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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › VOF – Experiencing convergence difficulties › Reply To: VOF – Experiencing convergence difficulties

June 3, 2024 at 12:48 pm
Rob
Forum Moderator

Aspect ratio is very high if the free surface cuts across one of those cells. 

Please post VOF and velocity contours on the centre plane.  

You can try dropping the Courant Number to nearer 10, but the issue may be that the model is transient - multiphase flows often are.Â