porous surface in a room

tmeysam92 · December 17, 2013, 06:59

Hi
There is a porous surface whose fluid porosity is 0.2337 and air is passing through the surface. What I should put for viscous resistance in fluent?
Is there any formula to calculate it?
Regards

oj.bulmer · December 18, 2013, 08:08

You would need some data that would give you a relation between pressure drop at different flow rates. You can then devise the loss coefficient from this and plug the values in porus jump boundary condition. The procedure is very well documented in the Help documentation.

skikay · December 20, 2013, 05:37

Darcy law to calculate

December 17, 2013, 06:59	porous surface in a room	#1
tmeysam92 Senior Member tmeysam92 Join Date: Jun 2011 Posts: 135 Rep Power: 15	Hi There is a porous surface whose fluid porosity is 0.2337 and air is passing through the surface. What I should put for viscous resistance in fluent? Is there any formula to calculate it? Regards

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December 18, 2013, 08:08		#2
oj.bulmer Senior Member OJ Join Date: Apr 2012 Location: United Kindom Posts: 473 Rep Power: 20	You would need some data that would give you a relation between pressure drop at different flow rates. You can then devise the loss coefficient from this and plug the values in porus jump boundary condition. The procedure is very well documented in the Help documentation.