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totalPressureFvPatchScalarField Class Reference
Boundary conditions » Inlet | Boundary conditions » Outlet

This boundary condition provides a total pressure condition. Four variants are possible: More...

#include <totalPressureFvPatchScalarField.H>

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Public Member Functions

 TypeName ("totalPressure")
 Runtime type information.
 totalPressureFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &)
 Construct from patch and internal field.
 totalPressureFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &, const dictionary &)
 Construct from patch, internal field and dictionary.
 totalPressureFvPatchScalarField (const totalPressureFvPatchScalarField &, const fvPatch &, const DimensionedField< scalar, volMesh > &, const fvPatchFieldMapper &)
 Construct by mapping given totalPressureFvPatchScalarField.
 totalPressureFvPatchScalarField (const totalPressureFvPatchScalarField &)
 Construct as copy.
 totalPressureFvPatchScalarField (const totalPressureFvPatchScalarField &, const DimensionedField< scalar, volMesh > &)
 Construct as copy setting internal field reference.
virtual tmp< fvPatchField< scalar > > clone () const
 Return a clone.
virtual tmp< fvPatchField< scalar > > clone (const DimensionedField< scalar, volMesh > &iF) const
 Clone with an internal field reference.
const word & UName () const
 Return the name of the velocity field.
word & UName ()
 Return reference to the name of the velocity field.
const word & phiName () const
 Return the name of the flux field.
word & phiName ()
 Return reference to the name of the flux field.
const word & rhoName () const
 Return the name of the density field.
word & rhoName ()
 Return reference to the name of the density field.
const word & psiName () const
 Return the name of the compressibility field.
word & psiName ()
 Return reference to the name of the compressibility field.
scalar gamma () const
 Return the heat capacity ratio.
scalar & gamma ()
 Return reference to the heat capacity ratio to allow adjustment.
const scalarField & p0 () const
 Return the total pressure.
scalarField & p0 ()
 Return reference to the total pressure to allow adjustment.
virtual void autoMap (const fvPatchFieldMapper &)
 Map (and resize as needed) from self given a mapping object.
virtual void rmap (const fvPatchScalarField &, const labelList &)
 Reverse map the given fvPatchField onto this fvPatchField.
virtual void updateCoeffs (const scalarField &p0p, const vectorField &Up)
 Update the coefficients associated with the patch field.
virtual void updateCoeffs ()
 Update the coefficients associated with the patch field.
virtual void write (Ostream &) const
 Write.

Detailed Description

This boundary condition provides a total pressure condition. Four variants are possible:

1. incompressible subsonic:

\‍[ p_p = p_0 - 0.5 |U|^2 \‍]

where

$ p_p $=incompressible pressure at patch [m2/s2]
$ p_0 $=incompressible total pressure [m2/s2]
$ U $=velocity

2. compressible subsonic:

\‍[ p_p = p_0 - 0.5 \rho |U|^2 \‍]

where

$ p_p $=pressure at patch [Pa]
$ p_0 $=total pressure [Pa]
$ \rho $=density [kg/m3]
$ U $=velocity

3. compressible transonic ( $\gamma = 1$):

\‍[ p_p = \frac{p_0}{1 + 0.5 \psi |U|^2} \‍]

where

$ p_p $=pressure at patch [Pa]
$ p_0 $=total pressure [Pa]
$ G $=coefficient given by $\frac{\gamma}{1-\gamma}$

4. compressible supersonic ( $\gamma > 1$):

\‍[ p_p = \frac{p_0}{(1 + 0.5 \psi G |U|^2)^{\frac{1}{G}}} \‍]

where

$ p_p $=pressure at patch [Pa]
$ p_0 $=total pressure [Pa]
$ \gamma $=ratio of specific heats (Cp/Cv)
$ \psi $=compressibility [m2/s2]
$ G $=coefficient given by $\frac{\gamma}{1-\gamma}$

The modes of operation are set by the dimensions of the pressure field to which this boundary condition is applied, the psi entry and the value of gamma:

Mode dimensions psi gamma
incompressible subsonic p/rho
compressible subsonic p none
compressible transonic p psi 1
compressible supersonic p psi > 1
Usage
Property Description Required Default value
U Velocity field name no U
phi Flux field name no phi
rho Density field name no rho
psi Compressibility field name no none
gamma (Cp/Cv) no 1
p0 Total pressure yes

Example of the boundary condition specification: 

    <patchName>
    {
        type            totalPressure;
        p0              uniform 1e5;
    }
See also
Foam::fixedValueFvPatchField
Source files

Definition at line 252 of file totalPressureFvPatchScalarField.H.

