Define porosity

February 16, 2009, 23:42

How to define specified porosity on the face of an object? (i.e. porous inlets with a thickness of 0.035m)

Thanks in advance.

February 17, 2009, 03:29

this depends the points you concern. for problem without energy equation, the porosity doesn't affect the result. anyway, the entrance is only 1-2 times the mean pore diameter.

February 17, 2009, 06:18

My problem concerns energy equation. If I created a brick in GAMBIT, is it true that i must make the volume (of the brick) as a fluid continuum b4 i can input porosity condition in Fluent?

lostinicem · February 24, 2012, 04:43

I know, a very old thread, but would you please correct me if Im wrong:
SO if I have a 2d geometry and through this problem (porous pipe, porous diffuser whatever it is) flows a fluid, I do not need to define the porosity if I dont use the energy equation?

February 16, 2009, 23:42	Define porosity	#1
laisquared Guest Posts: n/a	How to define specified porosity on the face of an object? (i.e. porous inlets with a thickness of 0.035m) Thanks in advance.

February 17, 2009, 03:29	Re: Define porosity	#2
whiz Guest Posts: n/a	this depends the points you concern. for problem without energy equation, the porosity doesn't affect the result. anyway, the entrance is only 1-2 times the mean pore diameter.

February 17, 2009, 06:18	Re: Define porosity	#3
laisquared Guest Posts: n/a	My problem concerns energy equation. If I created a brick in GAMBIT, is it true that i must make the volume (of the brick) as a fluid continuum b4 i can input porosity condition in Fluent?

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February 24, 2012, 04:43		#4
lostinicem New Member Horst Join Date: Jan 2012 Posts: 19 Rep Power: 14	I know, a very old thread, but would you please correct me if Im wrong: SO if I have a 2d geometry and through this problem (porous pipe, porous diffuser whatever it is) flows a fluid, I do not need to define the porosity if I dont use the energy equation?