Define porosity

February 17, 2009, 00:42

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, 04:29

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, 07:18

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, 05:43

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 17, 2009, 00:42	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, 04:29	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, 07:18	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?

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
define mass transfer - define source	greg	FLUENT	4	November 24, 2018 07:34
More than 1 porosity value possible	achimfrahmmunterscom	OpenFOAM Running, Solving & CFD	2	February 12, 2009 08:36
How to define porosity ?	Jaimin	CFX	0	February 4, 2006 11:32
how to define the porosity	limingtiger	Siemens	4	November 1, 2005 03:01
define my own DEFINE macro? to model pithing naca	calogero	FLUENT	0	April 10, 2003 06:10

February 24, 2012, 05:43		#4
lostinicem New Member Horst Join Date: Jan 2012 Posts: 19 Rep Power: 15	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?