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Calculating torque or bending moment of a fixed blade in non-uniform flow
Posted Sep 15, 2017, 3:31 p.m. EDT Computational Fluid Dynamics (CFD) Version 5.3 0 Replies
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Hi all,
Im doing a low fidelity analysis that simulates a blade rotating in a fluid where the fluid velocity varies linearly along the span of the blade (this is just an early stage model - not meant to be robust).
It's of interest to find the torque about the fixed location at the root due to drag but im having trouble doing this directly. I can easily integrate across the entire surface to find the magnitude of the total drag using spf.T_stressx, but this doesn't help as the line of action is unknown and changes with each design (I'm running a parametric study that alters some shape parameters).
Is there any way to integrate the drag along the span multiplied by the distance from the fixed location? This would give me the torque but I cant figure out how to do it with the derived values tool or by exporting nodal data.
Any suggestions would be appreciated, thanks.
Hello Zachary Graves
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