applications/utilities/preProcessing/convertPhi/convertPhi.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 Description
  25     COnvert volumetric to mass flux
  26
  27 \*---------------------------------------------------------------------------*/
  28
  29 #include "argList.H"
  30 #include "fvCFD.H"
  31
  32 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  33
  34 int main(int argc, char *argv[])
  35 {
  36     argList::validOptions.insert("rhoRef", "scalar");
  37
  38 #   include "setRootCase.H"
  39
  40     if (!args.options().found("rhoRef"))
  41     {
  42         FatalErrorIn(args.executable())
  43             << "Missing reference density"
  44             << endl;
  45
  46         FatalError.exit();
  47     }
  48
  49
  50     dimensionedScalar rhoRef
  51     (
  52         "rhoRef",
  53         dimDensity,
  54         readScalar(IStringStream(args.options()["rhoRef"])())
  55     );
  56
  57     Info<< "Reference density = " << rhoRef.value() << endl;
  58
  59
  60 #   include "createTime.H"
  61 #   include "createMesh.H"
  62
  63     Info<< "Time = " << runTime.value() << endl;
  64
  65     Info<< "    Reading p" << endl;
  66     volScalarField p
  67     (
  68         IOobject
  69         (
  70             "p",
  71             runTime.timeName(),
  72             mesh,
  73             IOobject::MUST_READ,
  74             IOobject::NO_WRITE
  75         ),
  76         mesh
  77     );
  78
  79     if (p.dimensions() == dimPressure)
  80     {
  81         Info<< "Pressure " << p.name() << " is a dynamic pressure.  "
  82             << "Nothing to do"
  83             << endl;
  84     }
  85     else if (p.dimensions() == dimPressure/dimDensity)
  86     {
  87         volScalarField rhoP
  88         (
  89             IOobject
  90             (
  91                 "rho" + p.name(),
  92                 runTime.timeName(),
  93                 mesh,
  94                 IOobject::NO_READ,
  95                 IOobject::NO_WRITE
  96             ),
  97             rhoRef*p
  98         );
  99
 100         Info<< "Correcting kinematic pressure " << p.name()
 101             << " into dynamic pressure " << rhoP.name()
 102             << endl;
 103
 104         rhoP.write();
 105     }
 106     else
 107     {
 108         Info<< "Cannot recognise dimensions of pressure field " << p.name()
 109             << ": " << p.dimensions() << ".  Ignoring" << endl;
 110
 111     }
 112
 113     Info<< "    Reading phi" << endl;
 114     surfaceScalarField phi
 115     (
 116         IOobject
 117         (
 118             "phi",
 119             runTime.timeName(),
 120             mesh,
 121             IOobject::MUST_READ,
 122             IOobject::NO_WRITE
 123         ),
 124         mesh
 125     );
 126
 127     if (phi.dimensions() == dimMass/dimTime)
 128     {
 129         Info<< "Flux " << phi.name() << " is a mass flux.  Nothing to do"
 130             << endl;
 131     }
 132     else if (phi.dimensions() == dimVolume/dimTime)
 133     {
 134         surfaceScalarField rhoPhi
 135         (
 136             IOobject
 137             (
 138                 "rho" + phi.name(),
 139                 runTime.timeName(),
 140                 mesh,
 141                 IOobject::NO_READ,
 142                 IOobject::NO_WRITE
 143             ),
 144             rhoRef*phi
 145         );
 146
 147         Info<< "Correcting volume flux " << phi.name()
 148             << " into mass flux " << rhoPhi.name()
 149             << endl;
 150
 151         rhoPhi.write();
 152     }
 153     else
 154     {
 155         Info<< "Cannot recognise dimensions of flux field " << phi.name()
 156             << ": " << phi.dimensions() << ".  Ignoring" << endl;
 157     }
 158
 159     Info<< "End\n" << endl;
 160
 161     return(0);
 162 }
 163
 164
 165 // ************************************************************************* //