[Walle]

Edit: This is solved. Information at the end.

Hello there! Ny name is Chris, I have been lurking the forums for a few months, but decided to register when I couldn't find an answer to my problem.

I'm trying to do a simple external simulation of a rotating fan within a short "tunnel", the medium is air.



There is a semi-transparent part that is the same diameter as the fan, as well as the same length (fan hub-to-hub length, slightly longer than the blades). I've set that part as a local rotating region, and set the speed to -600 RPM (I tried solving it without the minus, didn't change a thing). It's also disabled in the component control dialog. I've also created a boundary condition "Real wall" where I've selected all the surfaces of the enclosure, and set it to "stator".

The center of the fan is located in origo, and the fan enclosure as well as the solid for the local rotating region are concentric to the fan.

Yet, I get the error "Unable to solve the local rotating region, simulation stopped" when I try to solve it.

Any ideas what I might be doing wrong?

Thanks, Chris

Edit: I had missed that I had a hidden body in my fan model, the body I used to specify the local rotating region when I ran a simulation for the fan without the enclosure. When I suppressed that it solves nicely.