src/fvMotionSolver/pointPatchFields/derived/oscillatingVelocity/oscillatingVelocityPointPatchVectorField.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   4    \\    /   O peration     |
   5     \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
   6      \\/     M anipulation  |
   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of OpenFOAM.
  10
  11     OpenFOAM is free software; you can redistribute it and/or modify it
  12     under the terms of the GNU General Public License as published by the
  13     Free Software Foundation; either version 2 of the License, or (at your
  14     option) any later version.
  15
  16     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
  17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19     for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with OpenFOAM; if not, write to the Free Software Foundation,
  23     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  24
  25 \*---------------------------------------------------------------------------*/
  26
  27 #include "oscillatingVelocityPointPatchVectorField.H"
  28 #include "pointPatchFields.H"
  29 #include "addToRunTimeSelectionTable.H"
  30 #include "Time.H"
  31 #include "polyMesh.H"
  32
  33 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  34
  35 namespace Foam
  36 {
  37
  38 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
  39
  40 oscillatingVelocityPointPatchVectorField::
  41 oscillatingVelocityPointPatchVectorField
  42 (
  43     const pointPatch& p,
  44     const DimensionedField<vector, pointMesh>& iF
  45 )
  46 :
  47     fixedValuePointPatchField<vector>(p, iF),
  48     amplitude_(vector::zero),
  49     omega_(0.0),
  50     p0_(p.localPoints())
  51 {}
  52
  53
  54 oscillatingVelocityPointPatchVectorField::
  55 oscillatingVelocityPointPatchVectorField
  56 (
  57     const pointPatch& p,
  58     const DimensionedField<vector, pointMesh>& iF,
  59     const dictionary& dict
  60 )
  61 :
  62     fixedValuePointPatchField<vector>(p, iF, dict),
  63     amplitude_(dict.lookup("amplitude")),
  64     omega_(readScalar(dict.lookup("omega")))
  65 {
  66     if (!dict.found("value"))
  67     {
  68         updateCoeffs();
  69     }
  70
  71     if (dict.found("p0"))
  72     {
  73         p0_ = vectorField("p0", dict , p.size());
  74     }
  75     else
  76     {
  77         p0_ = p.localPoints();
  78     }
  79 }
  80
  81
  82 oscillatingVelocityPointPatchVectorField::
  83 oscillatingVelocityPointPatchVectorField
  84 (
  85     const oscillatingVelocityPointPatchVectorField& ptf,
  86     const pointPatch& p,
  87     const DimensionedField<vector, pointMesh>& iF,
  88     const pointPatchFieldMapper& mapper
  89 )
  90 :
  91     fixedValuePointPatchField<vector>(ptf, p, iF, mapper),
  92     amplitude_(ptf.amplitude_),
  93     omega_(ptf.omega_),
  94     p0_(ptf.p0_)
  95 {}
  96
  97
  98 oscillatingVelocityPointPatchVectorField::
  99 oscillatingVelocityPointPatchVectorField
 100 (
 101     const oscillatingVelocityPointPatchVectorField& ptf,
 102     const DimensionedField<vector, pointMesh>& iF
 103 )
 104 :
 105     fixedValuePointPatchField<vector>(ptf, iF),
 106     amplitude_(ptf.amplitude_),
 107     omega_(ptf.omega_),
 108     p0_(ptf.p0_)
 109 {}
 110
 111
 112 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 113
 114 void oscillatingVelocityPointPatchVectorField::updateCoeffs()
 115 {
 116     if (this->updated())
 117     {
 118         return;
 119     }
 120
 121     const polyMesh& mesh = this->dimensionedInternalField().mesh()();
 122     const Time& t = mesh.time();
 123     const pointPatch& p = this->patch();
 124
 125     Field<vector>::operator=
 126     (
 127         (p0_ + amplitude_*sin(omega_*t.value()) - p.localPoints())
 128        /t.deltaT().value()
 129     );
 130
 131     fixedValuePointPatchField<vector>::updateCoeffs();
 132 }
 133
 134
 135 void oscillatingVelocityPointPatchVectorField::write(Ostream& os) const
 136 {
 137     pointPatchField<vector>::write(os);
 138     os.writeKeyword("amplitude")
 139         << amplitude_ << token::END_STATEMENT << nl;
 140     os.writeKeyword("omega")
 141         << omega_ << token::END_STATEMENT << nl;
 142     p0_.writeEntry("p0", os);
 143     writeEntry("value", os);
 144 }
 145
 146
 147 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 148
 149 makePointPatchTypeField
 150 (
 151     pointPatchVectorField,
 152     oscillatingVelocityPointPatchVectorField
 153 );
 154
 155 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 156
 157 } // End namespace Foam
 158
 159 // ************************************************************************* //