Velocity field diverging in simulation

Hi I am facing a problem in the simulation where the velocity field is diverging and I can’t seem to figure out why, may you please help me? Down below is the image of the error and link for the project


https://www.simscale.com/workbench/?pid=3332829059349698068&mi=run%3A15%2Csimulation%3A12&mt=SIMULATION_RUN

Hello @najialabed2000 ,

Thanks for the details - have you already gone through the steps described in this article? Do you see any unecessarily detailed regions where the divergence started?

If that’s the case, make sure to clean-up the region in CAD and you will obtain a better quality mesh.

Cheers