UEqn.H
Go to the documentation of this file.
1  // Momentum predictor
2 
3  MRF.correctBoundaryVelocity(U);
4 
5  tmp<fvVectorMatrix> tUEqn
6  (
7  fvm::div(phi, U)
8  + MRF.DDt(U)
9  + turbulence->divDevSigma(U)
10  ==
11  fvModels.source(U)
12  );
13  fvVectorMatrix& UEqn = tUEqn.ref();
14 
15  UEqn.relax();
16 
17  fvConstraints.constrain(UEqn);
18 
19  if (simple.momentumPredictor())
20  {
21  solve(UEqn == -fvc::grad(p));
22 
23  fvConstraints.constrain(U);
24  }
Foam::fvc::grad
tmp< GeometricField< typename outerProduct< vector, Type >::type, fvPatchField, volMesh >> grad(const GeometricField< Type, fvsPatchField, surfaceMesh > &ssf)
Definition: fvcGrad.C:52
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
fvConstraints
Foam::fvConstraints & fvConstraints
Definition: setRegionFluidFields.H:37
phi
phi
Definition: correctPhi.H:3
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
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::fvVectorMatrix
fvMatrix< vector > fvVectorMatrix
Definition: fvMatricesFwd.H:45
p
volScalarField & p
Definition: createFieldRefs.H:5
simple
simpleControl simple(mesh)