modeling a rotating electrical machine

Dear Comsol Users,

I am trying to model a simple rotating machine in Comsol 4.0a. I am attaching the model file.

Unfortunately, I couldn’t find any documentation or examples how to start up a model using the “Rotating Machinery, Magnetic (rmm)” physics interface, where a time dependent solution is done. Do you have any similar models available as an example for me?

It is hard to formulate my questions, as I basically cannot get the model to work properly. For example, the field lines I get in the airgap don’t seem to be continuous.

I tried opening the 2D generator example for v3.5 in v4.0 and tried to trace the steps back but it didn’t help as in v4 it didn’t make use of the physics interface I wanted.

I would be very happy if you could take a look in my (very simple) model and tell me

- how to define that rotating permanent magnet properly,
- how to model the rotation, moving mesh, airgap (continuity) boundary conditions
- how to post process in order to see the field lines for different time steps

I am sorry for formulating this in such a poor way, but I tried many different things and got confused over the settings, and I thought instead of going through what I did step by step, I should just ask for the better way of doing it on this really simple model. I hope someone could help me.

Best regards,
Arda