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Abrupt difference at the interface between outside region and rotor region

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Old   October 16, 2018, 11:38
Question Abrupt difference at the interface between outside region and rotor region
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Vivek Kumar
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Hello Everyone,
I hope you all are doing great. I was doing some analysis of the rotor(have it's own volume which will rotate) in a duct (which is attached to the aircraft). The basic approach was for me to follow this tutorial: By Mr. Raef.

Very helpful video. I was able to pull it off. But I am really confused by the boundary that I have shown in the figure.

I do not understand why there is a so much abrupt difference at the interface outside region and rotor region. I was hoping for a continuous flow.

Conditions used:
velocity inlet: 10 m/s
rpm: 15000 (but, I want to test at 48000)

Any advice will be appreciated from a fellow CFD passionate.

Thank you,

Aeronaut Frenzy
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Old   October 19, 2018, 04:46
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Gert-Jan will become famous soon enough
You problem is related to the following FAQ
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ansys, cfd, fluent, mesh 3d, rotation

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