openfoam/applications/solvers/basic/potentialFoam/createFields.H
Mark Olesen 31b172217c ENH: support predicate checks for argList (similar to dictionary methods)
- Favour use of argList methods that are more similar to dictionary
  method names with the aim of reducing the cognitive load.

  * Silently deprecate two-parameter get() method in favour of the
    more familiar getOrDefault.
  * Silently deprecate opt() method in favour of get()

  These may be verbosely deprecated in future versions.
2020-06-02 13:51:18 +02:00

119 lines
2.2 KiB
C

Info<< "Reading velocity field U\n" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);
// Initialise the velocity internal field to zero
U = dimensionedVector(U.dimensions(), Zero);
surfaceScalarField phi
(
IOobject
(
"phi",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
fvc::flux(U)
);
if (args.found("initialiseUBCs"))
{
U.correctBoundaryConditions();
phi = fvc::flux(U);
}
// Construct a pressure field
// If it is available read it otherwise construct from the velocity BCs
// converting fixed-value BCs to zero-gradient and vice versa.
// Allow override from command-line -pName option
const word pName = args.getOrDefault<word>("pName", "p");
// Infer the pressure BCs from the velocity
wordList pBCTypes
(
U.boundaryField().size(),
fixedValueFvPatchScalarField::typeName
);
forAll(U.boundaryField(), patchi)
{
if (U.boundaryField()[patchi].fixesValue())
{
pBCTypes[patchi] = zeroGradientFvPatchScalarField::typeName;
}
}
Info<< "Constructing pressure field " << pName << nl << endl;
volScalarField p
(
IOobject
(
pName,
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::NO_WRITE
),
mesh,
dimensionedScalar(sqr(dimVelocity), Zero),
pBCTypes
);
// Infer the velocity potential BCs from the pressure
wordList PhiBCTypes
(
p.boundaryField().size(),
zeroGradientFvPatchScalarField::typeName
);
forAll(p.boundaryField(), patchi)
{
if (p.boundaryField()[patchi].fixesValue())
{
PhiBCTypes[patchi] = fixedValueFvPatchScalarField::typeName;
}
}
Info<< "Constructing velocity potential field Phi\n" << endl;
volScalarField Phi
(
IOobject
(
"Phi",
runTime.timeName(),
mesh,
IOobject::READ_IF_PRESENT,
IOobject::NO_WRITE
),
mesh,
dimensionedScalar(dimLength*dimVelocity, Zero),
PhiBCTypes
);
label PhiRefCell = 0;
scalar PhiRefValue = 0;
setRefCell
(
Phi,
potentialFlow.dict(),
PhiRefCell,
PhiRefValue
);
mesh.setFluxRequired(Phi.name());
#include "createMRF.H"