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Hover conditions for a rotor

I am new to this software and I have been using it for designing propellers and rotors in hover. I am having a doubt regarding how to define the hover conditions for the rotor during the optimization of the blade. I have tried to keep the flight speed really low (0.00001) but then it just gives me the NaN values error.
Any help is appreciated and thanks in advance.

Hi,

I would assume that the propeller optimization algorithms are not valid for a hover condition, with advance ratio ~ 0.

You can checkout the details of the user optimization algorith here:

https://www.humanpoweredflight.co.uk/hpfMedia/media/7/Adkins-and-Liebeck-paper.pdf

BR,

David

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