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ptc-22061531-Visitor
1-Visitor
Jan 11, 2010 12:40 AM UTC
Question

Inputing CFDs from Flo.EFD to analysis program

Our team has a bunch of planes that we ran through EFD but we need to know what exactly to put in for the various CFDs (Whats Alpha and My) We know what Fx and Fz are (Force of X and Force of Z) but whats My? If its torque around the Y-axis I don't understand why since it would essentially be lift.

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    ptc-22061531-VisitorAuthor
    1-Visitor
    Jan 11, 2010 7:41 AM UTC
    Ok so I found out what was what (kinda) but how do you change the reference point for the torque around the Y axis? I am assuming that the analysis program is just examining it around the origin (the last 2 CFD inputs are 0 0). Is that a correct assumption? or should we be manually setting the measurement to the center of mass?
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    MARKBEYER1-Visitor
    1-Visitor
    Jan 19, 2010 11:28 PM UTC
    If you are summing moments about the origin, then use Ref_x=0 and Ref_z=0 in your rwdc Analysis program on the CFD card.
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