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Flapping wing rotation in Fluent 3D not working properly

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Old   February 1, 2011, 12:15
Default Flapping wing rotation in Fluent 3D not working properly
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Dave Smith
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Hi
I dont unuderstand the rotational method in Fluent it does not make sense.

I am trying to model a flapping wing in 3D and I cant seem to understand whats wrong. I am very confused.

I choose to rotate about the x(flapping) and z(pitching) axis and set this up via UDF and even my profile coordinates and there is motion about the y axes all the time.

Then to make matters worse, if I rotate about the x(flapping), y(deviation), and z(pitching) axes at the same time the x axes rotation is fine, but the wing seems to rotate about the y axis in a way that it wants to and rotates about the z axis with some form of accuracy, basically I think the rotation axis in fluent maybe set in a certain way, but I dont understand what it is and how I can solve my problem(s).

Could someone please help with this, I have tried so many times to solve this but cannot do it.

Please help

Dave
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Old   February 13, 2011, 22:35
Default Same problem
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Tejas C
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Hi dave

I am having the same problem in FLUENT. were you able to solve the problem you were facing?
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