Updates to compressible SRF and MRF enthalpy equation
Conflicts: applications/solvers/compressible/steadyCompressibleFoam/hEqn.H
This commit is contained in:
Hrvoje Jasak
Dominik Christ
parent
dc6d3f61dc
commit
8e56da0041
33 changed files with 186 additions and 6838 deletions
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@ -9,11 +9,25 @@
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// Create rotational velocity (= omega x r)
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Urot = U - Urel;
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// Calculate face velocity from absolute flux
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surfaceScalarField rhof = fvc::interpolate(rho);
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surfaceScalarField phiAbs
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(
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"phiAbs",
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phi
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);
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mrfZones.absoluteFlux(rhof, phiAbs);
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surfaceScalarField faceU("faceU", phiAbs/rhof);
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fvScalarMatrix iEqn
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(
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fvm::ddt(rho, i)
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+ fvm::div(phi, i)
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- fvm::laplacian(turbulence->alphaEff(), i)
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// u & gradP term (steady-state formulation)
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+ fvm::SuSp((fvc::div(faceU, p, "div(U,p)") - fvc::div(faceU)*p)/i, i)
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==
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// Viscous heating: note sign (devRhoReff has a minus in it)
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- (turbulence->devRhoReff() && fvc::grad(Urel))
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@ -85,3 +85,18 @@
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),
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Urel + SRF->U()
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);
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// Create rothalpy, in two steps to preserve boundary conditions
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volScalarField i
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(
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IOobject
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(
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"i",
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runTime.timeName(),
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mesh,
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IOobject::NO_READ,
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IOobject::AUTO_WRITE
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),
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h
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);
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i -= 0.5*magSqr(SRF->U());
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@ -1,33 +0,0 @@
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{
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// Solve the enthalpy equation
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T.storePrevIter();
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surfaceScalarField faceU = phi/fvc::interpolate(rho);
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fvScalarMatrix hEqn
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(
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fvm::ddt(rho, h)
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+ fvm::div(phi, h)
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- fvm::laplacian(turbulence->alphaEff(), h)
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==
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// ddt(p) term removed: steady-state. HJ, 27/Apr/2010
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fvc::div(faceU, p, "div(U,p)")
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- p*fvc::div(faceU)
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// Viscous heating: note sign (devRhoReff has a minus in it)
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- (turbulence->devRhoReff() && fvc::grad(Urel))
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);
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hEqn.relax();
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eqnResidual = hEqn.solve().initialResidual();
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maxResidual = max(eqnResidual, maxResidual);
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// Bound the enthalpy using TMin and TMax
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volScalarField Cp = thermo.Cp();
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h = Foam::min(h, TMax*Cp);
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h = Foam::max(h, TMin*Cp);
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h.correctBoundaryConditions();
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thermo.correct();
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}
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@ -0,0 +1,47 @@
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{
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// Solve the enthalpy equation
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T.storePrevIter();
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// Calculate face velocity from flux
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surfaceScalarField faceU
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(
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"faceU",
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phi/fvc::interpolate(rho) + (SRF->faceU() & mesh.Sf())
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);
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fvScalarMatrix iEqn
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(
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fvm::ddt(rho, i)
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+ fvm::div(phi, i)
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- fvm::laplacian(turbulence->alphaEff(), i)
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// u & gradP term (steady-state formulation)
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+ fvm::SuSp((fvc::div(faceU, p, "div(U,p)") - p*fvc::div(faceU))/i, i)
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==
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// ddt(p) term removed: steady-state. HJ, 27/Apr/2010
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// Viscous heating: note sign (devRhoReff has a minus in it)
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- (turbulence->devRhoReff() && fvc::grad(Urel))
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);
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iEqn.relax();
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eqnResidual = iEqn.solve().initialResidual();
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maxResidual = max(eqnResidual, maxResidual);
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// Calculate enthalpy out of rothalpy
