Shan-Chen MCMP model inlet fluid is different than fluid in the model

Hi everyone, I have been trying to work on the problem that injecting water into porous media that is saturated with water. If someone has ideas about how to define the inlet and outlet boundary condition to inject water into the model.

I know how to define the BC for single phase, however, I don’t know how to make the inlet flow to be another kind of fluid which is immiscible with the fluid that has been in the model. If there is someone knows about it? Thank you so much!

hi applous;
I am dealing with the somehow same problem. Did you solve it?