[Zeallt]

Hi foamers,

I'm trying to simulate the flow in a mixing tank. When I try to specify the rotor zone for rotating frame, I had some questions about its boundary.

My impeller is really close the outer wall, as you can see it in the attached image. So my question is: can I assign the rotor zone extended beyond the outer wall, like the red box in the first image; or do I have to assign a smaller zone, like the red box in the second image?

Thanks in advance!

[Ruli]

DearLitao,

for my wind turbine rotor blade it worked to choose the rotationg zone too big, so that it exceeds the meshed space.

Best regards
Julian

[Jetfire]

Hi ,

Assign a smaller rotor as shown in the second image and i think it should work

[ybapat]

Hello,

As said in previous post you can smaller rotating zone or otherwise if you want to use bigger zone you can try to use non-rotating patch specification in MRF zone.

Regards,
-Yogesh

[Zeallt]

Thank you all.

I'm now using the smaller rotating zone, I think it works fine.