# calculating n plotting moments coefficients

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 June 19, 2011, 20:48 calculating n plotting moments coefficients #1 New Member   kurniawan Join Date: Jun 2011 Location: Indonesia Posts: 2 Rep Power: 0 Sponsored Links dear all.... i want to ask something...how to obtain moments coefficient on the CFD-Post? which function can i use?i've tried using the "torque" function but the results were not as i expected. i guess it should use the "torque" function, but the choice of the axis there is only X, Y and Z.there is no choiceof the Y-axis at 1/4 chord. what's the solution? do i have to start again from ICEM to put the center of axis at 1/4 chord or wing? thanks before

 June 20, 2011, 01:37 Hi #2 Member   Dynampally Pavitran Join Date: Mar 2010 Location: India Posts: 74 Rep Power: 9 You can make a local coordinate frame in post at any location. Get the x,y,z co-ordinates of the 1/4th location and create the new co-ordinate frame. While calculating torque in function calculator, you can choose the new co-ordinate frame. maperik likes this.

June 20, 2011, 09:59
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kurniawan
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Quote:
 Originally Posted by pavitran You can make a local coordinate frame in post at any location. Get the x,y,z co-ordinates of the 1/4th location and create the new co-ordinate frame. While calculating torque in function calculator, you can choose the new co-ordinate frame.
ooh....
i see...i will try your suggestion. thanks a lot

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