Constructor & Destructor Documentation

◆ totalPressureFvPatchScalarField() [1/5]

totalPressureFvPatchScalarField ( const fvPatch & p,
const DimensionedField< scalar, volMesh > & iF )

Construct from patch and internal field.

Definition at line 31 of file totalPressureFvPatchScalarField.C.

References p, and Foam::Zero.

Referenced by fanPressureFvPatchScalarField::fanPressureFvPatchScalarField(), fanPressureFvPatchScalarField::fanPressureFvPatchScalarField(), fanPressureFvPatchScalarField::fanPressureFvPatchScalarField(), fanPressureFvPatchScalarField::fanPressureFvPatchScalarField(), fanPressureFvPatchScalarField::fanPressureFvPatchScalarField(), rmap(), rotatingTotalPressureFvPatchScalarField::rotatingTotalPressureFvPatchScalarField(), rotatingTotalPressureFvPatchScalarField::rotatingTotalPressureFvPatchScalarField(), rotatingTotalPressureFvPatchScalarField::rotatingTotalPressureFvPatchScalarField(), rotatingTotalPressureFvPatchScalarField::rotatingTotalPressureFvPatchScalarField(), rotatingTotalPressureFvPatchScalarField::rotatingTotalPressureFvPatchScalarField(), totalPressureFvPatchScalarField(), totalPressureFvPatchScalarField(), totalPressureFvPatchScalarField(), and TypeName().

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◆ totalPressureFvPatchScalarField() [2/5]

totalPressureFvPatchScalarField ( const fvPatch & p,
const DimensionedField< scalar, volMesh > & iF,
const dictionary & dict )

Construct from patch, internal field and dictionary.

Definition at line 47 of file totalPressureFvPatchScalarField.C.

References dict, fvPatchField< Type >::operator=(), and p.

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◆ totalPressureFvPatchScalarField() [3/5]

totalPressureFvPatchScalarField ( const totalPressureFvPatchScalarField & ptf,
const fvPatch & p,
const DimensionedField< scalar, volMesh > & iF,
const fvPatchFieldMapper & mapper )

Construct by mapping given totalPressureFvPatchScalarField.

onto a new patch

Definition at line 69 of file totalPressureFvPatchScalarField.C.

References p, and totalPressureFvPatchScalarField().

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◆ totalPressureFvPatchScalarField() [4/5]

totalPressureFvPatchScalarField ( const totalPressureFvPatchScalarField & tppsf)

Construct as copy.

Definition at line 87 of file totalPressureFvPatchScalarField.C.

References totalPressureFvPatchScalarField().

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◆ totalPressureFvPatchScalarField() [5/5]

totalPressureFvPatchScalarField ( const totalPressureFvPatchScalarField & tppsf,
const DimensionedField< scalar, volMesh > & iF )

Construct as copy setting internal field reference.

Definition at line 102 of file totalPressureFvPatchScalarField.C.

References totalPressureFvPatchScalarField().

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Member Function Documentation

◆ TypeName()

TypeName ( "totalPressure" )

Runtime type information.

References totalPressureFvPatchScalarField().

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◆ clone() [1/2]

virtual tmp< fvPatchField< scalar > > clone ( ) const
inlinevirtual

Return a clone.

Reimplemented in fanPressureFvPatchScalarField, and rotatingTotalPressureFvPatchScalarField.

Definition at line 352 of file totalPressureFvPatchScalarField.H.

References fvPatchField< Type >::Clone().

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◆ clone() [2/2]

virtual tmp< fvPatchField< scalar > > clone ( const DimensionedField< scalar, volMesh > & iF) const
inlinevirtual

Clone with an internal field reference.

Reimplemented in fanPressureFvPatchScalarField, and rotatingTotalPressureFvPatchScalarField.

Definition at line 360 of file totalPressureFvPatchScalarField.H.

References fvPatchField< Type >::Clone().

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◆ UName() [1/2]

const word & UName ( ) const
inline

Return the name of the velocity field.

