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-   -   negative RPM (http://www.cfd-online.com/Forums/fluent/49219-negative-rpm.html)

NTM September 9, 2008 11:39

negative RPM
 
Hi,

Is it possible to specify a negative rpm in the multiple reference frame model. I am simulating a 3D rotor, the geometry etc is fine and when I specified a 70rpm value the flow path was very strange. I thought I had the rotation in the wrond direction so I just used -70 rpm but the results are now too low.

If I have a 3D rotor with the axis of rotation around z axis and origin 0,0,0 (x, y, z), looking topdown on this is the normal positive rotation clockwise or anticlockwise?

Thanks very much

Davy September 12, 2008 00:47

Re: negative RPM
 
Negative rpm is acceptable in FLUENT.


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