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Why Specify rotation speed?

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Old   September 9, 2008, 11:35
Default Why Specify rotation speed?
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NTM
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Hello,

When using the multiple reference frame model we specify the rpm of the rotor. My question is; is it possible that we don't speficy the rotation speed and the CFD code calculates the rotational speed (in the case of a wind turbine) casued by the incident wind. Obviously we'd have to specify some more parameters like inertia I guess but is this possible?

Thanks a bunch
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Old   September 12, 2008, 00:45
Default Re: Why Specify rotation speed?
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Davy
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You may not use the MRF approach based on the steady state then and a complicated time-dependent simulation may be needed.
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Old   September 12, 2008, 05:39
Default Re: Why Specify rotation speed?
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NTM
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Davy,

Thanks for oth your responses. Why may I not use the MRF on the steady state simulation?

Also can you please elaborate on the time dependent simulation thanks a bunch.

NTM
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