How To Simulate Flow With Really Close Multiple Rotating Parts Comsol
 

Hi !

I want to simulate the gas flow inside a rotary engine. Please see the picture for better understanding.

Attachment 66783

It has 3 rotors, where the central one has teeth-like parts that compress the gas in the cavities of the side rotors. So it appears that the rotating domains will overlap. I want to simulate this model to see where is the best places for inlet and outlet locations.

However, I'm new to consol so even the 2d simulation is giving me trouble. How should I configurate the rotating domains, and meshing ? Is there a tutorial with a similar example ? Because I haven't found a example that uses interchanging teeth with flow between them.

Attachment 66784

Obs.: I use Solidworks for the Geometry.

Thank you very much !