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volVectorField Urot("Urot", SRF->U());
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h = i + 0.5*magSqr(Urot);
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h.correctBoundaryConditions();
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// Bound the enthalpy using TMin and TMax
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volScalarField Cp = thermo.Cp();
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h = Foam::min(h, TMax*Cp);
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h = Foam::max(h, TMin*Cp);
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h.correctBoundaryConditions();
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// Re-initialise rothalpy based on limited enthalpy
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i = h - 0.5*magSqr(Urot);
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thermo.correct();
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}
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@ -65,10 +65,9 @@ int main(int argc, char *argv[])
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# include "initConvergenceCheck.H"
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# include "UEqn.H"
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# include "iEqn.H"
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# include "pEqn.H"
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# include "hEqn.H"
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# include "rhoFromP.H"
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// Correct turbulence
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@ -208,6 +208,26 @@ Foam::tmp<Foam::volVectorField> Foam::SRF::SRFModel::U() const
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}
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Foam::tmp<Foam::surfaceVectorField> Foam::SRF::SRFModel::faceU() const
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{
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return tmp<surfaceVectorField>
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(
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new surfaceVectorField
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(
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IOobject
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(
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"faceUsrf",
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mesh_.time().timeName(),
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mesh_,
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IOobject::NO_READ,
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IOobject::NO_WRITE
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),
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omega_ ^ (mesh_.Cf() - axis_*(axis_ & mesh_.Cf()))
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)
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);
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}
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Foam::tmp<Foam::volVectorField> Foam::SRF::SRFModel::Uabs() const
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{
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const volVectorField Usrf = U();
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@ -171,6 +171,9 @@ public:
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//- Return velocity of SRF for complete mesh
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tmp<volVectorField> U() const;
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//- Return face velocity of SRF for complete mesh
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tmp<surfaceVectorField> faceU() const;
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//- Return absolute velocity for complete mesh
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tmp<volVectorField> Uabs() const;
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};
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@ -27,7 +27,7 @@ deltaT 1;
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writeControl timeStep;
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writeInterval 50;
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writeInterval 200;
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purgeWrite 0;
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@ -42,10 +42,6 @@ divSchemes
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div(phi,i) Gauss upwind;
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div(phid,p) Gauss upwind;
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// div(phi,U) Gauss vanLeerDC;
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// div(phi,h) Gauss vanLeerDC;
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// div(phid,p) Gauss vanLeerDC;
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div(phi,k) Gauss upwind;
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div(phi,epsilon) Gauss upwind;
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div((muEff*dev2(grad(U).T()))) Gauss linear;
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@ -24,8 +24,8 @@ solvers
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minIter 0;
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maxIter 1000;
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tolerance 1e-8;
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relTol 0.001;
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};
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relTol 0.01;
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}
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U
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{
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solver BiCGStab;
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@ -90,11 +90,6 @@ relaxationFactors
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fieldBounds
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{
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// No bounding
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// p 0 1e7;
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// T 0 10000;
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// U 1e6;
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// With bounding
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p 2e4 1e6;
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T 200 500;
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@ -22,24 +22,19 @@ boundaryField
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{
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inlet
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{
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type fixedValue;
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type totalTemperature;
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phi phi;
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rho none;
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psi psi;
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U Uabs;
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gamma 1.4;
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T0 uniform 300;
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value $internalField;
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}
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outlet
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{
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// type zeroGradient;
