[sharadram1989]

Hi guys,

My question is very basic.

I read through the Ansys 14.5 manuals but it doesn't seem to answer my question so posting on here!

I have a lorry model sat in a wind tunnel setup (Drawn on XY plane and extruded through Z axis).

Now when I need to find the Drag Force on this lorry, I click on Function Calculator in CFD post and select the Z component for direction and it displays a force.

My question is How does Ansys calculate this force? Does it use the generic Drag Equation = 0.5*rho*Usquared*Area?

And if so what Area is it using? Is it all of the surface area of the lorry or just the cross sectional frontal area?

Thanks in Advance!