[Masoudrh]

Hello everyone,
I hope you are doing well.
I need some guidance regarding a problem involving immiscible liquid–liquid two-phase flow.

The problem is as follows:
Two immiscible liquid phases are first thoroughly mixed using a mixer, and then the mixture is introduced into a separator. This separator consists of a rotating vessel that spins at high speed. As the two-phase mixture enters the separator, phase separation occurs due to the action of centrifugal force.

The main questions are:

Which multiphase model would be most appropriate for simulating this system?

In the absence of experimental data, how can the accuracy or validity of the simulation be verified?

[ABIRAMI]

go for volume of fluid approach,

and you don't have experiment, go through some literatures and try to validate it first.