel_->g0
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(
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min(max(alpha_, 1e-6), alphaMax_ - 0.01),
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alphaMax_
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);
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// particle pressure - coefficient in front of Theta (Eq. 3.22, p. 45)
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volScalarField PsCoeff =
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granularPressureModel_->granularPressureCoeff(alpha_,gs0_,rhoa_,e_ );
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volScalarField PsCoeff = granularPressureModel_->granularPressureCoeff
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(
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alpha_,
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gs0_,
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rhoa_,
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e_
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);
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// 'thermal' conductivity (Table 3.3, p. 49)
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kappa_ = conductivityModel_->kappa(alpha_, Theta_, gs0_, rhoa_, da_, e_);
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// particle viscosity (Table 3.2, p.47)
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mua_ = viscosityModel_->mua(alpha_, Theta_, gs0_, rhoa_, da_, e_);
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dimensionedScalar Tsmall
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(
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"small",
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dimensionSet(0,2,-2,0,0,0,0),
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dimensionSet(0 , 2 ,-2 ,0 , 0, 0, 0),
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1.0e-6
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);
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dimensionedScalar TsmallSqrt = sqrt(Tsmall);
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volScalarField ThetaSqrt = sqrt(Theta_);
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// 'thermal' conductivity (Table 3.3, p. 49)
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kappa_ = conductivityModel_->kappa(alpha, Theta_, gs0_, rhoa_, da_, e_);
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// particle viscosity (Table 3.2, p.47)
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mua_ = viscosityModel_->mua(alpha, Theta_, gs0_, rhoa_, da_, e_);
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// dissipation (Eq. 3.24, p.50)
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volScalarField gammaCoeff =
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12.0*(1.0 - e_*e_)*sqr(alpha)*rhoa_*gs0_*(1.0/da_)
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*ThetaSqrt/sqrtPi;
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12.0*(1.0 - sqr(e_))*sqr(alpha_)*rhoa_*gs0_*(1.0/da_)*ThetaSqrt/sqrtPi;
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// Eq. 3.25, p. 50 Js = J1 - J2
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volScalarField J1 = 3.0*betaPrim;
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volScalarField J2 =
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0.25*sqr(betaPrim)*da_*sqr(Ur)
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/(alpha*rhoa_*sqrtPi*(ThetaSqrt + TsmallSqrt));
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/(max(alpha_, 1e-6)*rhoa_*sqrtPi*(ThetaSqrt + TsmallSqrt));
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// bulk viscosity p. 45 (Lun et al. 1984).
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lambda_ = (4.0/3.0)*sqr(alpha_)*rhoa_*da_*gs0_*(1.0+e_)*ThetaSqrt/sqrtPi;
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// stress tensor, Definitions, Table 3.1, p. 43
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volTensorField tau = 2.0*mua_*D + (lambda_ - (2.0/3.0)*mua_)*tr(D)*I;
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volSymmTensorField tau = 2.0*mua_*D + (lambda_ - (2.0/3.0)*mua_)*tr(D)*I;
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if (!equilibrium_)
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{
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@ -268,8 +271,8 @@ void Foam::kineticTheoryModel::solve()
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// wrong sign infront of laplacian
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fvScalarMatrix ThetaEqn
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(
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fvm::ddt(1.5*alpha*rhoa_, Theta_)
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+ fvm::div(phi, Theta_, scheme)
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fvm::ddt(1.5*alpha_*rhoa_, Theta_)
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+ fvm::div(phi, Theta_, "div(phi,Theta)")
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==
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fvm::SuSp(-((PsCoeff*I) && dU), Theta_)
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+ (tau && dU)
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@ -290,33 +293,31 @@ void Foam::kineticTheoryModel::solve()
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volScalarField K3 = 0.5*da_*rhoa_*
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(
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(sqrtPi/(3.0*(3.0-e_)))
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*(1.0 + 0.4*(1.0 + e_)*(3.0*e_ - 1.0)*alpha*gs0_)
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+ 1.6*alpha*gs0_*(1.0 + e_)/sqrtPi
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*(1.0 + 0.4*(1.0 + e_)*(3.0*e_ - 1.0)*alpha_*gs0_)
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+1.6*alpha_*gs0_*(1.0 + e_)/sqrtPi
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);
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volScalarField K2 =
