src/postProcessing/functionObjects/utilities/staticPressure/staticPressure.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   4    \\    /   O peration     |
   5     \\  /    A nd           | Copyright (C) 2009-2009 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 "staticPressure.H"
  28 #include "volFields.H"
  29 #include "dictionary.H"
  30
  31 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
  32
  33 namespace Foam
  34 {
  35     defineTypeNameAndDebug(staticPressure, 0);
  36 }
  37
  38 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
  39
  40 bool Foam::staticPressure::isKinematicPressure()
  41 {
  42     const volScalarField& p = obr_.lookupObject<volScalarField>(pName_);
  43
  44     return p.dimensions() == sqr(dimLength)/sqr(dimTime);
  45 }
  46
  47
  48 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
  49
  50 Foam::staticPressure::staticPressure
  51 (
  52     const word& name,
  53     const objectRegistry& obr,
  54     const dictionary& dict,
  55     const bool loadFromFiles
  56 )
  57 :
  58     name_(name),
  59     obr_(obr),
  60     active_(true),
  61     pName_(dict.lookupOrDefault<word>("p", "p")),
  62     rho_(readScalar(dict.lookup("rho")))
  63 {
  64     // Check if the available mesh is an fvMesh, otherwise deactivate
  65     if (!isA<fvMesh>(obr_))
  66     {
  67         active_ = false;
  68         WarningIn
  69         (
  70             "staticPressure::staticPressure"
  71             "(const objectRegistry&, const dictionary&)"
  72         )   << "No fvMesh available, deactivating." << nl
  73             << endl;
  74     }
  75     else
  76     {
  77         // Check if the pressure is kinematic pressure, otherwise deactivate
  78         if (!isKinematicPressure())
  79         {
  80             active_ = false;
  81             WarningIn
  82             (
  83                 "staticPressure::staticPressure"
  84                 "(const objectRegistry&, const dictionary&)"
  85             )   << "Pressure is not kinematic pressure, deactivating." << nl
  86                 << endl;
  87         }
  88     }
  89
  90     read(dict);
  91 }
  92
  93
  94 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
  95
  96 Foam::staticPressure::~staticPressure()
  97 {}
  98
  99
 100 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 101
 102 void Foam::staticPressure::read(const dictionary& dict)
 103 {
 104     if (active_)
 105     {
 106         dict.readIfPresent("p", pName_);
 107         dict.lookup("rho") >> rho_;
 108     }
 109 }
 110
 111
 112 void Foam::staticPressure::execute()
 113 {
 114     // Do nothing - only valid on write
 115 }
 116
 117
 118 void Foam::staticPressure::end()
 119 {
 120     // Do nothing - only valid on write
 121 }
 122
 123
 124 void Foam::staticPressure::write()
 125 {
 126     if (active_)
 127     {
 128         const volScalarField& p = obr_.lookupObject<volScalarField>(pName_);
 129
 130         volScalarField pStatic
 131         (
 132             IOobject
 133             (
 134                 "pStatic",
 135                 obr_.time().timeName(),
 136                 obr_,
 137                 IOobject::NO_READ
 138             ),
 139             dimensionedScalar("rho", dimDensity, rho_)*p
 140         );
 141
 142         pStatic.write();
 143     }
 144 }
 145
 146
 147 // ************************************************************************* //