src/thermophysicalModels/reactionThermo/mixtures/egrMixture/egrMixture.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
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   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 "egrMixture.H"
  27 #include "fvMesh.H"
  28
  29 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
  30
  31 template<class ThermoType>
  32 const char* Foam::egrMixture<ThermoType>::specieNames_[3] = {"ft", "b", "egr"};
  33
  34
  35 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
  36
  37 template<class ThermoType>
  38 Foam::egrMixture<ThermoType>::egrMixture
  39 (
  40     const dictionary& thermoDict,
  41     const fvMesh& mesh,
  42     const objectRegistry& obj
  43 )
  44 :
  45     basicMultiComponentMixture
  46     (
  47         thermoDict,
  48         speciesTable(nSpecies_, specieNames_),
  49         mesh,
  50         obj
  51     ),
  52
  53     stoicRatio_(thermoDict.lookup("stoichiometricAirFuelMassRatio")),
  54
  55     fuel_(thermoDict.lookup("fuel")),
  56     oxidant_(thermoDict.lookup("oxidant")),
  57     products_(thermoDict.lookup("burntProducts")),
  58
  59     mixture_("mixture", fuel_),
  60
  61     ft_(Y("ft")),
  62     b_(Y("b")),
  63     egr_(Y("egr"))
  64 {}
  65
  66
  67 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
  68
  69 template<class ThermoType>
  70 const ThermoType& Foam::egrMixture<ThermoType>::mixture
  71 (
  72     const scalar ft,
  73     const scalar b,
  74     const scalar egr
  75 ) const
  76 {
  77     if (ft < 0.0001)
  78     {
  79         return oxidant_;
  80     }
  81     else
  82     {
  83
  84         scalar fu = b*ft + (1.0 - b)*fres(ft, stoicRatio().value());
  85         scalar ox = 1 - ft - (ft - fu)*stoicRatio().value();
  86
  87         fu *= (1.0 - egr);
  88         ox *= (1.0 - egr);
  89
  90         scalar pr = 1 - fu - ox;
  91
  92         mixture_ = fu/fuel_.W()*fuel_;
  93         mixture_ += ox/oxidant_.W()*oxidant_;
  94         mixture_ += pr/products_.W()*products_;
  95
  96         return mixture_;
  97     }
  98 }
  99
 100
 101 template<class ThermoType>
 102 void Foam::egrMixture<ThermoType>::read(const dictionary& thermoDict)
 103 {
 104     stoicRatio_ = dimensionedScalar
 105     (
 106         thermoDict.lookup("stoichiometricAirFuelMassRatio")
 107     );
 108
 109     fuel_ = ThermoType(thermoDict.lookup("fuel"));
 110     oxidant_ = ThermoType(thermoDict.lookup("oxidant"));
 111     products_ = ThermoType(thermoDict.lookup("burntProducts"));
 112 }
 113
 114
 115 // ************************************************************************* //