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How to use wideBandAbsorptionEmission model?

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Old   November 8, 2021, 03:04
Default How to use wideBandAbsorptionEmission model?
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Bushra Rasheed
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Hi!

I want to use wideBandAbsoprtionEmission model in fvDOM and defined the radiation properties as:

Code:
radiation on;

radiationModel  fvDOM;

fvDOMCoeffs
{
    nPhi        3;
    nTheta      5;
    tolerance   1e-3;
    maxIter     10;
}

// Number of flow iterations per radiation iteration
solverFreq 5;
constantAbsorptionEmissionCoeffs
{
    absorptivity    absorptivity    [ m^-1 ]       0.01;
    emissivity      emissivity      [ m^-1 ]       0.01;
    E               E               [ kg m^-1 s^-3 ]  0;
}
absorptionEmissionModel wideBandAbsorptionEmission;

wideBandAbsorptionEmissionCoeffs
{
    lookUpTableFileName     none;
    band0
        {
            bandLimits (1.0e-6 2.63e-6);
            EhrrCoeff       0.0;
            species
            {
                CH4
                {
                    Tcommon         300.;
                    Tlow            300.;
                    Thigh           2500.;
                    invTemp         false;
                    loTcoeffs (0 0 0 0 0 0) ;
                    hiTcoeffs (.1 0 0 0 0 0);
                }
                CO2
                {
                    Tcommon         300.;
                    Tlow            300.;
                    Thigh           2500.;
                    invTemp         false;
                    loTcoeffs (0 0 0 0 0 0) ;
                    hiTcoeffs (.1 0 0 0 0 0);
                }
                H2O
                {
                    Tcommon         300.;
                    Tlow            300.;
                    Thigh           2500.;
                    invTemp         false;
                    loTcoeffs (0 0 0 0 0 0) ;
                    hiTcoeffs (.1 0 0 0 0 0);
                }
                Ysoot
                {
                    Tcommon         300.;
                    Tlow            300.;
                    Thigh           2500.;
                    invTemp         false;
                    loTcoeffs (0 0 0 0 0 0) ;
                    hiTcoeffs (.1 0 0 0 0 0);
                }
            }
        }

}

scatterModel    none;

sootModel       none;
This gives me error:
Code:
There is no lookup table and the specie
CO2
 is not found
I also tried removing constant coefficients, defining the band0 code as bands in constant folder and changed lookUpTable from none to band. My bands lookup table file in constant folder is:
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  v2106                                 |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    location    "constant";
    object      bands;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
band0
        {
            bandLimits (1.0e-6 2.63e-6);
            EhrrCoeff       0.0;
            species
            {
                CH4
                {
                    Tcommon         300.;
                    Tlow            300.;
                    Thigh           2500.;
                    invTemp         false;
                    loTcoeffs (0 0 0 0 0 0) ;
                    hiTcoeffs (.1 0 0 0 0 0);
                }
                CO2
                {
                    Tcommon         300.;
                    Tlow            300.;
                    Thigh           2500.;
                    invTemp         false;
                    loTcoeffs (0 0 0 0 0 0) ;
                    hiTcoeffs (.1 0 0 0 0 0);
                }
                H2O
                {
                    Tcommon         300.;
                    Tlow            300.;
                    Thigh           2500.;
                    invTemp         false;
                    loTcoeffs (0 0 0 0 0 0) ;
                    hiTcoeffs (.1 0 0 0 0 0);
                }
                Ysoot
                {
                    Tcommon         300.;
                    Tlow            300.;
                    Thigh           2500.;
                    invTemp         false;
                    loTcoeffs (0 0 0 0 0 0) ;
                    hiTcoeffs (.1 0 0 0 0 0);
                }
            }
        }
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
It gave me segmentation fault:

Code:
in /apps/OpenFOAM/OpenFOAM-v2106/platforms/linux64GccDPInt32Opt/bin/buoyantPimpleFoam
[v100b:61889] *** Process received signal ***
[v100b:61889] Signal: Segmentation fault (11)
If I don't remove constantAbsoprtionEmission coefficeints from radiation properties, then it gives me error of no "Fields" found in constant/bands.

Has anyone used wideBandAbsoptionEmission model successfully?

Thanks
Bushra
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Tags
fvdom, radiation modelling, segmentation fault, wideband

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