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Old   July 12, 2023, 05:05
Default Sloshing Problem
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Adriana Pinto
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Hello, I am using ANSYS Fluent to study sloshing inside a tank with baffles.

I did the simulation on the tank without baffles and I had no problems, but now when I insert the tank with baffles it gives me lots of errors and then it gives a floating point. One of the errors says it is
Divergence detected in AMG solver: k
Divergence detected in AMG solver: epsilon
Error at host: floating point exception

I believe that the error is because of the mesh. I am doing the mesh in ANSYS mechanical and I am using the option of adaptive sizing. I believe that this is what is causing problems because when I don't use it the simulation does not give me an error.

Thus, I would like to know if in a simulation of this type where I am using VOF is necessary to use adaptive sizing. Furthermore, is adaptative sizing the same as adaptive meshing?

Also, my continuity residuals are very high, what can it be?

I hope somebody can help me. I have already tried some solutions but none seems to be working. Thank you very much for your attention.
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