cavitation simulation for francis turbine -- CFD Online Discussion Forums

Yesterday, 08:42	cavitation simulation for francis turbine	#1
pals123 New Member Pallav Sahu Join Date: Jul 2023 Posts: 3 Rep Power: 3	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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