Fluent Transient Conduction Problem

Ravindra123 · May 10, 2013, 05:18

Hi all,
I am solving the 2D heat transfer in a rectangular domain(plate). The one side of the plate is subjected to convective BC with h(heat transfer coeff.) changing with time. I have given the sinusoidal profile of h from Define-profile menu in the fluent. The problem with my solution is that after doing transient analysis the heat transfer coeff at that wall is too large. e.g. when i did simulation with h=2000*sin(time) (used in the profile), the result i am getting is around 30000 for the h value.
Any help would be appreciated.

ahvz · May 10, 2013, 11:10

Please check the time steps (use automatic time steps) might be related to your problem...

May 10, 2013, 05:18	Fluent Transient Conduction Problem	#1
Ravindra123 New Member Ravindra Join Date: May 2013 Posts: 1 Rep Power: 0	Hi all, I am solving the 2D heat transfer in a rectangular domain(plate). The one side of the plate is subjected to convective BC with h(heat transfer coeff.) changing with time. I have given the sinusoidal profile of h from Define-profile menu in the fluent. The problem with my solution is that after doing transient analysis the heat transfer coeff at that wall is too large. e.g. when i did simulation with h=2000*sin(time) (used in the profile), the result i am getting is around 30000 for the h value. Any help would be appreciated.

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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Inverse and Transient Heat Transfer Problem on commercial software: is it possible?	rogbrito	CFX	1	January 29, 2012 17:48
How can FLUENT be used to model a transient problem with changing geometry?	Fascal	FLUENT	0	June 30, 2010 15:21
solving a conduction problem in FLUENT using UDF	Avin2407	Fluent UDF and Scheme Programming	0	April 13, 2010 01:49
transient heat transfer problem	kamal	FLUENT	2	June 29, 2008 14:55
Fluent - license problem.	Marcin	FLUENT	1	March 4, 2005 11:41

May 10, 2013, 11:10		#2
ahvz Member Moha Join Date: Mar 2013 Location: EU Posts: 62 Rep Power: 2	Please check the time steps (use automatic time steps) might be related to your problem...