How to determine the Drag Coefficient using POST? -- CFD Online Discussion Forums

January 18, 2006, 20:53	How to determine the Drag Coefficient using POST?	#1
Hans Guest Posts: n/a	Hi Im new to CFD, currently trying to carry out a wind tunnel analysis on flow around a vehicle, I have went through the solver, but running into problem determining the Drag Coefficient for the vehicle. The velocity is aligned to the x-axis, so In CFX-Post is it appropriate to plot "Force X" on the Vehicle body and use the Max value and apply it to find the Drag Coefficient as follow: Cd = force_x()@vehicle_Surface / (0.5RhoU^2*A) Is this the correct method? please advice? many thanks

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