Compressible Propeller simulation keeps failing

I’m new to simscale, and am trying to simulate a custom parametric high-pitch propeller at a very high rpm in a 320mph flow. I’m using a rotating zone for the propeller area, which I am hoping is set up in the right direction. The problem I am experiencing is a variety of failures in different ways, which mostly cite poor meshing. I added a refinement zone, but that didn’t fix it. Anybody see any glaring issues with my simulation? (I can only share it with support)


one of the worse 0% progress failures

Prop Concept Test | SimScale Workbench

Hi @cautodrone, thanks for posting on the forum and welcome to the SimScale Community :handshake:

I’ll take a look at your project and get back here in a few with some comments.

Best,
Igor

Hi @cautodrone,

Taking a look at your Mesh’s max Non-orthogonality, it indeed looks pretty high:




This will make your simulation very likely to diverge. In order to inspect where in your mesh these faulty elements are contained, take a look at this knowledge base article:

These other two resources might also be interesting to take a look at:

Tell me if that helps!

Best,
Igor