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-   -   The ignition in FireFoam (http://www.cfd-online.com/Forums/openfoam/88646-ignition-firefoam.html)

ntd May 23, 2011 04:50

The ignition in FireFoam
 
Hello Foamers,
I am doing the test case with Firefoam (the case CoFlowFlame2D) but I can not understand how do we burn CH4 in air. Could someone tell me, please?
Thank you very much,
NTD

sixwp May 23, 2011 05:02

Hi ntd,

I don't know if that's what you want (you post is a bit vague...), but:
How CH4 burns in the air =>
CH4 + 2 O2 + N2 = CO2 + 2 H2O+ N2

ntd May 23, 2011 05:24

Thanks for your reply, Sam
I understand that there is this reaction but how did they do the ignition to burn CH4?

NTD

nation June 3, 2011 03:36

maybe?
 
I think the NTD want ask you where he can find the file which include the temperature ignition and all other the parameter and condition of the flammability.i have the same problem ! thank for your help

ntd June 3, 2011 04:52

Hi Nation
 
Thanks for your reply Nation,
Yes, that is the problem. I found in version 1.6 the file fireFoamPropertie likes below

/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.4 |
| \\ / A nd | Web: http://www.openfoam.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/

FoamFile
{
version 2.0;
format ascii;

root "";
case "";
instance "";
local "";

class dictionary;
object environmentalProperties;
}

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

ignited yes;

ignRampTime 0.2;

pRef pRef [1 -1 -2 0 0 0 0] 101325.0;

// ************************************************** *********************** //

But I can not find anything in fireFoam 1.7


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