fixedNormalInletOutletVelocityFvPatchVectorField.H

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Class
    Foam::fixedNormalInletOutletVelocityFvPatchVectorField
 
Description
 
    This velocity inlet/outlet boundary condition combines a fixed normal
    component obtained from the "normalVelocity" patchField supplied with a
    fixed or zero-gradiented tangential component depending on the direction
    of the flow and the setting of "fixTangentialInflow":
    - Outflow: apply zero-gradient condition to tangential components
    - Inflow:
      - fixTangentialInflow is true
        apply value provided by the normalVelocity patchField to the
        tangential components
      - fixTangentialInflow is false
        apply zero-gradient condition to tangential components.
 
Usage
    \table
        Property     | Description             | Required    | Default value
        phi          | flux field name         | no          | phi
  fixTangentialInflow | If true fix the tangential component for inflow | yes |
        normalVelocity | patchField providing the normal velocity field | yes |
    \endtable
 
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        type            fixedNormalInletOutletVelocity;
 
        fixTangentialInflow false;
        normalVelocity
        {
            type            uniformFixedValue;
            uniformValue    sine;
            uniformValueCoeffs
            {
                frequency 1;
                amplitude table
                (
                    (0  0)
                    (2  0.088)
                    (8  0.088)
                );
                scale     (0 1 0);
                level     (0 0 0);
            }
        }
 
        value           uniform (0 0 0);
    }
    \endverbatim
 
SourceFiles
    fixedNormalInletOutletVelocityFvPatchVectorField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef fixedNormalInletOutletVelocityFvPatchVectorField_H
#define fixedNormalInletOutletVelocityFvPatchVectorField_H
 
#include "fvPatchFields.H"
#include "directionMixedFvPatchFields.H"
#include "Switch.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
      Class fixedNormalInletOutletVelocityFvPatchVectorField Declaration
\*---------------------------------------------------------------------------*/
 
class fixedNormalInletOutletVelocityFvPatchVectorField
:
    public directionMixedFvPatchVectorField
{
    // Private Data
 
        //- Flux field name
        word phiName_;
 
        //- Set true to fix the tangential component for inflow
        Switch fixTangentialInflow_;
 
        //- BC which provided the normal component of the velocity
        tmp<fvPatchVectorField> normalVelocity_;
 
 
public:
 
    //- Runtime type information
    TypeName("fixedNormalInletOutletVelocity");
 
 
    // Constructors
 
        //- Construct from patch, internal field and dictionary
        fixedNormalInletOutletVelocityFvPatchVectorField
        (
            const fvPatch&,
            const DimensionedField<vector, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given
        //  fixedNormalInletOutletVelocityFvPatchVectorField onto a new patch
        fixedNormalInletOutletVelocityFvPatchVectorField
        (
            const fixedNormalInletOutletVelocityFvPatchVectorField&,
            const fvPatch&,
            const DimensionedField<vector, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Disallow copy without setting internal field reference
        fixedNormalInletOutletVelocityFvPatchVectorField
        (
            const fixedNormalInletOutletVelocityFvPatchVectorField&
        ) = delete;
 
        //- Copy constructor setting internal field reference
        fixedNormalInletOutletVelocityFvPatchVectorField
        (
            const fixedNormalInletOutletVelocityFvPatchVectorField&,
            const DimensionedField<vector, volMesh>&
        );
 
        //- Construct and return a clone setting internal field reference
        virtual tmp<fvPatchVectorField> clone
        (
            const DimensionedField<vector, volMesh>& iF
        ) const
        {
            return tmp<fvPatchVectorField>
            (
                new fixedNormalInletOutletVelocityFvPatchVectorField(*this, iF)
            );
        }
 
 
    // Member Functions
 
        // Attributes
 
            //- Return true: this patch field is altered by assignment
            virtual bool assignable() const
            {
                return true;
            }
 
 
        // Access
 
            //- Return the name of phi
            const word& phiName() const
            {
                return phiName_;
            }
 
            //- Return reference to the name of phi to allow adjustment
            word& phiName()
            {
                return phiName_;
            }
 
            Switch fixTangentialInflow() const
            {
                return fixTangentialInflow_;
            }
 
            //- Return the BC which provides the normal component of velocity
            const fvPatchVectorField& normalVelocity() const
            {
                return normalVelocity_();
            }
 
 
        // Mapping functions
 
            //- Map the given fvPatchField onto this fvPatchField
            virtual void map
            (
                const fvPatchVectorField&,
                const fvPatchFieldMapper&
            );
 
            //- Reset the fvPatchField to the given fvPatchField
            //  Used for mesh to mesh mapping
            virtual void reset(const fvPatchVectorField&);
 
 
        //- Update the coefficients associated with the patch field
        virtual void updateCoeffs();
 
        //- Write
        virtual void write(Ostream&) const;
 
 
    // Member Operators
 
        virtual void operator=(const fvPatchField<vector>& pvf);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //