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src
thermophysicalModels
radiation
submodels
absorptionEmissionModel
greyMeanAbsorptionEmission
greyMeanAbsorptionEmission.H
Go to the documentation of this file.
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2008-2010 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::radiation::greyMeanAbsorptionEmission
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Description
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greyMeanAbsorptionEmission radiation absorption and emission coefficients
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for continuous phase
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The coefficients for the species in the Look up table have to be specified
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for use in moles x P [atm], i.e. (k[i] = species[i]*p*9.869231e-6).
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The coefficients for CO and soot or any other added are multiplied by the
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respective mass fraction being solved
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All the species in the dictionary need either to be in the look-up table or
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being solved. Conversely, all the species solved do not need to be included
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in the calculation of the absorption coefficient
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The names of the species in the absorption dictionary must match exactly the
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name in the look-up table or the name of the field being solved
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The look-up table ("speciesTable") file should be in constant
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i.e. dictionary
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LookUpTableFileName "speciesTable";
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EhrrCoeff 0.0;
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CO2
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{
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Tcommon 300.; // Common Temp
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invTemp true; // Is the polynomial using inverse temperature?
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Tlow 300.; // Low Temp
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Thigh 2500.; // High Temp
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loTcoeffs // coeffs for T < Tcommon
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(
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0 // a0 +
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0 // a1*T +
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0 // a2*T^(+/-)2 +
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0 // a3*T^(+/-)3 +
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0 // a4*T^(+/-)4 +
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0 // a5*T^(+/-)5 +
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);
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hiTcoeffs // coeffs for T > Tcommon
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(
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18.741
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-121.31e3
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273.5e6
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-194.05e9
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56.31e12
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-5.8169e15
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);
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}
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SourceFiles
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greyMeanAbsorptionEmission.C
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\*---------------------------------------------------------------------------*/
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#ifndef greyMeanAbsorptionEmission_H
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#define greyMeanAbsorptionEmission_H
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#include <
radiation/interpolationLookUpTable.H
>
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#include <
radiation/absorptionEmissionModel.H
>
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#include <
OpenFOAM/HashTable.H
>
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#include <
radiation/absorptionCoeffs.H
>
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#include <
basicThermophysicalModels/basicThermo.H
>
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace
Foam
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{
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namespace
radiation
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{
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/*---------------------------------------------------------------------------*\
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Class greyMeanAbsorptionEmission Declaration
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\*---------------------------------------------------------------------------*/
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class
greyMeanAbsorptionEmission
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:
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public
absorptionEmissionModel
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{
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public
:
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// Public data
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// - Maximum number of species considered for absorptivity
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static
const
int
nSpecies_
= 5;
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// Absorption Coefficients
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absorptionCoeffs
coeffs_
[
nSpecies_
];
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private
:
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// Private data
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//- Absorption model dictionary
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dictionary
coeffsDict_;
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//- Hash table of species names
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HashTable<label>
speciesNames_;
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// Indices of species in the look-up table
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FixedList<label, nSpecies_>
specieIndex_;
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// Look-up table of species related to ft
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mutable
interpolationLookUpTable<scalar>
lookUpTable_;
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// Thermo package
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const
basicThermo
& thermo_;
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//- Emission constant coefficient
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const
scalar EhrrCoeff_;
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//- Pointer list of species in the registry involved in the absorption
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UPtrList<volScalarField>
Yj_;
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public
:
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//- Runtime type information
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TypeName
(
"greyMeanAbsorptionEmission"
);
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// Constructors
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//- Construct from components
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greyMeanAbsorptionEmission
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(
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const
dictionary
&
dict
,
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const
fvMesh
&
mesh
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);
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// Destructor
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virtual
~greyMeanAbsorptionEmission
();
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// Member Operators
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// Access
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// Absorption coefficient
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//- Absorption coefficient for continuous phase
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tmp<volScalarField>
aCont
(
const
label bandI = 0)
const
;
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// Emission coefficient
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//- Emission coefficient for continuous phase
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tmp<volScalarField>
eCont
(
const
label bandI = 0)
const
;
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// Emission contribution
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//- Emission contribution for continuous phase
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tmp<volScalarField>
ECont
(
const
label bandI = 0)
const
;
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// Member Functions
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inline
bool
isGrey
()
const
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{
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return
true
;
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}
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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}
// End namespace radiation
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}
// End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************ vim: set sw=4 sts=4 et: ************************ //