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FireFoam: CO and H2 als fuel

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Old   January 9, 2020, 10:04
Default FireFoam: CO and H2 als fuel
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Tobi Wehr
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Hello everybody,

I've been watching the tutorial for fireFoam. It uses CH4. Now I want to replace the fuel CH4 with a mixture of CO and H2.
As radiation model I use fvdom. But I get an error.
Can anyone tell me what I have to change? Or is it because you cannot do a radiation calculation with fireFoam if there is CO in the fuel gas?

Thanks for your help!

Greetings

Tobi
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Old   January 9, 2020, 21:46
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It is hard to help without knowing what error you get / what you have tried. That said, some general information : fireFoam tutorials use a single-step, infinitely fast approach to combustion modeling. This is pretty fine for modeling diffusion (i.e. non premixed) problems, and from memory works for a single fuel. If you have multiple fuel components, you will probably want to look at using a multi component mixture (like the reacting foam tutorials) and then solve a corresponding reaction mechanism. I think the sandia/dlr flame tutorials use radiation as well.

Caelan
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Old   January 14, 2020, 01:33
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Tobi Wehr
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Hello clapointe,

please excuse my tardy reply.
You have already helped me a lot with that.
Can I test the tutorial with OpenFoam version 4.0 or do I need a newer version of OpenFoam?

Thanks for your help.

Greetings

Tobi
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Old   January 14, 2020, 01:40
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I do not remember off hand what version the tutorials were first included. I'd just check to see if it exists in version 4. If not, the newer ones should -- maybe 6 and definitely 7.

Caelan
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Old   January 14, 2020, 04:23
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Tobi Wehr
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Thanks a lot for your help.

Tobi
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firefoam, fuel, mixture, radiation

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