zhyang-dev/openfoam
1
0
Fork 0
mirror of https://develop.openfoam.com/Development/openfoam.git synced 2025-11-28 03:28:01 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ENH: flowRateInletVelocity: require volumeFlowRate or massFlowRate keyword

Browse Source
This commit is contained in:
mattijs
2012-09-20 14:42:48 +01:00
parent dcca9323d1
commit b6c4e144c4
14 changed files with 141 additions and 76 deletions
Download Patch File Download Diff File Expand all files Collapse all files

144
src/finiteVolume/fields/fvPatchFields/derived/flowRateInletVelocity/flowRateInletVelocityFvPatchVectorField.C
View File

@ -40,8 +40,9 @@ flowRateInletVelocityFvPatchVectorField
:
fixedValueFvPatchField<vector>(p, iF),
flowRate_(),
phiName_("phi"),
rhoName_("rho")
volumetric_(false),
rhoName_("rho"),
rhoInlet_(0.0)
{}
@ -56,8 +57,9 @@ flowRateInletVelocityFvPatchVectorField
:
fixedValueFvPatchField<vector>(ptf, p, iF, mapper),
flowRate_(ptf.flowRate_().clone().ptr()),
phiName_(ptf.phiName_),
rhoName_(ptf.rhoName_)
volumetric_(ptf.volumetric_),
rhoName_(ptf.rhoName_),
rhoInlet_(ptf.rhoInlet_)
{}
@ -69,11 +71,52 @@ flowRateInletVelocityFvPatchVectorField
const dictionary& dict
)
:
fixedValueFvPatchField<vector>(p, iF, dict),
flowRate_(DataEntry<scalar>::New("flowRate", dict)),
phiName_(dict.lookupOrDefault<word>("phi", "phi")),
rhoName_(dict.lookupOrDefault<word>("rho", "rho"))
{}
fixedValueFvPatchField<vector>(p, iF),
rhoInlet_(0.0)
{
if (dict.found("volumetricFlowRate"))
{
volumetric_ = true;
flowRate_ = DataEntry<scalar>::New("volumetricFlowRate", dict);
rhoName_ = "rho";
}
else if (dict.found("massFlowRate"))
{
volumetric_ = false;
flowRate_ = DataEntry<scalar>::New("massFlowRate", dict);
rhoName_ = word(dict.lookupOrDefault<word>("rho", "rho"));
}
else
{
FatalIOErrorIn
(
"flowRateInletVelocityFvPatchVectorField::"
"flowRateInletVelocityFvPatchVectorField"
"(const fvPatch&, const DimensionedField<vector, volMesh>&,"
" const dictionary&)",
dict
) << "Please supply either 'volumetricFlowRate' or"
<< " 'massFlowRate' and 'rho'" << exit(FatalIOError);
}
// Value field require if mass based
if (dict.found("value"))
{
fvPatchField<vector>::operator=
(
vectorField("value", dict, p.size())
);
}
else if (volumetric_)
{
evaluate(Pstream::blocking);
}
else
{
rhoInlet_ = readScalar(dict.lookup("rhoInlet"));
updateCoeffs(rhoInlet_);
}
}
Foam::flowRateInletVelocityFvPatchVectorField::
@ -84,8 +127,9 @@ flowRateInletVelocityFvPatchVectorField
:
fixedValueFvPatchField<vector>(ptf),
flowRate_(ptf.flowRate_().clone().ptr()),
phiName_(ptf.phiName_),
rhoName_(ptf.rhoName_)
volumetric_(ptf.volumetric_),
rhoName_(ptf.rhoName_),
rhoInlet_(ptf.rhoInlet_)
{}
@ -98,13 +142,44 @@ flowRateInletVelocityFvPatchVectorField
:
fixedValueFvPatchField<vector>(ptf, iF),
flowRate_(ptf.flowRate_().clone().ptr()),
phiName_(ptf.phiName_),
rhoName_(ptf.rhoName_)
volumetric_(ptf.volumetric_),
rhoName_(ptf.rhoName_),
rhoInlet_(ptf.rhoInlet_)
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::flowRateInletVelocityFvPatchVectorField::updateCoeffs
(
const scalar uniformRho
)
{
if (updated())
{
return;
}
const scalar t = db().time().timeOutputValue();
// a simpler way of doing this would be nice
const scalar avgU = -flowRate_->value(t)/gSum(patch().magSf());
tmp<vectorField> n = patch().nf();
if (volumetric_ || rhoName_ == "none")
{
// volumetric flow-rate
operator==(n*avgU);
}
else
{
// mass flow-rate
operator==(n*avgU/uniformRho);
}
}
void Foam::flowRateInletVelocityFvPatchVectorField::updateCoeffs()
{
if (updated())
@ -119,40 +194,18 @@ void Foam::flowRateInletVelocityFvPatchVectorField::updateCoeffs()
tmp<vectorField> n = patch().nf();
const surfaceScalarField& phi =
db().lookupObject<surfaceScalarField>(phiName_);
if (phi.dimensions() == dimVelocity*dimArea)
if (volumetric_ || rhoName_ == "none")
{
// volumetric flow-rate
// volumetric flow-rate or density not given
operator==(n*avgU);
}
else if (phi.dimensions() == dimDensity*dimVelocity*dimArea)
{
if (rhoName_ == "none")
{
// volumetric flow-rate if density not given
operator==(n*avgU);
}
else
{
// mass flow-rate
const fvPatchField<scalar>& rhop =
patch().lookupPatchField<volScalarField, scalar>(rhoName_);
operator==(n*avgU/rhop);
}
}
else
{
FatalErrorIn
(
"flowRateInletVelocityFvPatchVectorField::updateCoeffs()"
) << "dimensions of " << phiName_ << " are incorrect" << nl
<< " on patch " << this->patch().name()
<< " of field " << this->dimensionedInternalField().name()
<< " in file " << this->dimensionedInternalField().objectPath()
<< nl << exit(FatalError);
// mass flow-rate
const fvPatchField<scalar>& rhop =
patch().lookupPatchField<volScalarField, scalar>(rhoName_);
operator==(n*avgU/rhop);
}
fixedValueFvPatchField<vector>::updateCoeffs();
@ -163,8 +216,11 @@ void Foam::flowRateInletVelocityFvPatchVectorField::write(Ostream& os) const
{
fvPatchField<vector>::write(os);
flowRate_->writeData(os);
writeEntryIfDifferent<word>(os, "phi", "phi", phiName_);
writeEntryIfDifferent<word>(os, "rho", "rho", rhoName_);
if (!volumetric_)
{
writeEntryIfDifferent<word>(os, "rho", "rho", rhoName_);
os.writeKeyword("rhoInlet") << rhoInlet_ << token::END_STATEMENT << nl;
}
writeEntry("value", os);
}

