[Santos-Dumont]

Hi,

I would like to simulate the temperature of the surface of a flying aircraft. The main point of interest is the impact temperature on the leading edges to determine icing datas.
I didn't succeed in modeling it with Fluent. I used different models (Laminar, Spalart Allmart, k-Espilon) with a coupled solver but I get unsatisfying results.
The thing is quite disturbing because after like 20 iterations I get a result that looks pretty good with a higher temperature on the leading edges. But when I iterate more the aircraft surface temperature become constant except for some small hot and randomly located zones.
I activated the viscous heating, and I set the wall and the external temperature at the same value (240 K). The flow speed is 180 m/s and the air density 0.5 kg/m3.

What would you do to solve such a case in terms of model, boundary settings....? There is no tutorial that is about the impact temperature.