Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Does re-attached flow negate prior drag ?

Cd · 01-15-2023, 08:14 AM

Thanks for the reply, and thank you for explaining it in such easy to understand language.
I have a learning disability, but also a fascination with aerodynamics. This means I have a lot to learn.
I would imagine I am not the only person that visits the forum that could benefit from answers to idiotic questions like mine.
I would imagine there are some children with these same questions.

So from what I undesrand, I think you are saying that, like I suspected, once drag is created, there is no way to cancel it out by bringing the airflow back to a steady state ?
What about the Camaro, vs. Firebird example I mentioned earlier ?
Is it possible that some air gets trapped in the headlight buckets and really causes air to skip over it ?
I would think that any oncoming air would simply get sucked into the vortex there and result in a cycle of continued drag, rather than skipping over the area.
However, I also think back to how air curtains can act.

Thanks for your feedback.

01-15-2023, 08:14 AM	#5 (permalink)
Cd Ultimate Fail Join Date: Feb 2008 Location: Austin,Texas Posts: 3,585 Thanks: 2,872 Thanked 1,121 Times in 679 Posts	Thanks for the reply, and thank you for explaining it in such easy to understand language. I have a learning disability, but also a fascination with aerodynamics. This means I have a lot to learn. I would imagine I am not the only person that visits the forum that could benefit from answers to idiotic questions like mine. I would imagine there are some children with these same questions. So from what I undesrand, I think you are saying that, like I suspected, once drag is created, there is no way to cancel it out by bringing the airflow back to a steady state ? What about the Camaro, vs. Firebird example I mentioned earlier ? Is it possible that some air gets trapped in the headlight buckets and really causes air to skip over it ? I would think that any oncoming air would simply get sucked into the vortex there and result in a cycle of continued drag, rather than skipping over the area. However, I also think back to how air curtains can act. Thanks for your feedback.