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cavitation simulation for francis turbine

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Old   September 18, 2024, 08:42
Default cavitation simulation for francis turbine
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Pallav Sahu
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Hi,
I am trying to run a cavitation simulation for Francis turbine. I am facing problems in the stabilization of the case. I tried reducing the time step and playing with under relaxation factors but solution did not converge.
I guess problem is with the BC of P_rgh when i am switching to interPhaseChangeFoam after the intialisation of problem with pimpleFoam solution where boundary condition is in term of dynamic pressure.
any help or tips will be appreciated.
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