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Multiple reference frame in centrifugal fan

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Old   April 8, 2008, 06:37
Default Multiple reference frame in centrifugal fan
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Peter
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Hi,

I'm using multiple reference frame for centrifugal fan CFD analysis. Region around the blades are set to be rotating frame and the housing is static reference frame. Do I have to model the volume of the housing of the centrifugal fan and specify 0 RPM?

What is the direction of the rotating frame?Following the blades rotation or opposite?

Thanks
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