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Cd · 01-30-2021, 08:10 PM

And here is another.

https://www.sciencedirect.com/scienc...67610501001611

It may have been posted already.
In fact, it may be a paper we all spoke about earlier.
( I'm trying to find more information on ducting air into a cars' wake to reduce drag )

I might just start a new thread where i dump links to papers.

Here is one on wake reduction from a blown wake https://www.sciencedirect.com/scienc...67610515000665

It is too complex for me, but I did see one chart that showed that drag was reduced by about 2 counts through air blown into the wake. (.377 - .357 Cd )

From this paper :
https://www.sciencedirect.com/scienc...42727X18310270
.Quote " Based on our previous study (Wang et al., 2017), the drag can be reduced only by using blowing or suction method at certain edges of the rear body, otherwise it would be increased "

So apparently blowing air into the wake has to be just right, or you end up increasing drag.
"

01-30-2021, 08:10 PM	#10 (permalink)
Cd Ultimate Fail Join Date: Feb 2008 Location: Austin,Texas Posts: 3,585 Thanks: 2,872 Thanked 1,121 Times in 679 Posts	And here is another. https://www.sciencedirect.com/scienc...67610501001611 It may have been posted already. In fact, it may be a paper we all spoke about earlier. ( I'm trying to find more information on ducting air into a cars' wake to reduce drag ) I might just start a new thread where i dump links to papers. Here is one on wake reduction from a blown wake https://www.sciencedirect.com/scienc...67610515000665 It is too complex for me, but I did see one chart that showed that drag was reduced by about 2 counts through air blown into the wake. (.377 - .357 Cd ) From this paper : https://www.sciencedirect.com/scienc...42727X18310270 .Quote " Based on our previous study (Wang et al., 2017), the drag can be reduced only by using blowing or suction method at certain edges of the rear body, otherwise it would be increased " So apparently blowing air into the wake has to be just right, or you end up increasing drag. " Last edited by Cd; 01-30-2021 at 09:33 PM..