UEqn.H
Go to the documentation of this file.
1 // Solve the Momentum equation
2 
3 MRF.correctBoundaryVelocity(U);
4 
5 fvVectorMatrix UEqn
6 (
7  fvm::ddt(U) + fvm::div(phi, U)
8  + MRF.DDt(U)
9  + turbulence->divDevSigma(U)
10  ==
11  fvOptions(U)
12 );
13 
14 UEqn.relax();
15 
16 fvOptions.constrain(UEqn);
17 
18 if (piso.momentumPredictor())
19 {
20  solve(UEqn == -fvc::grad(p));
21 
22  fvOptions.correct(U);
23 }
Foam::fvc::grad
tmp< GeometricField< typename outerProduct< vector, Type >::type, fvPatchField, volMesh >> grad(const GeometricField< Type, fvsPatchField, surfaceMesh > &ssf)
Definition: fvcGrad.C:52
fvOptions
fv::options & fvOptions
Definition: setRegionFluidFields.H:53
MRF
IOMRFZoneList & MRF
Definition: setRegionFluidFields.H:52
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
piso
pisoControl piso(mesh)
phi
phi
Definition: pEqn.H:104
Foam::fvc::ddt
tmp< GeometricField< Type, fvPatchField, volMesh > > ddt(const dimensioned< Type > dt, const fvMesh &mesh)
Definition: fvcDdt.C:45
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
U
U
Definition: pEqn.H:72
UEqn
fvVectorMatrix & UEqn
Definition: UEqn.H:11
Foam::fvVectorMatrix
fvMatrix< vector > fvVectorMatrix
Definition: fvMatricesFwd.H:45
p
volScalarField & p
Definition: createFieldRefs.H:12