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4.0*da_*rhoa_*(1.0 + e_)*alpha*gs0_/(3.0*sqrtPi) - 2.0*K3/3.0;
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4.0*da_*rhoa_*(1.0 + e_)*alpha_*gs0_/(3.0*sqrtPi) - 2.0*K3/3.0;
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volScalarField K4 = 12.0*(1.0 - e_*e_)*rhoa_*gs0_/(da_*sqrtPi);
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volScalarField K4 = 12.0*(1.0 - sqr(e_))*rhoa_*gs0_/(da_*sqrtPi);
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volScalarField trD = tr(D);
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volTensorField D2 = D & D;
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volScalarField tr2D = trD*trD;
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volScalarField trD2 = tr(D2);
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volScalarField tr2D = sqr(trD);
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volScalarField trD2 = tr(D & D);
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volScalarField t1 = K1*alpha + rhoa_;
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volScalarField t1 = K1*alpha_ + rhoa_;
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volScalarField l1 = -t1*trD;
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volScalarField l2 = sqr(t1)*tr2D;
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volScalarField l3 = 4.0*K4*alpha*(2.0*K3*trD2 + K2*tr2D);
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volScalarField l3 = 4.0*K4*max(alpha_, 1e-6)*(2.0*K3*trD2 + K2*tr2D);
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Theta_ = sqr((l1 + sqrt(l2 + l3))/(2.0*(alpha + 1.0e-4)*K4));
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Theta_ = sqr((l1 + sqrt(l2 + l3))/(2.0*(alpha_ + 1.0e-4)*K4));
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}
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Theta_.max(1.0e-15);
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Theta_.min(1.0e+3);
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volScalarField pf =
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frictionalStressModel_->frictionalPressure
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volScalarField pf = frictionalStressModel_->frictionalPressure
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(
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alpha_,
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alphaMinFriction_,
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@ -344,13 +345,11 @@ void Foam::kineticTheoryModel::solve()
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phi_
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);
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// add frictional stress for alpha > alphaMinFriction
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mua_ = viscosityModel_->mua(alpha, Theta_, gs0_, rhoa_, da_, e_) + muf;
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// add frictional stress
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mua_ += muf;
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mua_.min(1.0e+2);
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mua_.max(0.0);
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lambda_ = (4.0/3.0)*sqr(alpha_)*rhoa_*da_*gs0_*(1.0 + e_)*ThetaSqrt/sqrtPi;
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Info<< "kinTheory: max(Theta) = " << max(Theta_).value() << endl;
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volScalarField ktn = mua_/rhoa_;
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@ -156,7 +156,7 @@ public:
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// Member Functions
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void solve();
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void solve(const volTensorField& gradUat);
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bool on() const
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{
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@ -5,6 +5,9 @@
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volScalarField rUaA = 1.0/UaEqn.A();
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volScalarField rUbA = 1.0/UbEqn.A();
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phia == (fvc::interpolate(Ua) & mesh.Sf());
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phib == (fvc::interpolate(Ub) & mesh.Sf());
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rUaAf = fvc::interpolate(rUaA);
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surfaceScalarField rUbAf = fvc::interpolate(rUbA);
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@ -47,11 +50,10 @@
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surfaceScalarField Dp
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||||
(
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"(rho*(1|A(U)))",
|
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alphaf*rUaAf/rhoa + betaf*rUbAf/rhob
|
||||
"(rho*(1|A(U)))", alphaf*rUaAf/rhoa + betaf*rUbAf/rhob
|
||||
);
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||||
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for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
|
||||
for(int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
|
||||
{
|
||||
fvScalarMatrix pEqn
|
||||
(
|
||||
|
||||
@ -92,11 +92,6 @@ int main(int argc, char *argv[])
|
||||
|
||||
#include "kEpsilon.H"
|
||||
|
||||
if (kineticTheory.on())
|
||||
{
|
||||
kineticTheory.solve();
|
||||
nuEffa += kineticTheory.mua()/rhoa;
|
||||
}
|
||||
#include "write.H"
|
||||
|
||||
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
|
||||
|
||||
@ -7,9 +7,9 @@ then
|
||||
case "$ParaView_VERSION" in
|
||||
3* | git)
|
||||
|
||||
if [ ! -d "${PV_PLUGIN_PATH}" ]
|
||||
if [ ! -n "${PV_PLUGIN_PATH}" ]
|
||||
then
|
||||
echo "$0 : PV_PLUGIN_PATH not a valid directory."
|
||||
echo "$0 : PV_PLUGIN_PATH not a valid."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
|
||||
Reference in New Issue
Block a user