thermal stratification of a water container

[pkladisios]

A large container is partially filled with water. The rest is occupied by air. For reasons of simplicity we assume a steady heat flux on the top surface (solar load) and a general convection that takes place on all surfaces. I want to model the thermal stratification that will take place within the container. I haven't found anything similar so far. Which analysis system would be more suitable? I tried using CFX (ansys 16) but i keep getting weird temperatures.

 

[lamboram]

if it is just flux and convection load, why not try it in Ansys Thermal? It might give pretty reasonable results. with CFX your initial BCs and parameters have a greater effect on the end results.