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Old 08-06-2021, 01:47 AM   #1 (permalink)
Cyborg ECU
 
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Join Date: Mar 2011
Location: Coastal Southern California
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
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drag visualisation

A one of a kind drag visualization.
https://digg.com/video/box-bounce-back-into-car

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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Old 08-06-2021, 07:33 AM   #2 (permalink)
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That's a cool video, I've seen similar when an SUV drove over a plastic bag sitting on the road and it got sucked into the wake and hung out around there for a few seconds.
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Old 08-06-2021, 09:14 AM   #3 (permalink)
Cyborg ECU
 
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,297

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,373
Thanked 2,155 Times in 1,463 Posts
Quote:
Originally Posted by Daschicken View Post
That's a cool video, I've seen similar when an SUV drove over a plastic bag sitting on the road and it got sucked into the wake and hung out around there for a few seconds.
Yeah. I'd like to see that. I also think it is cool how the turbulent nature of the wake area creates chaotic cycles that are not sustainable more than a few seconds. Like, the bag could not stay in the wake area for minutes, just seconds. The wake area is just not a stable place.

EDIT: This one is kinda regular-seeming in movement pattern, but that is probably just because the flap is anchored to the boat:

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.




Last edited by California98Civic; 08-06-2021 at 09:36 AM..
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