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Old   July 15, 2001, 02:02
Default Radiation & Porous Media
Greg Perkins
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Does anybody know how Fluent treats Radiation i) within porous media zones ii) at the boundary between a porous zone and a normal fluid zone

I can't find any mention of this treatment in the manuals so I presume that it treats it as a normal fluid zone. But is this right?

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Old   July 15, 2001, 03:11
Default Re: Radiation & Porous Media
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As far as I know. the only thing that fluent cares about in porous zone, is the sink term form the Darcy's. The rest is same as the fluid zone. Ugur
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Old   July 15, 2001, 23:16
Default Re: Radiation & Porous Media
Greg Perkins
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Yeah I sort of figured that too - which worries me a little - assuming the porous zone is reasonably dense with solid, radiation heat transfer to it, won't be insignificant when temperatures are high. I would have thought a reasonable approach would be to treat the interface as a wall for radiation, but as an interior cell for heat and mass transport. At the moment this can't be done.

So I suppose one needs to add a souce term in the radiation/energy equations to model this. Has anybody tried????

Ahh, The joys of Fluent!


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