C N
Ansys Employee

Hello,

I recommend you to run the simulation for a longer time with solid surface being in contact with fluid case. Theoretically, the entire amount of 10000w/m^2 heat flux has to transfer to the fluid. Please provide the  boundary conditions you used at the interface. I need your meshing details for further understanding your problem .Please refer this link for further understanding on how to model heat transfer problems

14.2. Modeling Conductive and Convective Heat Transfer (ansys.com)

If you cannot access it, kindly refer this link Using Help with links (ansys.com)

Thanks