Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Drag penalty for having a shallow rear window angle, and using spoiler to re-attach ?

tomi_k · 10-20-2021, 09:26 PM

Aerohead : I guess you figured out that I posted those pictures with the arrows which also had a mistake regarding the arrows not pointing perpendicular to the roof line, apologies for that.
I just did it quickly to try to simplify my questions what I tried to figure out regarding what happens at the end with a spoiler, how spoiler acts in terms of drag, how overall airflow "sees" the spoiler and what is impact of that to overall drag vs. the roof angles.

Thanks for detailed responses on this matter - much appreciated.

10-20-2021, 09:26 PM	#39 (permalink)
tomi_k EcoModding Lurker Join Date: Jan 2021 Location: Ontario, Canada Posts: 68 Thanks: 54 Thanked 50 Times in 35 Posts	Aerohead : I guess you figured out that I posted those pictures with the arrows which also had a mistake regarding the arrows not pointing perpendicular to the roof line, apologies for that. I just did it quickly to try to simplify my questions what I tried to figure out regarding what happens at the end with a spoiler, how spoiler acts in terms of drag, how overall airflow "sees" the spoiler and what is impact of that to overall drag vs. the roof angles. Thanks for detailed responses on this matter - much appreciated. Last edited by tomi_k; 10-20-2021 at 10:48 PM..