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type waveTransmissive;
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phi phi;
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rho rho;
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psi psi;
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U Urel;
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gamma 1.4;
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inletOutlet true;
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correctSupercritical false;
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lInf 0.0;
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fieldInf 300;
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type zeroGradient;
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value $internalField;
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}
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@ -16,34 +16,20 @@ FoamFile
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dimensions [0 1 -1 0 0 0 0];
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internalField uniform (234 0 0);
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internalField uniform (100 0 0);
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boundaryField
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{
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inlet
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{
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type SRFVelocity;
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relative yes;
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inletValue uniform (234 0 0);
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value uniform (234 0 0);
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type pressureInletVelocity;
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value uniform (100 0 0);
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}
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outlet
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{
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type inletOutlet;
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inletValue uniform (0 0 0);
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// type waveTransmissive;
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// phi phi;
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// rho rho;
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// psi psi;
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// U U;
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// gamma 1.4;
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// inletOutlet true;
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// correctSupercritical false;
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// lInf 0;
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// fieldInf (0 0 0);
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// value $internalField;
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}
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blade
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@ -52,7 +52,6 @@ boundaryField
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frontAndBack
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{
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type cyclic;
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value uniform 0;
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}
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}
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File diff suppressed because it is too large
Load diff
File diff suppressed because it is too large
Load diff
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@ -58,7 +58,6 @@ boundaryField
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frontAndBack
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{
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type cyclic;
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value uniform 0;
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}
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}
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@ -22,36 +22,20 @@ boundaryField
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{
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inlet
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{
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type zeroGradient;
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// type waveTransmissiveInlet;
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// phi phi;
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// rho rho;
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// psi psi;
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// U Urel;
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// gamma 1.4;
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// inletOutlet false;
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// correctSupercritical false;
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// lInf 0.0;
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// fieldInf 101325;
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// value uniform 101325;
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type totalPressure;
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phi phi;
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rho none;
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psi psi;
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U Uabs;
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gamma 1.4;
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p0 uniform 1.4e5;
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value $internalField;
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}
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outlet
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{
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// type fixedValue;
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type waveTransmissive;
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phi phi;
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rho rho;
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psi psi;
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U Urel;
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gamma 1.4;
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inletOutlet false;
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correctSupercritical true;
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lInf 0.1;
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fieldInf 101325;
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value uniform 101325;
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type fixedValue;
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value $internalField;
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}
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blade
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@ -17,12 +17,10 @@ FoamFile
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SRFModel rpm;
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axis (1 0 0);
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// axis (-1 0 0);
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rpmCoeffs
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{
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rpm 30000;
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// rpm 9600;
