how to set such B.C. in Fluent?

January 11, 2006, 15:59

Hi,

I want to simulate such a case by Fluent:

A cylinder with saturated or unsaturated soil. The top boundary condition is isothermal (300K) and permeable. The bottom B.C. is isothermal (350K) and impermeable. The lateral walls are insulated and impermeable.

Question 1. How can I set the top B.C. in Fluent? I used the pressure outlet B.C. for the top surface, while the results showed the temperature at the top is not a constant.

Question 2. For the pressure outlet B.C. in Fluent, does the backflow has the same property of the fluid used in the interior?

Thanks a lot.

January 12, 2006, 13:32

Ask again. Does anyone know anything about it?

January 11, 2006, 15:59	how to set such B.C. in Fluent?	#1
Sherri Guest Posts: n/a	Hi, I want to simulate such a case by Fluent: A cylinder with saturated or unsaturated soil. The top boundary condition is isothermal (300K) and permeable. The bottom B.C. is isothermal (350K) and impermeable. The lateral walls are insulated and impermeable. Question 1. How can I set the top B.C. in Fluent? I used the pressure outlet B.C. for the top surface, while the results showed the temperature at the top is not a constant. Question 2. For the pressure outlet B.C. in Fluent, does the backflow has the same property of the fluid used in the interior? Thanks a lot.

January 12, 2006, 13:32	Re: how to set such B.C. in Fluent?	#2
Sherri Guest Posts: n/a	Ask again. Does anyone know anything about it?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
How to show the transient case?	H.P.LIU	Phoenics	7	July 13, 2010 05:31
Mathematical form of B.C in fluent	engahmed	FLUENT	0	June 28, 2010 16:51
HOW TO SET FREE STREAM B.C IN UPPER SURFACE	MAHBUB	FLUENT	0	December 4, 2007 02:23
how to set CFL number in FLUENT	xiaofish	FLUENT	1	October 12, 2007 05:51
Env variable not set	gruber2	OpenFOAM Installation	5	December 30, 2005 05:27