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Porous Model for distributor

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Old   October 1, 2011, 05:23
Default Porous Model for distributor
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Hi,
I'm working on a distributor of a boiler: it should distribute the mix air+gas from the fan the to the heat exchanger (after have gone through a certain circuit).
Since the distributor is a very dense metallic web (1 mm thick), I prefer use porous model (to avoid a mesh too heavy).
I think that in this case it's better the Porous Zone rather than Porous jump because the distributor isn't plane but a little curved and the flow (turbolent) isn't perpendicular to it. Am I right?
Above all I need some advice to define Inertial & Viscous Resistances: is possible to calculate them without experiments?
From Fluent Manual I haven't found a good help (sometimes only C2 is calculated,ecc...)
Please help me

(excuse me for my horrible english)
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