I am running an external aerodynamic simulation of a concept aircraft model and I found that the pressure is diverging very early in the simulation. I ran multiple models before with a NACA 0010 airfoil and didn’t have this issue, however, I recently changed it to a significantly more complicated one and now the simulation is crashing constantly along the trailing edge of the wing.
I attempted refining the grid size by reducing the local element size and the refinement region elements but even with a mesh of about 40 million cells, the same thing occurs. I realise that the grid is by no means perfect however I’m not very experienced with SimScale meshing tools and I don’t want to just keep throwing more cells at the model. Perhaps there’s an issue elsewhere? I am using the k-omega SST model, I have the model at a low angle of attack and it’s set to a low velocity of about 30m/s.
Do you have any ideas what could be the cause of this? Below I have attached a screenshot of the airfoil when the mesh is about 20 million cells. Let me know if you need any more details.
Thank you in advance,