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VAWT with Variable Pitch Blades

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Old   November 12, 2020, 07:53
Default VAWT with Variable Pitch Blades
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Hello Fellow Foamers,

I am a novice user of OpenFOAM and for my first project I am simulating a VAWT (H-Rotor with 3 blades).

I have executed a couple of simulations for a normal H-Rotor with fixed blades.

Now for the final stage, I would like vary the blade's pitch angle, which is thought as a method to increase the rotor's performance.

The Blades are to be pitched during the revolution when the angle of attack (aoa) exceeds the stall angle which is 10 in my case.

I have tried generating multiple AMIs with snappyHexMesh (1 for the Rotor and 3 for the blades) and implemented the multipleSolidBodyMotion.

The combination of motionFunctions I have tried are rotatingMotion (Rotor) with tabulated6DoFMotion (blades) and rotatingMotion (Rotor) with oscillatingRotatingMotion (blades).

I would appreciate if anyone who has the same/similar experience with such simulations in OpenFOAM to provide their input.

Suggesting a different approach or maybe an improvement to the method I have implemented would be of great help.

Thank you!
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Old   November 24, 2020, 20:28
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Stefano Augusto Ruy Cerchiari
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Hello. Have you found a solution? I have the same issue.
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Old   November 29, 2020, 14:03
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Hi Stefano, I have learned it is possible to do with the tabulated6DoF motion possibly also in combination with multimotion.

http://https://openfoamwiki.net/inde...dyMotionFvMesh

I am still attempting to get the right setting for this. But I think this is the right method.

Do let me know if you have discovered anything from your side. Thank you

Last edited by s.singh; November 29, 2020 at 19:56.
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