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moment coefficient sign?!

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Old   July 3, 2012, 16:09
Default moment coefficient sign?!
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Moataz
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hello all ,
iam making a simulation of VAWT , and i get the Cm value with +ve sign although
i gave the turbine a rotational speed -12 rad/s , what does the Cm sign refers to ? , is that wrong or something?!!

thanks in advance.
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