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}
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// ************************************************************************* //
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@ -16,6 +16,7 @@ FoamFile
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thermoType hPsiThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
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// name, nMoles, mol weight, CP, Hf, mu, Pr;
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mixture air 1 28.9 1007 0 1.48e-5 0.7;
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// ************************************************************************* //
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@ -20,13 +20,13 @@ startTime 0;
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stopAt endTime;
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endTime 1500;
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endTime 2000;
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deltaT 1;
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writeControl timeStep;
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writeInterval 50;
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writeInterval 200;
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purgeWrite 0;
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@ -19,9 +19,8 @@ ddtSchemes
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default none;
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ddt(rho,Urel) steadyState;
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ddt(rho,h) steadyState;
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// ddt(rho,h) steadyInertial phi rho 1;
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ddt(psi,p) steadyInertial phi rho 0.7;
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ddt(rho,i) steadyState;
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ddt(psi,p) steadyInertial phi rho 0.25;
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ddt(rho,k) steadyState;
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ddt(rho,epsilon) steadyState;
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@ -39,13 +38,9 @@ gradSchemes
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divSchemes
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{
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default none;
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// div(phi,Urel) Gauss upwind;
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// div(phi,h) Gauss upwind;
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// div(phid,p) Gauss upwind;
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div(phi,Urel) Gauss vanLeerDC;
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div(phi,h) Gauss vanLeerDC;
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div(phid,p) Gauss vanLeerDC;
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div(phi,Urel) Gauss upwind;
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div(phi,i) Gauss upwind;
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div(phid,p) Gauss upwind;
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div(phi,k) Gauss upwind;
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div(phi,epsilon) Gauss upwind;
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|
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@ -24,8 +24,8 @@ solvers
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minIter 0;
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maxIter 1000;
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tolerance 1e-8;
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relTol 0.001;
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};
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relTol 0.01;
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}
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Urel
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{
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solver BiCGStab;
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@ -35,8 +35,8 @@ solvers
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maxIter 1000;
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tolerance 1e-8;
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relTol 0.01;
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};
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h
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}
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i
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{
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solver BiCGStab;
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preconditioner DILU;
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@ -45,7 +45,7 @@ solvers
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maxIter 1000;
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tolerance 1e-8;
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relTol 0.01;
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};
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}
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k
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{
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solver BiCGStab;
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@ -54,8 +54,8 @@ solvers
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minIter 0;
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maxIter 1000;
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tolerance 1e-8;
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relTol 0.01;
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};
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relTol 0.0;
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}
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epsilon
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{
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solver BiCGStab;
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@ -64,14 +64,14 @@ solvers
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minIter 0;
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maxIter 1000;
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tolerance 1e-8;
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relTol 0.01;
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};
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relTol 0.0;
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}
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}
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PIMPLE
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{
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nOuterCorrectors 1;
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nCorrectors 3;
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nCorrectors 2;
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nNonOrthogonalCorrectors 0;
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}
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@ -80,24 +80,19 @@ relaxationFactors
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// Note: under-relaxation factors used in wave-transmissive schemes
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Urel 0.5;
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p 0.2;
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h 0.5;
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i 0.1;
