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Old   March 29, 2004, 04:32
Default volumetric heat source
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ioana
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Hi everbody!

I have to model a simple fire, that in other cfd code was set as a volumetric heat source. Does CFX 5.6 have this feature?(i was looking in help and i coudn't find something about this). Thank a lot, ioana
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Old   March 29, 2004, 18:40
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Glenn Horrocks
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Hi ioana,

Yes, CFX5 has volumetric heat sources.

Glenn
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Old   March 11, 2014, 14:13
Default Volumetric Heat Soruce
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Is this volumetric heat source linearly distributed in the fluid domain?
Or this heat source term is each cell based, the value depending on the cell velocity or flow rate?
Thanks!
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Old   March 11, 2014, 18:06
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Glenn Horrocks
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There are not many people still around after 10 years but I am still here. A bit older and crustier but still here.

You can define a volumetric heat source as constant or as a function of just about anything. So it can be set per control volume if you want to.
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Old   March 11, 2014, 21:47
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Quote:
Originally Posted by ghorrocks View Post
There are not many people still around after 10 years but I am still here. A bit older and crustier but still here.

You can define a volumetric heat source as constant or as a function of just about anything. So it can be set per control volume if you want to.
-------------------------------------------------------------------------
Hi Glenn,

Ok, is the source value uniformly distributed to each cell in the control volume?

Thanks,

Allan
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Old   March 11, 2014, 21:53
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The whole point of a control volume is that a single value of the variable is representative of the entire control volume. This applies to the source term as well.

But note there is an exception to this - the integration points in CFX means that fluxes are calculated more accurately than if based on simple control volumes with single values. But this is just being pedantic.
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