: I have used convection coefficient as shown in the first image. I believe its correct, its for air. So to check correctness of material properties and convection properties, I have used structural steel as the material for the whole assembly ( Selected from General materials in ANSYS material library) and used Convection coefficient imported from Ansys itself.( Convection samples-stagnant Air- Horizontal cylinder). And after running the Steady state, I am getting a similar temperature distribution as shown below. Any input on this one?