[koalabryant]

Hi guys,

I've been simulating a 2d airfoil and I've obtained almost perfect results at high Re (Re 3e6) with SST transition model.

However, whenever I try to simulate at low Re I run into a lot of problems with convergence (Re 3e4):

I've attached a picture where you can see my problem.

I don't know exactly why, but the Cl reaches a steady value and then, it starts to fall.

This happens at 2º of AoA