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sinusoidal velocity inlet

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Old   May 21, 2019, 10:09
Default sinusoidal velocity inlet
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Dear expert,

I simulate a turbulent flow, I used a sinusoidal function that depends on time as input velocity. and its via UDF.

Regarding the time step I took in an article (even if the number of meshes is a little different), the problem is that ANSYS FLUENT exceeds the time interval that I defined.

1- Does it make sense?

2- How to force the convergence of the simulation?

3- Is there a tool under FLUENT to estimate the optimal time step?

Best regards,

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