porous media (cellzone)

thisisit · November 23, 2011, 04:29

hi guys,

i simulate a perforated metal plate and two other layers as one porous cellzone. i got data for the pressure drop for different velocities so i calculated the parameters c2 and 1/alpha (viscous and inertial coefficients).
my problem is, that the plate the two other layers only allow flow in one direction and i have to assign coefficients for x, y and z.
i dont think its accurate to make it a homogenous cellzone with same coefficients in all direction. i thought about making it very very large in the two other direction.. but dont know if thats a valid method to handle this problem. is there another solution for my case?

delaneyluke · November 24, 2011, 04:32

I hope i'm not to late in replying,
But yr guess was correct, you need to increase the coeeficients in the other 2 directions (my practice is by about 100 times)

Regards
Luke

November 23, 2011, 04:29	porous media (cellzone)	#1
thisisit New Member andi Join Date: Jul 2011 Posts: 10 Rep Power: 15	hi guys, i simulate a perforated metal plate and two other layers as one porous cellzone. i got data for the pressure drop for different velocities so i calculated the parameters c2 and 1/alpha (viscous and inertial coefficients). my problem is, that the plate the two other layers only allow flow in one direction and i have to assign coefficients for x, y and z. i dont think its accurate to make it a homogenous cellzone with same coefficients in all direction. i thought about making it very very large in the two other direction.. but dont know if thats a valid method to handle this problem. is there another solution for my case?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Multiphase Porous Media Flow - Convergence Issues	VT_Bromley	FLUENT	8	May 30, 2024 03:59
Porous media setup issues in Fluent	Bernard Van	FLUENT	29	January 26, 2017 05:09
How to model granular flow through porous media	Axius	FLUENT	2	August 7, 2014 11:34
species mass source in porous media ?	PK	FLUENT	0	February 16, 2007 12:12
porous media: Fluent or Star-CD?	Igor	Main CFD Forum	0	December 5, 2002 16:16

November 24, 2011, 04:32		#2
delaneyluke Senior Member Join Date: Mar 2009 Location: Indiana, US Posts: 186 Rep Power: 17	I hope i'm not to late in replying, But yr guess was correct, you need to increase the coeeficients in the other 2 directions (my practice is by about 100 times) Regards Luke