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rho 0.5;
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k 0.3;
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epsilon 0.3;
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k 0.2;
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epsilon 0.2;
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}
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fieldBounds
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{
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// No bounding
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// p 0 1e7;
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// T 0 10000;
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// Urel 1e6;
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// With bounding
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p 50 1e6;
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T 20 3000;
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Urel 1000;
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p 2e4 1e6;
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T 200 500;
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Urel 500;
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}
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// ************************************************************************* //
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@ -22,24 +22,19 @@ boundaryField
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{
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inlet
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{
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type fixedValue;
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type totalTemperature;
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phi phi;
|
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rho none;
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psi psi;
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U Uabs;
|
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gamma 1.4;
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T0 uniform 300;
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value $internalField;
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}
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outlet
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{
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// type zeroGradient;
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|
||||
type waveTransmissive;
|
||||
phi phi;
|
||||
rho rho;
|
||||
psi psi;
|
||||
U Urel;
|
||||
gamma 1.4;
|
||||
inletOutlet true;
|
||||
correctSupercritical false;
|
||||
lInf 0.0;
|
||||
fieldInf 300;
|
||||
type zeroGradient;
|
||||
value $internalField;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -16,34 +16,20 @@ FoamFile
|
|||
|
||||
dimensions [0 1 -1 0 0 0 0];
|
||||
|
||||
internalField uniform (234 0 0);
|
||||
internalField uniform (100 0 0);
|
||||
|
||||
boundaryField
|
||||
{
|
||||
inlet
|
||||
{
|
||||
type SRFVelocity;
|
||||
relative yes;
|
||||
inletValue uniform (234 0 0);
|
||||
value uniform (234 0 0);
|
||||
type pressureInletVelocity;
|
||||
value uniform (100 0 0);
|
||||
}
|
||||
|
||||
outlet
|
||||
{
|
||||
type inletOutlet;
|
||||
inletValue uniform (0 0 0);
|
||||
|
||||
// type waveTransmissive;
|
||||
// phi phi;
|
||||
// rho rho;
|
||||
// psi psi;
|
||||
// U U;
|
||||
// gamma 1.4;
|
||||
// inletOutlet true;
|
||||
// correctSupercritical false;
|
||||
// lInf 0;
|
||||
// fieldInf (0 0 0);
|
||||
// value $internalField;
|
||||
}
|
||||
|
||||
blade
|
||||
|
|
|
|||
|
|
@ -52,7 +52,6 @@ boundaryField
|
|||
frontAndBack
|
||||
{
|
||||
type cyclic;
|
||||
value uniform 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -65,7 +65,6 @@ boundaryField
|
|||
frontAndBack
|
||||
{
|
||||
type cyclic;
|
||||
value uniform 100;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load diff
|
|
@ -58,7 +58,6 @@ boundaryField
|
|||
frontAndBack
|
||||
{
|
||||
type cyclic;
|
||||
value uniform 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -22,36 +22,20 @@ boundaryField
|
|||
{
|
||||
inlet
|
||||
{
|
||||
type zeroGradient;
|
||||
|
||||
// type waveTransmissiveInlet;
|
||||
// phi phi;
|
||||
// rho rho;
|
||||
// psi psi;
|
||||
// U Urel;
|
||||
// gamma 1.4;
|
||||
// inletOutlet false;
|
||||
// correctSupercritical false;
|
||||
// lInf 0.0;
|
||||
// fieldInf 101325;
|
||||
// value uniform 101325;
|
||||
type totalPressure;
|
||||
phi phi;
|
||||
rho none;
|
||||
psi psi;
|
||||
U Uabs;
|
||||
gamma 1.4;
|
||||
p0 uniform 1.4e5;
|
||||
value $internalField;
|
||||
}
|
||||
|
||||
outlet
|
||||
{
|
||||
// type fixedValue;
|
||||
|
||||
type waveTransmissive;
|
||||
phi phi;
|
||||
rho rho;
|
||||
psi psi;
|
||||
U Urel;
|
||||
gamma 1.4;
|
||||
inletOutlet false;
|
||||
correctSupercritical true;
|
||||
lInf 0.1;
|
||||
fieldInf 101325;
|
||||
value uniform 101325;
|
||||
type fixedValue;
|
||||
value $internalField;
|
||||
}
|
||||
|
||||
blade
|
||||
|
|
|
|||
|
|
@ -20,7 +20,6 @@ axis (-1 0 0);
|
|||
|
||||
rpmCoeffs
|
||||
{
|
||||
// rpm 15000;
|
||||
rpm 20000;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@ deltaT 1;
|
|||
|
||||
writeControl timeStep;
|
||||
|
||||
writeInterval 50;
|
||||
writeInterval 200;
|
||||
|
||||
purgeWrite 0;
|
||||
|
||||
|
|
|
|||
|
|
@ -19,9 +19,8 @@ ddtSchemes
|
|||
default none;
|
||||
|
||||
ddt(rho,Urel) steadyState;
|
||||
ddt(rho,h) steadyState;
|
||||
// ddt(rho,h) steadyInertial phi rho 1;
|
||||
ddt(psi,p) steadyInertial phi rho 0.8;
|
||||
ddt(rho,i) steadyState;
|
||||
ddt(psi,p) steadyInertial phi rho 0.25;
|
||||
|
||||
ddt(rho,k) steadyState;
|
||||
ddt(rho,epsilon) steadyState;
|
||||
|
|
@ -40,7 +39,7 @@ divSchemes
|
|||
{
|
||||
default none;
|
||||
div(phi,Urel) Gauss upwind;
|
||||
div(phi,h) Gauss upwind;
|
||||
div(phi,i) Gauss upwind;
|
||||
div(phid,p) Gauss upwind;
|
||||
|
||||
div(phi,k) Gauss upwind;
|
||||
|
|
|
|||
|
|
@ -25,7 +25,7 @@ solvers
|
|||
maxIter 1000;
|
||||
tolerance 1e-8;
|
||||
relTol 0.01;
|
||||
};
|
||||
}
|
||||
Urel
|
||||
{
|
||||
solver BiCGStab;
|
||||
|
|
@ -35,8 +35,8 @@ solvers
|
|||
maxIter 1000;
|
||||
tolerance 1e-8;
|
||||
relTol 0.01;
|
||||
};
|
||||
h
|
||||
}
|
||||
i
|
||||
{
|
||||
solver BiCGStab;
|
||||
preconditioner DILU;
|
||||
|
|
@ -45,7 +45,7 @@ solvers
|
|||
maxIter 1000;
|
||||
tolerance 1e-8;
|
||||
relTol 0.01;
|
||||
};
|
||||
}
|
||||
k
|
||||
{
|
||||
solver BiCGStab;
|
||||
|
|
@ -55,7 +55,7 @@ solvers
|
|||
maxIter 1000;
|
||||
tolerance 1e-8;
|
||||
relTol 0.0;
|
||||
};
|
||||
}
|
||||
epsilon
|
||||
{
|
||||
solver BiCGStab;
|
||||
|
|
@ -65,7 +65,7 @@ solvers
|
|||
maxIter 1000;
|
||||
tolerance 1e-8;
|
||||
relTol 0.0;
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
PIMPLE
|
||||
|
|
@ -79,25 +79,20 @@ relaxationFactors
|
|||
{
|
||||
// Note: under-relaxation factors used in wave-transmissive schemes
|
||||
Urel 0.5;
|
||||
p 0.3;
|
||||
h 0.5;
|
||||
p 0.2;
|
||||
i 0.1;
|
||||
rho 0.5;
|
||||
|
||||
k 0.5;
|
||||
epsilon 0.5;
|
||||
k 0.2;
|
||||
epsilon 0.2;
|
||||
}
|
||||
|
||||
fieldBounds
|
||||
{
|
||||
// No bounding
|
||||
// p 0 1e7;
|
||||
// T 0 10000;
|
||||
// Urel 1e6;
|
||||
|
||||
// With bounding
|
||||
p 50 1e6;
|
||||
T 20 3000;
|
||||
Urel 1000;
|
||||
p 2e4 1e6;
|
||||
T 200 500;
|
||||
Urel 500;
|
||||
}
|
||||
|
||||
// ************************************************************************* //
|
||||
|
|
|
|||
Reference in a new issue