Wind Chart/Diagram, How's It Look? Options

[Bigmeanbulldog55]

I was driving back to college from home, and it was raining out. I noticed that the back glass kept dry even in the heavey rain. This just made me curious to see a wind chart for the celica. It's a hachback with a wing. Any have this? And I was also wondering how functional this wing really is? Any know? Thanks.

[orvillescelica]

Thanks Hanyo for sheding some light on it for me. Based on your picture, that goes along with my first theory. Since the distance of the vortex from the body is poportional to the boundary layer seperation distance, the spoiler must allow for reattachment of the boundary layer on to the spoiler, and then re-detaching off the spoiler. Or promotion of no detachment at all. This would cause the resultant vortex to be further from the car since the dettachment distance is now further. This both decreases the suction force near the hatch window due to reattached flow (no vortex due to dettachment), decreasing the coefficent of drag, and also it would detour lift at the rear wheels since there is less chance the vortex would swoop under the car since it is further from the body.

Thanks to Mynzeyes for lending his car for this demonstration, i hope he doesnt mind.





This post has been edited by orvillescelica: Feb 15, 2005 - 5:08 AM