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October 4, 2004, 00:07 |
Porous jump model
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#1 |
Guest
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i am currently trying to model a FLUENT 2D perforated plate with mach 2 flow across it, using the perforated plate with suction as a means of boundary layer control. i am having trouble with the values of permeability, porous medium thickness and pressure jump coefficient in FLUENT and would like any advide on what values i should be suing for these fields
cheers alastair |
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October 13, 2004, 01:44 |
Re: Porous jump model
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#2 |
Guest
Posts: n/a
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G'day alastair,
Not certain, I had a similar problem with a permeable facing used for acoustic foams - if you have not tried the archives under in cfd-online then I sufggest you you do as I think I saw a similar problem there. You should look at the theoryin the fluent help, and how the model is applicable. I am just guessing that the thickness is the thickness of the plate - as in my problem (simple incompressible flow) this is the case. The pressure drop across a pressure drop is proportional to With permeability I am not sure what the deal is with supersonic flow. In acoustics permeability is the material property - however some investigators have tried empirical formulae - which is unlikely to be applicable to your case Good Luck |
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October 27, 2011, 06:02 |
porous jump model
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#3 |
New Member
vittal
Join Date: Aug 2011
Posts: 10
Rep Power: 14 |
How to calculate permeability (k,m2) when porosity is known and thickness of the porous medium is known.
velocity =5.6 m/s Discrete phase model primary phase water vapor discrete phase liquid droplets |
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