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freestreamPressureFvPatchScalarField: Added support for supersonic freestream

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Set the new optional switch "supersonic" to true if the freestream flow is
supersonic.
This commit is contained in:
Henry Weller
2018-05-22 20:00:30 +01:00
parent b9af7f6018
commit 26ec6f8ceb
2 changed files with 35 additions and 15 deletions
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38
src/finiteVolume/fields/fvPatchFields/derived/freestreamPressure/freestreamPressureFvPatchScalarField.C
View File

@ -37,7 +37,8 @@ freestreamPressureFvPatchScalarField
)
:
mixedFvPatchScalarField(p, iF),
UName_("U")
UName_("U"),
supersonic_(false)
{}
@ -50,7 +51,11 @@ freestreamPressureFvPatchScalarField
)
:
mixedFvPatchScalarField(p, iF),
UName_(dict.lookupOrDefault<word>("U", "U"))
UName_(dict.lookupOrDefault<word>("U", "U")),
supersonic_
(
dict.lookupOrDefault<Switch>("supersonic", false)
)
{
freestreamValue() = scalarField("freestreamValue", dict, p.size());
@ -74,37 +79,40 @@ freestreamPressureFvPatchScalarField
Foam::freestreamPressureFvPatchScalarField::
freestreamPressureFvPatchScalarField
(
const freestreamPressureFvPatchScalarField& ptf,
const freestreamPressureFvPatchScalarField& psf,
const fvPatch& p,
const DimensionedField<scalar, volMesh>& iF,
const fvPatchFieldMapper& mapper
)
:
mixedFvPatchScalarField(ptf, p, iF, mapper),
UName_(ptf.UName_)
mixedFvPatchScalarField(psf, p, iF, mapper),
UName_(psf.UName_),
supersonic_(psf.supersonic_)
{}
Foam::freestreamPressureFvPatchScalarField::
freestreamPressureFvPatchScalarField
(
const freestreamPressureFvPatchScalarField& wbppsf
const freestreamPressureFvPatchScalarField& psf
)
:
mixedFvPatchScalarField(wbppsf),
UName_(wbppsf.UName_)
mixedFvPatchScalarField(psf),
UName_(psf.UName_),
supersonic_(psf.supersonic_)
{}
Foam::freestreamPressureFvPatchScalarField::
freestreamPressureFvPatchScalarField
(
const freestreamPressureFvPatchScalarField& wbppsf,
const freestreamPressureFvPatchScalarField& psf,
const DimensionedField<scalar, volMesh>& iF
)
:
mixedFvPatchScalarField(wbppsf, iF),
UName_(wbppsf.UName_)
mixedFvPatchScalarField(psf, iF),
UName_(psf.UName_),
supersonic_(psf.supersonic_)
{}
@ -123,7 +131,14 @@ void Foam::freestreamPressureFvPatchScalarField::updateCoeffs()
UName_
);
if (supersonic_)
{
valueFraction() = 0.5 - 0.5*(Up & patch().nf())/mag(Up);
}
else
{
valueFraction() = 0.5 + 0.5*(Up & patch().nf())/mag(Up);
}
mixedFvPatchField<scalar>::updateCoeffs();
}
@ -134,6 +149,7 @@ void Foam::freestreamPressureFvPatchScalarField::write(Ostream& os) const
fvPatchScalarField::write(os);
writeEntryIfDifferent<word>(os, "U", "U", UName_);
freestreamValue().writeEntry("freestreamValue", os);
os.writeKeyword("supersonic") << supersonic_ << token::END_STATEMENT << nl;
writeEntry("value", os);
}

4
src/finiteVolume/fields/fvPatchFields/derived/freestreamPressure/freestreamPressureFvPatchScalarField.H
View File

@ -39,6 +39,7 @@ Usage
Property | Description | Required | Default value
U | velocity field name | no | U
freestreamValue | freestream pressure | yes |
supersonic | Switch for supersonic flow | no | false
\endtable
Example of the boundary condition specification:
@ -86,6 +87,9 @@ class freestreamPressureFvPatchScalarField
//- Name of the velocity field
word UName_;
//- Set true for supersonic freestream
Switch supersonic_;
public: