[Dónal]

Hello,

I'm running a 3D compressible (M=2.5) RANS simulation in SU2 version 7.0.0 and the results I am getting are not smooth. The smoothness is clearly linked to the mesh, and it appears that the issue may be with the calculation between cell edges and cell centres. Slices of the simulation with the x component of vorticity are attached for clarity, along with my config file

I have tried different convective schemes and got similar results on each. A similar effect is apparent in both unstructured and voxel type meshes, however it is more apparent in voxel meshes due to their regularity. I have also tried different slope limiters and turning off the slope limiter and seen no change in this effect. I should note that the best convergence I have managed to get with this solution is residuals almost at 10^-3 and less than 1% change in results over 1000s of iterations.

I am also having trouble running the same cases in version 7.2.0, but this is a separate issue and I will put this in a separate post.

Any ideas on what may be causing this or other things to try?

MeshEffectVoxel.jpg

MeshEffectVoxelwithEdges.jpg

MeshEffectDelaunay.jpg

closeup.jpg

Medium.txt