35
src/finiteVolume/fields/fvPatchFields/derived/flowRateInletVelocity/flowRateInletVelocityFvPatchVectorField.H
View File

@ -28,21 +28,25 @@ Description
Describes a volumetric/mass flow normal vector boundary condition by its
magnitude as an integral over its area.
The basis of the patch (volumetric or mass) is determined by the
dimensions of the flux, phi.
If the flux is mass-based
- the current density is used to correct the velocity
- volumetric flow rate can be applied by setting the 'rho' entry to 'none'
Either specify 'volumetricFlowRate' or 'massFlowRate' (requires additional
'rho' entry).
Example of the boundary condition specification:
\verbatim
inlet
{
type flowRateInletVelocity;
flowRate 0.2; // Volumetric/mass flow rate [m3/s or kg/s]
rho rho; // none | rho [m3/s or kg/s]
value uniform (0 0 0); // placeholder
type flowRateInletVelocity;
volumetricFlowRate 0.2; // Volumetric [m3/s]
}
\endverbatim
\verbatim
inlet
{
type flowRateInletVelocity;
volumetricFlowRate 0.2; // mass flow rate [kg/s]
rho rho; // rho [m3/s or kg/s]
value uniform (0 0 0); // placeholder
}
\endverbatim
@ -79,12 +83,15 @@ class flowRateInletVelocityFvPatchVectorField
//- Inlet integral flow rate
autoPtr<DataEntry<scalar> > flowRate_;
//- Name of the flux transporting the field
word phiName_;
//- Is volumetric?
bool volumetric_;
//- Name of the density field used to normalize the mass flux
word rhoName_;
//- Rho initialisation value (for start; if value not supplied)
scalar rhoInlet_;
public:
@ -157,6 +164,10 @@ public:
// Member functions
//- Update the coefficients associated with the patch field given
// uniform density field
void updateCoeffs(const scalar uniformRho);
//- Update the coefficients associated with the patch field
virtual void updateCoeffs();