Definition at line 376 of file totalPressureFvPatchScalarField.H.

◆ UName() [2/2]

word & UName ( )
inline

Return reference to the name of the velocity field.

to allow adjustment

Definition at line 386 of file totalPressureFvPatchScalarField.H.

◆ phiName() [1/2]

const word & phiName ( ) const
inline

Return the name of the flux field.

Definition at line 394 of file totalPressureFvPatchScalarField.H.

Referenced by fanPressureFvPatchScalarField::updateCoeffs().

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◆ phiName() [2/2]

word & phiName ( )
inline

Return reference to the name of the flux field.

to allow adjustment

Definition at line 404 of file totalPressureFvPatchScalarField.H.

◆ rhoName() [1/2]

const word & rhoName ( ) const
inline

Return the name of the density field.

Definition at line 412 of file totalPressureFvPatchScalarField.H.

Referenced by fanPressureFvPatchScalarField::updateCoeffs().

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◆ rhoName() [2/2]

word & rhoName ( )
inline

Return reference to the name of the density field.

to allow adjustment

Definition at line 422 of file totalPressureFvPatchScalarField.H.

◆ psiName() [1/2]

const word & psiName ( ) const
inline

Return the name of the compressibility field.

Definition at line 430 of file totalPressureFvPatchScalarField.H.

◆ psiName() [2/2]

word & psiName ( )
inline

Return reference to the name of the compressibility field.

to allow adjustment

Definition at line 440 of file totalPressureFvPatchScalarField.H.

◆ gamma() [1/2]

scalar gamma ( ) const
inline

Return the heat capacity ratio.

Definition at line 448 of file totalPressureFvPatchScalarField.H.

◆ gamma() [2/2]

scalar & gamma ( )
inline

Return reference to the heat capacity ratio to allow adjustment.

Definition at line 456 of file totalPressureFvPatchScalarField.H.

◆ p0() [1/2]

const scalarField & p0 ( ) const
inline

Return the total pressure.

Definition at line 464 of file totalPressureFvPatchScalarField.H.

◆ p0() [2/2]

scalarField & p0 ( )
inline

Return reference to the total pressure to allow adjustment.

Definition at line 472 of file totalPressureFvPatchScalarField.H.

◆ autoMap()

void autoMap ( const fvPatchFieldMapper & m)
virtual

Map (and resize as needed) from self given a mapping object.

Definition at line 120 of file totalPressureFvPatchScalarField.C.

◆ rmap()

void rmap ( const fvPatchScalarField & ptf,
const labelList & addr )
virtual

Reverse map the given fvPatchField onto this fvPatchField.

Definition at line 130 of file totalPressureFvPatchScalarField.C.

References Foam::refCast(), and totalPressureFvPatchScalarField().

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◆ updateCoeffs() [1/2]

void updateCoeffs ( const scalarField & p0p,
const vectorField & Up )
virtual

Update the coefficients associated with the patch field.

using the given patch total pressure and velocity fields

Definition at line 145 of file totalPressureFvPatchScalarField.C.

References Foam::dimDensity, Foam::dimPressure, Foam::exit(), Foam::FatalError, FatalErrorInFunction, Foam::magSqr(), Foam::neg(), Foam::nl, Foam::operator==(), Foam::pow(), and rho.

Referenced by updateCoeffs().

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◆ updateCoeffs() [2/2]

void updateCoeffs ( )
virtual

Update the coefficients associated with the patch field.

Reimplemented in fanPressureFvPatchScalarField, and rotatingTotalPressureFvPatchScalarField.

Definition at line 221 of file totalPressureFvPatchScalarField.C.

References p0, UName(), and updateCoeffs().

Referenced by fanPressureFvPatchScalarField::updateCoeffs(), and rotatingTotalPressureFvPatchScalarField::updateCoeffs().

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◆ write()

void write ( Ostream & os) const
virtual

Write.

Reimplemented in fanPressureFvPatchScalarField, and rotatingTotalPressureFvPatchScalarField.

Definition at line 231 of file totalPressureFvPatchScalarField.C.

References os(), fvPatchField< Type >::write(), and fvPatchField< Type >::writeValueEntry().

Referenced by fanPressureFvPatchScalarField::write(), and rotatingTotalPressureFvPatchScalarField::write().

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The documentation for this class was generated from the following files: