I would like to simulate a centrifugal fan with a rotating fluid zone around the impeller, but I can't get it to work

Capture d'écran 2025-03-20 111840

Te main issue is that i can’t fix this problem and can not also a second time the material cause i’m using a Tryial version.



These are the 2 setup i made to try.

Need an help !

Hi, from the description & error message, the issue is with the preparation of the rotating zone volume.

Make sure to go through the steps outlined in this article: How to Prepare the CAD for Simulating Rotating Zones | SimScale

Of particular interest are the figures where the rotating zones are created, and where the flow regions are created (with the rotating zones being “Excluded” from the operation).

Cheers

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Thank for the advice i’ll check it.