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Modelling of 2D Wind Turbine Blade (HAWT)

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Old   August 10, 2010, 10:57
Default Modelling of 2D Wind Turbine Blade (HAWT)
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Richard Morris
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I am relatively new to FLUENT and having difficulty modelling fluid flow over my 2D wind turbine blade geometry.

I see that in FLUENT>Problem Setup>Boundary Conditions, I can select that a particular part be rotating. This seems ideal for me, as I can then set the blade to be moving and adjust wind speed. However, given the geometry that I have, an appropriate axis of rotation would be in the negative direction on the Z axis. Which isn't available to me (I assume because my mesh is 2D).

Can you suggest to me how I might be able to let FLUENT know that my blade is rotating. I don't want to do this in 3D.

Would it be more accurate to use the vector addiction of the wind speed and the blade speed or would this be completely inaccurate?
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Old   August 11, 2010, 04:18
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Jouke de Baar
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I'm afraid this option might not be what you are looking for. Setting a moving wall will only adjust the zero slip boundary condition of the wall, it will not actually move or rotate your geometry.

For a rotating geometry you might use a sliding grid.

Good luck!
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