UEqn.H
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1 // Solve the Momentum equation
2 
3 MRF.correctBoundaryVelocity(U);
4 
5 tmp<fvVectorMatrix> tUEqn
6 (
7  fvm::ddt(rho, U) + fvm::div(phi, U)
8  + MRF.DDt(rho, U)
9  + turbulence->divDevTau(U)
10  ==
11  fvModels.source(rho, U)
12 );
13 fvVectorMatrix& UEqn = tUEqn.ref();
14 
15 UEqn.relax();
16 
17 fvConstraints.constrain(UEqn);
18 
19 if (pimple.momentumPredictor())
20 {
21  solve
22  (
23  UEqn
24  ==
25  fvc::reconstruct
26  (
27  (
28  - ghf*fvc::snGrad(rho)
29  - fvc::snGrad(p_rgh)
30  )*mesh.magSf()
31  )
32  );
33 
34  fvConstraints.constrain(U);
35  K = 0.5*magSqr(U);
36 }
p_rgh
volScalarField & p_rgh
Definition: setRegionFluidFields.H:25
pimple
pimpleNoLoopControl & pimple
Definition: setRegionFluidFields.H:48
U
U
Definition: pEqn.H:72
MRF
IOMRFZoneList & MRF
Definition: setRegionFluidFields.H:35
solve
solve(UEqn==-fvc::grad(p))
Foam::fvc::div
tmp< GeometricField< Type, fvPatchField, volMesh > > div(const GeometricField< Type, fvsPatchField, surfaceMesh > &ssf)
Definition: fvcDiv.C:47
mesh
fvMesh & mesh
Definition: createMeshesPostProcess.H:9
K
CGAL::Exact_predicates_exact_constructions_kernel K
Definition: CGALTriangulation3DKernel.H:56
Foam::fvc::ddt
tmp< GeometricField< Type, fvPatchField, volMesh > > ddt(const dimensioned< Type > dt, const fvMesh &mesh)
Definition: fvcDdt.C:45
fvConstraints
Foam::fvConstraints & fvConstraints
Definition: setRegionFluidFields.H:37
phi
phi
Definition: correctPhi.H:3
Foam::magSqr
dimensioned< scalar > magSqr(const dimensioned< Type > &)
turbulence
Info<< "Reading field U\"<< endl;volVectorField U(IOobject("U", runTime.timeName(), mesh, IOobject::MUST_READ, IOobject::AUTO_WRITE), mesh);volScalarField rho(IOobject("rho", runTime.timeName(), mesh, IOobject::NO_READ, IOobject::AUTO_WRITE), thermo.rho());volVectorField rhoU(IOobject("rhoU", runTime.timeName(), mesh, IOobject::NO_READ, IOobject::NO_WRITE), rho *U);volScalarField rhoE(IOobject("rhoE", runTime.timeName(), mesh, IOobject::NO_READ, IOobject::NO_WRITE), rho *(e+0.5 *magSqr(U)));surfaceScalarField pos(IOobject("pos", runTime.timeName(), mesh), mesh, dimensionedScalar(dimless, 1.0));surfaceScalarField neg(IOobject("neg", runTime.timeName(), mesh), mesh, dimensionedScalar(dimless, -1.0));surfaceScalarField phi("phi", fvc::flux(rhoU));Info<< "Creating turbulence model\"<< endl;autoPtr< compressible::momentumTransportModel > turbulence(compressible::momentumTransportModel::New(rho, U, phi, thermo))
Definition: createFields.H:94
ghf
const surfaceScalarField & ghf
Definition: setRegionFluidFields.H:30
tUEqn
tmp< fvVectorMatrix > tUEqn(fvm::ddt(rho, U)+fvm::div(phi, U)+MRF.DDt(rho, U)+turbulence->divDevTau(U)==fvModels.source(rho, U))
Foam::fvConstraints::constrain
bool constrain(fvMatrix< Type > &eqn) const
Apply constraints to an equation.
Definition: fvConstraintsTemplates.C:29
fvModels
Foam::fvModels & fvModels
Definition: setRegionFluidFields.H:36
Foam::fvc::reconstruct
tmp< GeometricField< typename outerProduct< vector, Type >::type, fvPatchField, volMesh >> reconstruct(const GeometricField< Type, fvsPatchField, surfaceMesh > &ssf)
Definition: fvcReconstruct.C:54
Foam::fvVectorMatrix
fvMatrix< vector > fvVectorMatrix
Definition: fvMatricesFwd.H:45
Foam::fvc::snGrad
tmp< GeometricField< Type, fvsPatchField, surfaceMesh > > snGrad(const GeometricField< Type, fvPatchField, volMesh > &vf, const word &name)
Definition: fvcSnGrad.C:45