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rotating reference frame

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Old   January 18, 2005, 14:00
Default rotating reference frame
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I have a projectile with canted tail fins. These tail fins cause the projectile to spin at a certain rate (OMEGA) relative to the airspeed.

I'm having trouble setting up the model to get this rotation. Do I set the fluid zone as rotating? Do I have to set the rotation of the fluid to negative OMEGA? If I do rotate the fluid zone, what do I do with the body? Is it better to set the fluid zone as stationary and rotate the body?

I appreciate any help.

Thanks, Jason
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