need help, please!!!

Eko Maja P

Hi, I'm a new comer in this forum. Allow me to introduce my self. My name is eko, i come from indonesia and my backgroud is marine engineering. I have a final project that related with propeller. I use two propeller then each other has different rotation. And than with CFX, i want to know visualization of fluid and determine thrust behind the propeller.

I want to ask how to build the boundary that have two input with different rotation of fluid (clockwise and contra clockwise) and one main output?.

Each of input have one propeller. Thank you for your attention and pardon me if this problem was discussed before.