Frontal area calculation

June 12, 2006, 20:39

Hi

Im trying to find a way to calculate the frontal area of an object for evaluating its drag coefficient. I have not found any mechanism within CFX for this (had hoped that frontal area might be available in the function calculator as 'area', with x,y, or z perspective to calculate front/side/top projected area).

Is there any mechanism within CFX to calculate frontal area?

Thank you Stefan

June 12, 2006, 21:03

The normal vectors for boundary patches are accesable from within user cel and user fortran. That and the area variable are what you need.

June 12, 2006, 20:39	Frontal area calculation	#1
Stefan Guest Posts: n/a	Hi Im trying to find a way to calculate the frontal area of an object for evaluating its drag coefficient. I have not found any mechanism within CFX for this (had hoped that frontal area might be available in the function calculator as 'area', with x,y, or z perspective to calculate front/side/top projected area). Is there any mechanism within CFX to calculate frontal area? Thank you Stefan

June 12, 2006, 21:03	Re: Frontal area calculation	#2
Joe Guest Posts: n/a	The normal vectors for boundary patches are accesable from within user cel and user fortran. That and the area variable are what you need.

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