Wrong simulation result?

[timz]

Hello everybody!

I’m trying to rotate air blades inside of shell (torus shape). But simulation get me only rotating in XY axis, there are no vertical (Z-axis) air movement at all.

Air tor by timz | SimScale

I tried to make blades as slip walls, as not slip walls, not walls at all. Changing RPM 100 - 5000. Same result
Please help!

[igaviano]

Hi @timz,

Thanks for posting on the forum.

I’ll take a look at your project and get back here as soon as possible with my findings!

Best,
Igor

[timz]

Hi Igor! Could you please let me know if you had a chance to review my project? Btw it is not first time I get a strange results, hope it is my fault not the system.
Thank you!

[igaviano]

Hi @timz,

apologies for the delay here, it’s been a busy week. I guess you could try two things:

1. Apply a velocity inlet/pressure outlet to the upper/lower faces
   
   
   
   
   
   
   
2. Follow the setup in this tutorial for a drone airflow analysis: Rotating Zones Drone Simulation | Tutorial | SimScale

Best,
Igor

[timz]

Didn’t help. Also I see strange particle trace:

[ChelseaSanders]

@timz

Didn’t help. Also I see strange particle trace:

.

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All good now?