Dear Phanindra,

We can run VOF simulation with different inlets. For example, if you have two phases in your system, consider number of phases are two in interFoam.  This example also available in multi-phase dam breaking tutorial.  At each inlet you can define velocity and volume fraction of the phase.

Best regards 

sekhar  

Hi Phanindra,

Yes, it is possible to simulate your case with an interFoam. Also, make sure the boundary conditions. Since you are working with the column, use no-slip boundary conditions for column walls. If velocity not changing than use fixed values for the inlet. Also, use appropriate Differencing schemes for the accuracy of results. Obviously, you can refer many tutorials who have previously worked with similar problems. I have also worked with the bit similar problem but I have used the multiphaseInterFoam and all liquid phases. You can check my update, it may help you.

kind regards,

Vimal Patel

Thank you Somasekar and Vimal for your valuable answers. I feel multiphaseInterFoam is more appropriate for my simulations. :) 

Dear Vimal Patel,

Your work is quite interesting  and was very useful to me. I was a bit confused about the way the fluids are treated by interFoam. Now it's evident that interFoam treats two phases as a combined mixture and hence single momentum equation. Thank you for your valuable info :)