2
tutorials/combustion/fireFoam/les/oppositeBurningPanels/0/U
View File

@ -37,7 +37,7 @@ boundaryField
burner
{
type flowRateInletVelocity;
flowRate constant 0.001294; //60kW C3H8
massFlowRate constant 0.001294; //60kW C3H8
value uniform (0 0 0);
}

2
tutorials/compressible/rhoPimpleFoam/ras/angledDuct/0/U
View File

@ -43,7 +43,7 @@ boundaryField
inlet
{
type flowRateInletVelocity;
flowRate constant 0.1;
massFlowRate constant 0.1;
value uniform (0 0 0);
}
outlet

4
tutorials/compressible/rhoPimplecFoam/angledDuct/0/U
View File

@ -43,8 +43,8 @@ boundaryField
inlet
{
type flowRateInletVelocity;
flowRate constant 0.1;
value uniform (0 0 0);
massFlowRate constant 0.1;
rhoInlet 1; // estimate for initial rho
}
outlet
{

2
tutorials/compressible/rhoPorousMRFLTSPimpleFoam/angledDuct/0/U
View File

@ -43,7 +43,7 @@ boundaryField
inlet
{
type flowRateInletVelocity;
flowRate constant 0.1;
massFlowRate constant 0.1;
value uniform (0 0 0);
}
outlet

2
tutorials/compressible/rhoPorousMRFSimpleFoam/angledDuctImplicit/0/U
View File

@ -43,7 +43,7 @@ boundaryField
inlet
{
type flowRateInletVelocity;
flowRate constant 0.1;
massFlowRate constant 0.1;
value uniform (0 0 0);
}
outlet

4
tutorials/compressible/rhoSimplecFoam/squareBend/0/U
View File

@ -28,8 +28,8 @@ boundaryField
inlet
{
type flowRateInletVelocity;
flowRate constant 0.5;
value uniform (0 0 0);
massFlowRate constant 0.5;
rhoInlet 0.5; // Guess for rho
}
outlet
{

3
tutorials/incompressible/porousSimpleFoam/angledDuctImplicit/0/U
View File

@ -43,8 +43,7 @@ boundaryField
inlet
{
type flowRateInletVelocity;
flowRate constant 0.1;
value uniform (0 0 0);
volumetricFlowRate constant 0.1;
}
outlet
{

4
tutorials/lagrangian/LTSReactingParcelFoam/verticalChannel/0.org/U
View File

@ -32,13 +32,13 @@ boundaryField
inletCentral
{
type flowRateInletVelocity;
flowRate constant 0.00379;
massFlowRate constant 0.00379;
value uniform (0 14.68 0);
}
inletSides
{
type flowRateInletVelocity;
flowRate constant 0.00832;
massFlowRate constant 0.00832;
value uniform (0 17.79 0);
}
outlet

4
tutorials/lagrangian/LTSReactingParcelFoam/verticalChannel/0/U
View File

@ -32,13 +32,13 @@ boundaryField
inletCentral
{
type flowRateInletVelocity;
flowRate constant 0.00379;
massFlowRate constant 0.00379;
value uniform (0 14.68 0);
}
inletSides
{
type flowRateInletVelocity;
flowRate constant 0.00832;
massFlowRate constant 0.00832;
value uniform (0 17.79 0);
}
outlet

4
tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/0.org/U
View File

@ -32,13 +32,13 @@ boundaryField
inletCentral
{
type flowRateInletVelocity;
flowRate constant 0.00379;
massFlowRate constant 0.00379;
value uniform (0 14.68 0);
}
inletSides
{
type flowRateInletVelocity;
flowRate constant 0.00832;
massFlowRate constant 0.00832;
value uniform (0 17.79 0);
}
outlet

4
tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/0/U
View File

@ -32,13 +32,13 @@ boundaryField
inletCentral
{
type flowRateInletVelocity;
flowRate constant 0.00379;
massFlowRate constant 0.00379;
value uniform (0 14.68 0);
}
inletSides
{
type flowRateInletVelocity;
flowRate constant 0.00832;
massFlowRate constant 0.00832;
value uniform (0 17.79 0);
}
outlet

3
tutorials/multiphase/interFoam/ras/waterChannel/0/U
View File

@ -23,8 +23,7 @@ boundaryField
inlet
{
type flowRateInletVelocity;
flowRate constant 50;
value uniform (0 0 0);
volumetricFlowRate constant 50;
}
walls