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How to simulate cavitating flow with 4million mesh?

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Old   October 25, 2019, 23:27
Smile How to simulate cavitating flow with 4million mesh?
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王子阳
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Hi,everyone

i recently simulate the hydrofoil cavitating flow with 4miilion meshes,at the beginning it works well,but at about 0.25s, it not work well, the total cavity volume is not a distinct quasi-periodic process.

But when i use 2million meshes,it works very well.

i use the LES-VOF model, the time step is adjustruntime

i use the clary-k hydrofoil, the cavitation number is 0.8,the inlet velocity is 10 m/s

i use the PISO

how do i solve the problem?

thank you

Last edited by wangziyang; October 25, 2019 at 23:29. Reason: forget to show the picture
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