streamLineParticle.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::streamLineParticle
 
Description
    Particle class that samples fields as it passes through. Used in streamline
    calculation.
 
SourceFiles
    streamLineParticle.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef streamLineParticle_H
#define streamLineParticle_H
 
#include "particle.H"
#include "autoPtr.H"
#include "interpolation.H"
#include "vectorList.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class streamLineParticleCloud;
 
/*---------------------------------------------------------------------------*\
                     Class streamLineParticle Declaration
\*---------------------------------------------------------------------------*/
 
class streamLineParticle
:
    public particle
{
 
public:
 
    //- Class used to pass tracking data to the trackToFace function
    class trackingData
    :
        public particle::TrackingData<Cloud<streamLineParticle> >
    {
 
    public:
 
 
        const PtrList<interpolation<scalar> >& vsInterp_;
        const PtrList<interpolation<vector> >& vvInterp_;
        const label UIndex_;
        const bool trackForward_;
        const label nSubCycle_;
        const scalar trackLength_;
 
        DynamicList<vectorList>& allPositions_;
        List<DynamicList<scalarList> >& allScalars_;
        List<DynamicList<vectorList> >& allVectors_;
 
 
        // Constructors
 
            trackingData
            (
                Cloud<streamLineParticle>& cloud,
                const PtrList<interpolation<scalar> >& vsInterp,
                const PtrList<interpolation<vector> >& vvInterp,
                const label UIndex,
                const bool trackForward,
                const label nSubCycle,
                const scalar trackLength,
 
                DynamicList<List<point> >& allPositions,
                List<DynamicList<scalarList> >& allScalars,
                List<DynamicList<vectorList> >& allVectors
            )
            :
                particle::TrackingData<Cloud<streamLineParticle> >(cloud),
                vsInterp_(vsInterp),
                vvInterp_(vvInterp),
                UIndex_(UIndex),
                trackForward_(trackForward),
                nSubCycle_(nSubCycle),
                trackLength_(trackLength),
 
                allPositions_(allPositions),
                allScalars_(allScalars),
                allVectors_(allVectors)
            {}
    };
 
 
private:
 
    // Private data
 
        //- Lifetime of particle. Particle dies when reaches 0.
        label lifeTime_;
 
        //- Sampled positions
        DynamicList<point> sampledPositions_;
 
        //- Sampled scalars
        List<DynamicList<scalar> > sampledScalars_;
 
        //- Sampled vectors
        List<DynamicList<vector> > sampledVectors_;
 
 
    // Private Member Functions
 
        //- Estimate dt to cross from current face to next one in nSubCycle
        //  steps.
        scalar calcSubCycleDeltaT
        (
            trackingData& td,
            const scalar dt,
            const vector& U
        ) const;
 
        void constrainVelocity
        (
            trackingData& td,
            const scalar dt,
            vector& U
        );
 
        //- Interpolate all quantities; return interpolated velocity.
        vector interpolateFields
        (
            const trackingData&,
            const point&,
            const label cellI,
            const label faceI
        );
 
 
public:
 
    // Constructors
 
        //- Construct from components
        streamLineParticle
        (
            const polyMesh& c,
            const vector& position,
            const label cellI,
            const label lifeTime
        );
 
        //- Construct from Istream
        streamLineParticle
        (
            const polyMesh& c,
            Istream& is,
            bool readFields = true
        );
 
        //- Construct copy
        streamLineParticle(const streamLineParticle& p);
 
        //- Construct and return a clone
        autoPtr<particle> clone() const
        {
            return autoPtr<particle>(new streamLineParticle(*this));
        }
 
        //- Factory class to read-construct particles used for
        //  parallel transfer
        class iNew
        {
            const polyMesh& mesh_;
 
        public:
 
            iNew(const polyMesh& mesh)
            :
                mesh_(mesh)
            {}
 
            autoPtr<streamLineParticle> operator()(Istream& is) const
            {
                return autoPtr<streamLineParticle>
                (
                    new streamLineParticle(mesh_, is, true)
                );
            }
        };
 
 
    // Member Functions
 
        // Tracking
 
            //- Track all particles to their end point
            bool move(trackingData&, const scalar trackTime);
 
 
            //- Overridable function to handle the particle hitting a patch
            //  Executed before other patch-hitting functions
            bool hitPatch
            (
                const polyPatch&,
                trackingData& td,
                const label patchI,
                const scalar trackFraction,
                const tetIndices& tetIs
            );
 
            //- Overridable function to handle the particle hitting a wedge
            void hitWedgePatch
            (
                const wedgePolyPatch&,
                trackingData& td
            );
 
            //- Overridable function to handle the particle hitting a
            //  symmetry plane
            void hitSymmetryPlanePatch
            (
                const symmetryPlanePolyPatch&,
                trackingData& td
            );
 
            //- Overridable function to handle the particle hitting a
            //  symmetry patch
            void hitSymmetryPatch
            (
                const symmetryPolyPatch&,
                trackingData& td
            );
 
            //- Overridable function to handle the particle hitting a cyclic
            void hitCyclicPatch
            (
                const cyclicPolyPatch&,
                trackingData& td
            );
 
            //- Overridable function to handle the particle hitting a
            //- processorPatch
            void hitProcessorPatch
            (
                const processorPolyPatch&,
                trackingData& td
            );
 
            //- Overridable function to handle the particle hitting a wallPatch
            void hitWallPatch
            (
                const wallPolyPatch&,
                trackingData& td,
                const tetIndices&
            );
 
            //- Overridable function to handle the particle hitting a polyPatch
            void hitPatch
            (
                const polyPatch&,
                trackingData& td
            );
 
 
        // I-O
 
            //- Read
            static void readFields(Cloud<streamLineParticle>&);
 
            //- Write
            static void writeFields(const Cloud<streamLineParticle>&);
 
 
    // Ostream Operator
 
        friend Ostream& operator<<(Ostream&, const streamLineParticle&);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //