applications/utilities/errorEstimation/simpleFoamResidual/simpleFoamResidual.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 Application
  25     simpleFoamResidual
  26
  27 Author
  28     Hrvoje Jasak, Wikki Ltd.  All rights reserved.
  29
  30 Description
  31     Calculate and write residual for a simpleFoam momentum equation
  32
  33 \*---------------------------------------------------------------------------*/
  34
  35 #include "fvCFD.H"
  36 #include "singlePhaseTransportModel.H"
  37 #include "RASModel.H"
  38
  39 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  40
  41 int main(int argc, char *argv[])
  42 {
  43
  44     timeSelector::addOptions();
  45
  46 #   include "setRootCase.H"
  47 #   include "createTime.H"
  48
  49     instantList timeDirs = timeSelector::select0(runTime, args);
  50
  51 #   include "createMesh.H"
  52
  53     forAll(timeDirs, timeI)
  54     {
  55         runTime.setTime(timeDirs[timeI], timeI);
  56
  57         Info<< "Time = " << runTime.timeName() << endl;
  58
  59         IOobject Uheader
  60         (
  61             "U",
  62             runTime.timeName(),
  63             mesh,
  64             IOobject::MUST_READ
  65         );
  66
  67         IOobject pHeader
  68         (
  69             "p",
  70             runTime.timeName(),
  71             mesh,
  72             IOobject::MUST_READ
  73         );
  74
  75         // Check U exists
  76         if (Uheader.headerOk() && pHeader.headerOk())
  77         {
  78             mesh.readUpdate();
  79
  80             Info<< "    Reading U" << endl;
  81             volVectorField U(Uheader, mesh);
  82
  83             Info<< "    Reading p" << endl;
  84             volScalarField p(pHeader, mesh);
  85
  86 #           include "createPhi.H"
  87
  88             singlePhaseTransportModel laminarTransport(U, phi);
  89
  90             autoPtr<incompressible::RASModel> turbulence
  91             (
  92                 incompressible::RASModel::New(U, phi, laminarTransport)
  93             );
  94
  95             Info<< "    Calculating uResidual" << endl;
  96             volScalarField uResidual
  97             (
  98                 IOobject
  99                 (
 100                     "uResidual",
 101                     runTime.timeName(),
 102                     mesh,
 103                     IOobject::NO_READ
 104                 ),
 105                 mag
 106                 (
 107                     fvc::div(phi, U)
 108                   + fvc::div(turbulence->R())
 109                   + fvc::grad(p)
 110                 )
 111             );
 112
 113             Info<< "uResidual max: " << max(uResidual.internalField())
 114                 << " mean: "
 115                 << sum(uResidual.internalField()*mesh.V())/
 116                        sum(mesh.V()).value()
 117                 << endl;
 118
 119             uResidual.write();
 120         }
 121         else
 122         {
 123             Info<< "    No U or p" << endl;
 124         }
 125
 126         Info<< endl;
 127     }
 128
 129     Info<< "End\n" << endl;
 130
 131     return(0);
 132 }
 133
 134
 135 // ************************************************************************* //