Chun-Wei Tsai

Hello, thanks for you reply again Rob, really appreciated. So for the whole simulation, firstly I have set the model as Laminar and energy model. The cell zone condition there's I assigned the jet a 1 to the surface body, and for boundary I have used convection for my wall surface body with heat transfer coeff of 12, free stream T of -55.6C, and zero for wall thickness and heat gen. rate. For initialization I set the temeprature15C. I have some confusion about the calculation setting, I have used max iteration of 20 and time step size of 10 and 3600 time steps to simulate a 10 hr of cooling. The model I made is just a square box that's all, and the meshing was 200 division for each side and I used face meshing