Can you tell us a bit more about what you have tried? For example, in the
limit of low Re (say Re=0.1 or Re=1) does your non-linear solver converge?
Have you tried making a manufactured solution to get your convergence order
to see if everything is all fine?
RE=200 can be quite heavy for straigh
In this tutorial, multigrid is using Chebysev sweeps around a point Jacobi
solver as smoother. Latter needs the (inverse) of the diagonal.
Hope this helps.
Peter
On Friday, January 27, 2023 at 11:07:21 AM UTC+1 13274...@163.com wrote:
> hello everyone!
> I am learning about the step37 and want