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.

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