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-   -   Fluent Transient Conduction Problem (http://www.cfd-online.com/Forums/fluent/117534-fluent-transient-conduction-problem.html)

Ravindra123 May 10, 2013 05:18

Fluent Transient Conduction Problem
 
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...

Ravindra123 June 25, 2013 07:24

How to give automatic time stepping?

ahvz June 25, 2013 10:53

by change time steps from "fix" to "adaptive" in "run calculation" category then you will need to give end time at setting window...


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