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Ansys Learning Forum Forums Discuss Simulation Fluids part of residuals smoothed and turned to a straight line, why? Reply To: part of residuals smoothed and turned to a straight line, why?

Federico
Ansys Employee

You may want to increase the number of iterations per time step (at least initially), to see if this helps stabilize the solution. 

Also I see that you have a dynamic mesh set up, make sure your time step is small enough to ensure that your moving boundary does not move more than 1 cell width per time step.

 

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