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Hydrodynamic Derivative Magnitude

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Old   July 3, 2009, 08:42
Default Hydrodynamic Derivative Magnitude
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Hi Everyone,

I've been reading about hydrodynamic derivatives and its written everywhere that Nr is large and negative while Nv is small and of uncertain sign.

What I want to know is, are these values(large and small) with respect to each other? Or are they with respect to (Mr, Mv, Kr, Kv) or (Yv and Yr non-dimensionalized)?

If you can help me out with this, I'd be much obliged. Thanks.
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drift tests, dynamic stability, horizontal plane, hydrodynamic derivatives, rotating arm tests

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