[Mat22]

Hello guys,

I am actually trying to model the flow in a stirred tank filled by two fluids with different density but very close 1.072 and 1.1), my final goal is to estimate the time needed to homogeize the two liquids.
First, I calculated the steady flow in the tank with one fluid.
And I patched the second liquid in the tank where i wanted and I run an unsteady simulation solving only the volume fraction equation. (It is very similar to introduce a dyer in a converged flow fiield i think)
The problem is that there is absolutely no change in the distribution of the two phases. I guess it comes from the resolution of the volume fraction equation
If someone could help me with this, it would be very nice.

Thanks

Mat