Spurious oscillations using HLLC

1

Hello,

using the HLLC riemann solver I get very strong oscillations nearby strong expansion zones (the flow there must be smooth as the surrounding region is), do you have any insight on that on how to mitigate the behaviour/avoiding it at all?

Best regards,

2

What happens if you run the case using the exact Riemann solver?

Regards, Freddie.

3

It does not impose the no slip correctly.
I have a nonzero velocity at the wall.

Any idea on this behaviour?

Best regards