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Reply To: Problem in example code porousPoiseuille2d


Dear Dr. Mathias,

I tried the resolutions from 20 to 200. In each case, the ratio of dx^2/dt is consistent, which means the kinematic viscosity conversion factors are unique in all cases.

The velocity profiles did not converge to the analytical one, but still converge to the highest resolution case.

I plotted the velocity profiles for all cases here. The L2 error compared with the analytical solution is alose compared.

velocity profiles

error analysis

Junwei Guo