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Old   September 25, 2014, 09:18
Default Rotational Direction
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Marius
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Good day all

I am new to this forum and Ansys.

I did a transient rotor stator analysis on a impeller, and I used the global y axis as the rotational axis, my direction of rotation is in the negative y direction (according to the right hand rule).However when I look at the results the rotating direction is the other way around.

I did all the tutorials, but still don't know what I'm doing wrong.

Attached is a video of my results.

Thank you
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File Type: zip Impeller.zip (96.8 KB, 2 views)
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Old   September 25, 2014, 11:42
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If you plot the "Rotational Velocity" vectors, are they pointing in the expected direction ? This vector is "Omega x R" as interpreted by the ANSYS CFX Solver; therefore, you can see if there is a setup issue.

Hope the above helps,
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Old   September 26, 2014, 05:33
Default Rotation Velocity
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Marius
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Thank you for your reply.

I am now more confused. Somehow the rotational direction for the impeller and water is different.

Can you explain this?
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Old   October 3, 2014, 09:45
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I have no experience in this, but are you using the same coordinate system for both? I can see that causing this discrepancy.
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angular velocity, rotational direction, transient rotor stator

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