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Why moments around center of pressure calculated in ansys fluent is not zero?

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Old   September 15, 2016, 16:31
Default Why moments around center of pressure calculated in ansys fluent is not zero?
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sime
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hello , I compute location of center of pressure of my geometry in ansys fluent , as you know the moments around this point should be zero because drag and lift forces are acting at this point , but when I compute the moments around center of pressure it is not zero or near zero! so how to find center of pressure ?
some contour of my geometry attached
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Old   October 20, 2016, 05:47
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This is a quite common engineering misconception.

https://en.wikipedia.org/wiki/Resultant_force

As explained in the "Torque-free resultant" section, not all system of forces have a so called "center of pressure".

The fact that Fluent computes it "in any case" is just marketing.
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