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flowRateInletVelocityFvPatchVectorField Class Reference
Boundary Conditions » Inlet boundary Conditions

Velocity inlet boundary condition either correcting the extrapolated velocity or creating a uniform velocity field normal to the patch adjusted to match the specified flow rate. More...

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Public Member Functions

 TypeName ("flowRateInletVelocity")
 Runtime type information. More...
 
 flowRateInletVelocityFvPatchVectorField (const fvPatch &, const DimensionedField< vector, volMesh > &)
 Construct from patch and internal field. More...
 
 flowRateInletVelocityFvPatchVectorField (const fvPatch &, const DimensionedField< vector, volMesh > &, const dictionary &)
 Construct from patch, internal field and dictionary. More...
 
 flowRateInletVelocityFvPatchVectorField (const flowRateInletVelocityFvPatchVectorField &, const fvPatch &, const DimensionedField< vector, volMesh > &, const fvPatchFieldMapper &)
 Construct by mapping given. More...
 
 flowRateInletVelocityFvPatchVectorField (const flowRateInletVelocityFvPatchVectorField &)
 Construct as copy. More...
 
virtual tmp< fvPatchVectorField > clone () const
 Construct and return a clone. More...
 
 flowRateInletVelocityFvPatchVectorField (const flowRateInletVelocityFvPatchVectorField &, const DimensionedField< vector, volMesh > &)
 Construct as copy setting internal field reference. More...
 
virtual tmp< fvPatchVectorField > clone (const DimensionedField< vector, volMesh > &iF) const
 Construct and return a clone setting internal field reference. More...
 
virtual void updateCoeffs ()
 Update the coefficients associated with the patch field. More...
 
virtual void write (Ostream &) const
 Write. More...
 

Detailed Description

Velocity inlet boundary condition either correcting the extrapolated velocity or creating a uniform velocity field normal to the patch adjusted to match the specified flow rate.

For a mass-based flux:

For a volumetric-based flux:

Usage
Property Description Required Default value
massFlowRate mass flow rate [kg/s] no
volumetricFlowRate volumetric flow rate [m3/s] no
rho density field name no rho
rhoInlet inlet density no
extrapolateProfile Extrapolate velocity profile no false

Example of the boundary condition specification for a volumetric flow rate: 

    <patchName>
    {
        type                flowRateInletVelocity;
        volumetricFlowRate  0.2;
        extrapolateProfile  yes;
        value               uniform (0 0 0);
    }

Example of the boundary condition specification for a mass flow rate: 

    <patchName>
    {
        type                flowRateInletVelocity;
        massFlowRate        0.2;
        extrapolateProfile  yes;
        rho                 rho;
        rhoInlet            1.0;
        value               uniform (0 0 0);
    }

The flowRate entry is a Function1 of time, see Foam::Function1Types.

Note
  • rhoInlet is required for the case of a mass flow rate, where the density field is not available at start-up
  • The value is positive into the domain (as an inlet)
  • May not work correctly for transonic inlets
  • Strange behaviour with potentialFoam since the U equation is not solved
See also
Foam::fixedValueFvPatchField Foam::Function1Types Foam::flowRateOutletVelocityFvPatchVectorField
Source files

Definition at line 142 of file flowRateInletVelocityFvPatchVectorField.H.

Constructor & Destructor Documentation

◆ flowRateInletVelocityFvPatchVectorField() [1/5]

flowRateInletVelocityFvPatchVectorField ( const fvPatch &  p,
const DimensionedField< vector, volMesh > &  iF 
)

Construct from patch and internal field.

Definition at line 35 of file flowRateInletVelocityFvPatchVectorField.C.

Referenced by flowRateInletVelocityFvPatchVectorField::clone(), and flowRateInletVelocityFvPatchVectorField::flowRateInletVelocityFvPatchVectorField().

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◆ flowRateInletVelocityFvPatchVectorField() [2/5]

flowRateInletVelocityFvPatchVectorField ( const fvPatch &  p,
const DimensionedField< vector, volMesh > &  iF,
const dictionary &  dict 
)

Construct from patch, internal field and dictionary.

Definition at line 51 of file flowRateInletVelocityFvPatchVectorField.C.

References Foam::exit(), Foam::FatalIOError, FatalIOErrorInFunction, flowRateInletVelocityFvPatchVectorField::flowRateInletVelocityFvPatchVectorField(), Foam::New(), List< Type >::size(), and vectorField().

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◆ flowRateInletVelocityFvPatchVectorField() [3/5]

flowRateInletVelocityFvPatchVectorField ( const flowRateInletVelocityFvPatchVectorField &  ptf,
const fvPatch &  p,
const DimensionedField< vector, volMesh > &  iF,
const fvPatchFieldMapper &  mapper 
)

Construct by mapping given.

flowRateInletVelocityFvPatchVectorField onto a new patch

Definition at line 102 of file flowRateInletVelocityFvPatchVectorField.C.

References flowRateInletVelocityFvPatchVectorField::flowRateInletVelocityFvPatchVectorField().

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◆ flowRateInletVelocityFvPatchVectorField() [4/5]

flowRateInletVelocityFvPatchVectorField ( const flowRateInletVelocityFvPatchVectorField &  ptf)

Construct as copy.

Definition at line 120 of file flowRateInletVelocityFvPatchVectorField.C.

References flowRateInletVelocityFvPatchVectorField::flowRateInletVelocityFvPatchVectorField().

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◆ flowRateInletVelocityFvPatchVectorField() [5/5]

flowRateInletVelocityFvPatchVectorField ( const flowRateInletVelocityFvPatchVectorField &  ptf,
const DimensionedField< vector, volMesh > &  iF 
)

Construct as copy setting internal field reference.

Definition at line 135 of file flowRateInletVelocityFvPatchVectorField.C.

References Foam::gSum(), Foam::mag(), Foam::min(), n, Foam::operator==(), and rho.

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Member Function Documentation

◆ TypeName()

TypeName ( "flowRateInletVelocity"  )

Runtime type information.

◆ clone() [1/2]

virtual tmp<fvPatchVectorField> clone ( ) const
inlinevirtual

Construct and return a clone.

Definition at line 212 of file flowRateInletVelocityFvPatchVectorField.H.

References flowRateInletVelocityFvPatchVectorField::flowRateInletVelocityFvPatchVectorField().

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◆ clone() [2/2]

virtual tmp<fvPatchVectorField> clone ( const DimensionedField< vector, volMesh > &  iF) const
inlinevirtual

Construct and return a clone setting internal field reference.

Definition at line 229 of file flowRateInletVelocityFvPatchVectorField.H.

References flowRateInletVelocityFvPatchVectorField::flowRateInletVelocityFvPatchVectorField(), flowRateInletVelocityFvPatchVectorField::updateCoeffs(), and flowRateInletVelocityFvPatchVectorField::write().

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◆ updateCoeffs()

void updateCoeffs ( )
virtual

Update the coefficients associated with the patch field.

Definition at line 200 of file flowRateInletVelocityFvPatchVectorField.C.

References Foam::exit(), Foam::FatalError, and FatalErrorInFunction.

Referenced by flowRateInletVelocityFvPatchVectorField::clone().

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◆ write()

void write ( Ostream &  os) const
virtual

Write.

Definition at line 240 of file flowRateInletVelocityFvPatchVectorField.C.

References token::END_STATEMENT, Foam::makePatchTypeField(), Foam::nl, fvPatchField< Type >::write(), and Ostream::writeKeyword().

Referenced by flowRateInletVelocityFvPatchVectorField::clone().

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