rotatingWallVelocityFvPatchVectorField.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::rotatingWallVelocityFvPatchVectorField
 
Description
    Condition on velocity for a boundary consisting of a rotating solid of
    revolution, e.g. cylinder. Calculates a tangential component of velocity
    from the angular velocity and rotational axis and ensures a zero normal
    component.
 
Usage
    \table
        Property     | Description             | Required    | Default value
        origin       | origin of rotation in Cartesian co-ordinates | yes|
        axis         | axis of rotation        | yes         |
        omega        | angular velocity of the frame [rad/s] | no |
        rpm          | angular velocity of the frame [rpm]   | no |
    \endtable
 
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        type            rotatingWallVelocity;
        origin          (0 0 0);
        axis            (0 0 1);
        rpm             100;
    }
    \endverbatim
 
    The \c omega or \c rpm entries are Function1 of time, see Foam::Function1s.
 
See also
    Foam::fixedValueFvPatchField
    Foam::Function1s
 
SourceFiles
    rotatingWallVelocityFvPatchVectorField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef rotatingWallVelocityFvPatchVectorField_H
#define rotatingWallVelocityFvPatchVectorField_H
 
#include "fixedValueFvPatchFields.H"
#include "omega.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
           Class rotatingWallVelocityFvPatchVectorField Declaration
\*---------------------------------------------------------------------------*/
 
class rotatingWallVelocityFvPatchVectorField
:
    public fixedValueFvPatchVectorField
{
    // Private Data
 
        //- Origin of the rotation
        vector origin_;
 
        //- Axis of the rotation
        vector axis_;
 
        //- Rotational speed
        Function1s::omega omega_;
 
 
public:
 
    //- Runtime type information
    TypeName("rotatingWallVelocity");
 
 
    // Constructors
 
        //- Construct from patch, internal field and dictionary
        rotatingWallVelocityFvPatchVectorField
        (
            const fvPatch&,
            const DimensionedField<vector, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given rotatingWallVelocityFvPatchVectorField
        //  onto a new patch
        rotatingWallVelocityFvPatchVectorField
        (
            const rotatingWallVelocityFvPatchVectorField&,
            const fvPatch&,
            const DimensionedField<vector, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Disallow copy without setting internal field reference
        rotatingWallVelocityFvPatchVectorField
        (
            const rotatingWallVelocityFvPatchVectorField&
        ) = delete;
 
        //- Copy constructor setting internal field reference
        rotatingWallVelocityFvPatchVectorField
        (
            const rotatingWallVelocityFvPatchVectorField&,
            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 rotatingWallVelocityFvPatchVectorField(*this, iF)
            );
        }
 
 
 
    // Member Functions
 
        //- Update the coefficients associated with the patch field
        virtual void updateCoeffs();
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //