Hi, Yes, I have one inlet as a mixture (gas 0.000539 kg/s, oil 5.49 kg/s and water 60.13 kg/s) and three separate outles for gas, oil and water with 0.000539 kg/s, 8.23 kg/s and 57.39 kg/s respectively.

The next image shows the simulation. Initially patch the water and oil zones in each chamber of the separator

I understand that it is necessary to divide the inlet for each phase even considering the same velocity?