src/dynamicMesh/meshMotion/fvMotionSolver/pointPatchFields/derived/angularOscillatingVelocity/angularOscillatingVelocityPointPatchVectorField.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | foam-extend: Open Source CFD
   4    \\    /   O peration     | Version:     3.2
   5     \\  /    A nd           | Web:         http://www.foam-extend.org
   6      \\/     M anipulation  | For copyright notice see file Copyright
   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of foam-extend.
  10
  11     foam-extend 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 3 of the License, or (at your
  14     option) any later version.
  15
  16     foam-extend is distributed in the hope that it will be useful, but
  17     WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19     General Public License for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 \*---------------------------------------------------------------------------*/
  25
  26 #include "angularOscillatingVelocityPointPatchVectorField.H"
  27 #include "pointPatchFields.H"
  28 #include "addToRunTimeSelectionTable.H"
  29 #include "foamTime.H"
  30 #include "polyMesh.H"
  31
  32 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  33
  34 namespace Foam
  35 {
  36
  37 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
  38
  39 angularOscillatingVelocityPointPatchVectorField::
  40 angularOscillatingVelocityPointPatchVectorField
  41 (
  42     const pointPatch& p,
  43     const DimensionedField<vector, pointMesh>& iF
  44 )
  45 :
  46     fixedValuePointPatchVectorField(p, iF),
  47     axis_(vector::zero),
  48     origin_(vector::zero),
  49     angle0_(0.0),
  50     amplitude_(0.0),
  51     omega_(0.0),
  52     p0_(p.localPoints())
  53 {}
  54
  55
  56 angularOscillatingVelocityPointPatchVectorField::
  57 angularOscillatingVelocityPointPatchVectorField
  58 (
  59     const pointPatch& p,
  60     const DimensionedField<vector, pointMesh>& iF,
  61     const dictionary& dict
  62 )
  63 :
  64     fixedValuePointPatchVectorField(p, iF, dict),
  65     axis_(dict.lookup("axis")),
  66     origin_(dict.lookup("origin")),
  67     angle0_(readScalar(dict.lookup("angle0"))),
  68     amplitude_(readScalar(dict.lookup("amplitude"))),
  69     omega_(readScalar(dict.lookup("omega")))
  70 {
  71     if (!dict.found("value"))
  72     {
  73         updateCoeffs();
  74     }
  75
  76     if (dict.found("p0"))
  77     {
  78         p0_ = vectorField("p0", dict , p.size());
  79     }
  80     else
  81     {
  82         p0_ = p.localPoints();
  83     }
  84 }
  85
  86
  87 angularOscillatingVelocityPointPatchVectorField::
  88 angularOscillatingVelocityPointPatchVectorField
  89 (
  90     const angularOscillatingVelocityPointPatchVectorField& ptf,
  91     const pointPatch& p,
  92     const DimensionedField<vector, pointMesh>& iF,
  93     const PointPatchFieldMapper& mapper
  94 )
  95 :
  96     fixedValuePointPatchVectorField(ptf, p, iF, mapper),
  97     axis_(ptf.axis_),
  98     origin_(ptf.origin_),
  99     angle0_(ptf.angle0_),
 100     amplitude_(ptf.amplitude_),
 101     omega_(ptf.omega_),
 102     p0_(ptf.p0_)
 103 {}
 104
 105
 106 angularOscillatingVelocityPointPatchVectorField::
 107 angularOscillatingVelocityPointPatchVectorField
 108 (
 109     const angularOscillatingVelocityPointPatchVectorField& ptf,
 110     const DimensionedField<vector, pointMesh>& iF
 111 )
 112 :
 113     fixedValuePointPatchVectorField(ptf, iF),
 114     axis_(ptf.axis_),
 115     origin_(ptf.origin_),
 116     angle0_(ptf.angle0_),
 117     amplitude_(ptf.amplitude_),
 118     omega_(ptf.omega_),
 119     p0_(ptf.p0_)
 120 {}
 121
 122
 123 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 124
 125 void angularOscillatingVelocityPointPatchVectorField::updateCoeffs()
 126 {
 127     if (this->updated())
 128     {
 129         return;
 130     }
 131
 132     const polyMesh& mesh = this->dimensionedInternalField().mesh()();
 133     const Time& t = mesh.time();
 134     const pointPatch& p = this->patch();
 135
 136     scalar angle = angle0_ + amplitude_*sin(omega_*t.value());
 137     vector axisHat = axis_/mag(axis_);
 138     vectorField p0Rel = p0_ - origin_;
 139
 140     vectorField::operator=
 141     (
 142         (
 143             p0_
 144           + p0Rel*(cos(angle) - 1)
 145           + (axisHat ^ p0Rel*sin(angle))
 146           + (axisHat & p0Rel)*(1 - cos(angle))*axisHat
 147           - p.localPoints()
 148         )/t.deltaT().value()
 149     );
 150
 151     fixedValuePointPatchVectorField::updateCoeffs();
 152 }
 153
 154
 155 void angularOscillatingVelocityPointPatchVectorField::write
 156 (
 157     Ostream& os
 158 ) const
 159 {
 160     pointPatchField<vector>::write(os);
 161     os.writeKeyword("axis")
 162         << axis_ << token::END_STATEMENT << nl;
 163     os.writeKeyword("origin")
 164         << origin_ << token::END_STATEMENT << nl;
 165     os.writeKeyword("angle0")
 166         << angle0_ << token::END_STATEMENT << nl;
 167     os.writeKeyword("amplitude")
 168         << amplitude_ << token::END_STATEMENT << nl;
 169     os.writeKeyword("omega")
 170         << omega_ << token::END_STATEMENT << nl;
 171     p0_.writeEntry("p0", os);
 172     writeEntry("value", os);
 173 }
 174
 175
 176 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 177
 178 makePointPatchTypeField
 179 (
 180     pointPatchVectorField,
 181     angularOscillatingVelocityPointPatchVectorField
 182 );
 183
 184 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 185
 186 } // End namespace Foam
 187
 188 // ************************************************************************* //