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Torque Calculation at Arbitrary Point

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Old   February 14, 2009, 01:58
Default Torque Calculation at Arbitrary Point
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Hi everybody. I've simulated motion of a rigid body (solid structure) in fluid stream. I've performed this in two-way FSI manner (CFX and Workbench together). I've encountered a problem in post processing in CFX-POST. How can I calculate the torque on arbitrary point? In other word I want to calculate torque on a certain point attached to a certain node which moves? Do I have to do anything in CFX-PRE before run my simulation? For example define a local coordinate system? I didn't succeed in define a local coordinate system which its origin attached to the certain node. Thank a lot.
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