CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

How to use wideBandAbsorptionEmission model?

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 8, 2021, 02:04
Default How to use wideBandAbsorptionEmission model?
  #1
Member
 
Bushra Rasheed
Join Date: Dec 2020
Posts: 97
Rep Power: 3
B_R_Khan is on a distinguished road
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
B_R_Khan is offline   Reply With Quote

Reply

Tags
fvdom, radiation modelling, segmentation fault, wideband

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[IHFOAM] The IHFOAM Thread Phicau OpenFOAM Community Contributions 374 September 12, 2022 03:26
interFoam wave propagation and explosion of Courant number and residuals ChiaraViola OpenFOAM Running, Solving & CFD 1 June 26, 2019 05:36
NEW turbulence TRANSITIONAL model giammy92 OpenFOAM 3 June 30, 2016 09:47
manualInjection model in sprayFoam Mentalo OpenFOAM Running, Solving & CFD 1 April 2, 2014 09:29
Problems bout CFD model of biomass gasification, Downdraft gasifier wanglong FLUENT 2 November 25, 2009 23:27


All times are GMT -4. The time now is 22:27.