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Ansys Learning Forum › Forums › Installation and Licensing › Ansys Products › Adaptive time step for fluent in structural – fluent system coupling simulation › Reply To: Adaptive time step for fluent in structural – fluent system coupling simulation

August 14, 2024 at 7:24 pm
yu272
Subscriber

Hi Rob,

Thank you for the information. Unfortunately, my problem requires two-way coupling so I have to do system coupling simulations. 

I have tried to reduce the time step to a very small value and this negative cell volume still happens, while last step all solutions converge well. Other methods I tried included refining mesh in the corresponding area for the initial mesh. Is there any other method you recommend?

Sincerely,

Eric