[Arjun kumar P]

Hi All,
I am currently trying to solve a mixture multiphase simulation for hydrocyclone to capture the effect of high solid content in the flow medium.(Generally, it is advised to perform Lagrangian simulation for solids content >10%) So I have started mixture multiphase model. But what I observe is pressure is not developing inside the hydrocylone so air-core formation is not happening. But if perform VOF simulation with water and air phases(Excluding solid phase) I can clearly see air-core formation. I request you to kindly through some light on where I might go wrong.
Turbulence: RSM
Looking forward to hear some valuables suggestions from you all.

Thanks and Regards,
Arjun