How to setup simulation for peripheral outlet vacuum motor

I am trying to measure static pressure or total vacuum pressure of my vacuum motor but I don’t know what to run or how to set it up.

should I run incompressible or compressible and if so how do I set it up because I cannot seem to find specific tutorials on this and the simscale forums and tutorials are very broad and don’t help me.

Project Url: https: https://www.simscale.com/workbench/?pid=4569703002705308592&location=simulationSnapshot:3dbfa379-a311-49e9-8ee6-f04281ea742a