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Old 02-10-2021, 05:07 PM   #1 (permalink)
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video: new Audi E-Tron in wind tunnel

A search for:' New Audi e-tron GT tested in the wind tunnel-has crazy aerodynamics' will bring up a video.





The smoke streamers are very 'nervous'.
The streamline closest to the rear upper body indicates cyclically attached, then separated flow, as if at sub-critical Reynolds number.
Nasty!
It's probably a very good thing that it has the rear wing.
When COVID's over, I'll find a 4-year-old to instruct me on links. Sorry!
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There's also a video following, which shows a brief glance of a the Genesis G-70 in the wind tunnel.Flow over the boot doesn't look so good either.

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Old 02-10-2021, 07:44 PM   #2 (permalink)
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You just have click once in the address bar, hit ctrl+c and then Ctrl+v in the text box here. The forum will automatically make it a clickable link. That's it.
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Old 02-12-2021, 11:22 AM   #3 (permalink)
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click

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You just have click once in the address bar, hit ctrl+c and then Ctrl+v in the text box here. The forum will automatically make it a clickable link. That's it.
Left or right click? ( I need to be treated as a toddler )
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Old 02-12-2021, 01:26 PM   #4 (permalink)
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This is why Apple resisted the two-button mouse for all those years. O'course on Mac OS, it's Cmd-C and Cmd-V.
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Old 02-12-2021, 07:03 PM   #5 (permalink)
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Left or right click? ( I need to be treated as a toddler )
Left click once in the URL bar should highlight the whole web address by default.
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Old 02-15-2021, 01:04 PM   #6 (permalink)
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I have no idea what's causing all that buffeting, it's such a clean looking design.

Feb 9, 2021
New Audi e-tron GT tested in the wind tunnel - has CRAZY Aerodynamics!


Maybe they are using some sort of special lighting to be more revealing?

I know that's I've complained about the smoke dissipating and disappearing by the time it gets to the rear of the car, have they solved this issue?

Perhaps with a UV Strobe-Light?

Is the apparent buffeting at the upper stream just a strobe lighting or digital recording artifact?
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Old 02-15-2021, 03:13 PM   #7 (permalink)
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Thank you kach22i for your useful post.

They missed smoking the wake, the front air curtains and those wheels.
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Old 02-22-2021, 09:08 AM   #8 (permalink)
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https://www.youtube.com/watch?t=99&v=Yu_73V_CFNI

Maybe this picture will make JulianEdgar understand that we don't need a wing profile for Air Curtains.
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Old 02-22-2021, 11:23 AM   #9 (permalink)
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Thank you all for the great video links. I love the look of the E-Tron. It makes me want to get one. I suspect the wheels may not be as bad as they appear at first glance. At the very end of the above video I see some fill-in plates that are blacked out to make the wheels look more open. It would be great to see a photo of them with better lighting.
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The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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Old 02-22-2021, 11:36 AM   #10 (permalink)
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