mixtureAdiabaticFlameT.C

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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-------------------------------------------------------------------------------
    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2021 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Application
    mixtureAdiabaticFlameT
 
Group
    grpThermophysicalUtilities
 
Description
    Calculate adiabatic flame temperature for a given mixture
    at a given temperature.
 
\*---------------------------------------------------------------------------*/
 
#include "argList.H"
#include "dictionary.H"
#include "IFstream.H"
#include "OSspecific.H"
#include "etcFiles.H"
 
#include "specie.H"
#include "perfectGas.H"
#include "thermo.H"
#include "janafThermo.H"
#include "absoluteEnthalpy.H"
#include "mixture.H"
 
using namespace Foam;
 
typedef species::thermo<janafThermo<perfectGas<specie>>, absoluteEnthalpy>
    thermo;
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
int main(int argc, char *argv[])
{
    argList::addNote
    (
        "Calculate adiabatic flame temperature for a given mixture"
        " at a given temperature"
    );
 
    argList::noParallel();
    argList::noFunctionObjects();  // Never use function objects
    argList::addArgument("controlFile");
 
    argList args(argc, argv);
 
    const auto controlFileName = args.get<fileName>(1);
 
    // Construct control dictionary
    IFstream controlFile(controlFileName);
 
    // Check controlFile stream is OK
    if (!controlFile.good())
    {
        FatalErrorInFunction
            << "Cannot read file " << controlFileName
            << abort(FatalError);
    }
 
    dictionary control(controlFile);
 
 
    const scalar P(control.get<scalar>("P"));
    const scalar T0(control.get<scalar>("T0"));
    mixture rMix(control.lookup("reactants"));
    mixture pMix(control.lookup("products"));
 
 
    Info<< nl << "Reading thermodynamic data dictionary" << endl;
 
    fileName thermoDataFileName(findEtcFile("thermoData/thermoData"));
 
    // Construct control dictionary
    IFstream thermoDataFile(thermoDataFileName);
 
    // Check thermoData stream is OK
    if (!thermoDataFile.good())
    {
        FatalErrorInFunction
            << "Cannot read file " << thermoDataFileName
            << abort(FatalError);
    }
 
    dictionary thermoData(thermoDataFile);
 
 
    thermo reactants
    (
        rMix[0].volFrac()*thermo(thermoData.subDict(rMix[0].name()))
    );
 
    for (label i = 1; i < rMix.size(); i++)
    {
        reactants = reactants
            + rMix[i].volFrac()*thermo(thermoData.subDict(rMix[i].name()));
    }
 
 
    thermo products
    (
        2*pMix[0].volFrac()*thermo(thermoData.subDict(pMix[0].name()))
    );
 
    for (label i = 1; i < pMix.size(); i++)
    {
        products = products
            + 2*pMix[i].volFrac()*thermo(thermoData.subDict(pMix[i].name()));
    }
 
    Info<< "Adiabatic flame temperature of mixture " << rMix.name() << " = "
         << products.THa(reactants.Ha(P, T0), P, 1000.0) << " K" << endl;
 
    return 0;
}
 
 
// ************************************************************************* //