What is the body velocity of the "rotor" in aerospace blockset?

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Shan Min Hii
Shan Min Hii 2025-4-18
回答： Vinay 2025-5-13
Hi everyone, I would like to ask: does the body velocity of the rotor equivalent to the oncoming flow to the rotor (in forward flight of a propeller plane)?
Thanks!
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Les Beckham
Les Beckham 2025-4-18
Can you clarify what you mean by "body velocity of the rotor"? Are you referring to linear velocity or angular velocity, or something else?

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Vinay
Vinay 2025-5-13
Hi @Shan Min Hii,
The 'Body velocity of rotor(Vb)' of a 'Rotor' block is the velocity of the rotorcraft expressed in the body fixed coordinate frame as [u,v,w].
'u' is the forward speed of the rotor in forward flight mode. The forward body velocity is approximately equal to the oncoming flow when effects of wind, sideslip and neglected.
I hope this resolves your query!

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