i am trying to do a simulation on pipe flow which is partially filled with water and partially with air. I have done modelling as well as meshing. I have used volume of fluid- open channel flow in multiphase model and k-epsilon turbulance model. Mass flow inlet and outflow as outlet i have chosen. Rest i have chosen as default. But still i am not getting exact result. Can anyone help me to get the exact result i.e. the velocity profile.
Here is the attachment of velocity profile for the cross section of pipe flow
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