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Rotational Cylinder in Turbulent FLuid

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Old   October 1, 2025, 11:34
Question Rotational Cylinder in Turbulent FLuid
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Hi! I'm modeling a 3D magnus rotor in air, which is a rotating cylinder. I only care about the lift and drag coefficients so I only modeled the fluid part. I tried to model the rotation by adding a sliding wall, but the result is not making sense. I wonder how I can calculate the values of the velocity component of the sliding wall in order to model the rotation.

This is the model, and only the cylinder is rotating:

Last edited by Cbbb; October 1, 2025 at 17:07.
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comsol 6.3, fluid dynamics, magnus effect

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