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Old 01-14-2023, 07:51 AM   #1161 (permalink)
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https://forums.pelicanparts.com/off-...ures-2649.html


https://www.carscoops.com/2020/02/th...ren-senna-gtr/

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Old 01-15-2023, 08:13 PM   #1162 (permalink)
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Ford XLT Naked - '14 Ford F-150 XLT
90 day: 15.04 mpg (US)

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https://youtu.be/GEiMi1GNKM0

Superfast Matt video on how many cars bodies would be more aerodynamic if they were backwards.
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Old 01-15-2023, 08:56 PM   #1163 (permalink)
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"There is no place with fewer corners than the Bonneville Salt Flats."

The humor is well-delivered, but I was disappointed to learn about NACA ducts. I wonder how an Artificial_lntelligence would optimize an air inlet.
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Old 01-19-2023, 11:42 AM   #1164 (permalink)
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NACA submerged inlet

Quote:
Originally Posted by freebeard View Post
"There is no place with fewer corners than the Bonneville Salt Flats."

The humor is well-delivered, but I was disappointed to learn about NACA ducts. I wonder how an Artificial_lntelligence would optimize an air inlet.
I didn't see that addressed in the video. Can you steer us to that?
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Old 01-19-2023, 01:10 PM   #1165 (permalink)
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I thought I'd addressed this in in another thread, but for you I figured it out again.

I was wrong , it was a follow-up recommended video.

The Aerodynamics of Speed at 17:40
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Old 01-19-2023, 01:48 PM   #1166 (permalink)
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The way I heard it, the NACA duct was intended for low-flow situations, such as cockpit ventilation. I'm sure that AI would look at the overall situation and only recommend a NACA duct if no high-pressure area was nearby.
Regarding how to design a fast car, I still like John Cobb's approach, choosing a shape with the minimum surface drag rather than minimum frontal area, and fitting the machinery into that.
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Old 01-19-2023, 02:27 PM   #1167 (permalink)
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Quote:
The way I heard it, the NACA duct was intended for low-flow situations
What do you think of the fences?



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Old 01-19-2023, 02:44 PM   #1168 (permalink)
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I'd never seen the fences before. Maybe they help if it is in a basically unsuitable location near the rear, and the customer really likes the styling.
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Old 01-19-2023, 03:11 PM   #1169 (permalink)
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My thought was that it would augment the vortexes. But I wonder if the effect would increase or decrease with air speed.
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Old 01-20-2023, 11:23 AM   #1170 (permalink)
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The small experiences my excompany had attempting to make the nasa flush duct for aerospatial tells me it's really fussy in the original configuration. We met the drawing tolerances, modded it even more to meet the original nasa specs and were told it never went low drag. Come to find out NASA had the same issues. Does work well for a flush duct, but not what Nasa promised.

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