09-04-2020, 11:37 PM
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#1 (permalink)
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Banned
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A quiz for people
So here's a good example of a really low drag vehicle - incredibly well streamlined with a Cd of 0.101 - yes, 0.101.
It's the 1996 Honda Dream solar race car.
Now, who wants to guess whether, overall and at zero yaw, it has:
(1) Downforce
(2) Neither lift nor downforce
(3) A small amount of lift
(4) A lot of lift
Just putting down the number that corresponds with your guess would be good.
Last edited by JulianEdgar; 09-05-2020 at 01:47 AM..
Reason: Added second pic
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09-04-2020, 11:47 PM
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#2 (permalink)
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Cyborg ECU
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Quote:
Originally Posted by JulianEdgar
... Just putting down the number that corresponds with your guess would be good.
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5
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09-04-2020, 11:50 PM
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#3 (permalink)
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Human Environmentalist
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3, though the question is subjective.
Wondering why the wheel cowlings weren't combined?
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09-05-2020, 01:21 AM
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#4 (permalink)
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Eco-ventor
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3.5
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2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
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09-05-2020, 02:36 AM
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#5 (permalink)
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Corporate imperialist
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Pi
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2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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09-05-2020, 03:17 AM
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#6 (permalink)
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Banned
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Quote:
Originally Posted by oil pan 4
Pi
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I'll take that as #3! |
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09-05-2020, 04:35 AM
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#7 (permalink)
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EcoModding Lurker
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4
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09-05-2020, 10:42 AM
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#8 (permalink)
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Moderator
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I won't guess since I just downloaded and read the paper, but I will say: not what I expected.
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09-05-2020, 11:20 AM
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#9 (permalink)
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EcoModding Apprentice
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It looks like a wing, so I would say 3.
If the part under the car (between those wheels) is flat, straight and not curved, I would say 4.
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09-05-2020, 04:04 PM
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#10 (permalink)
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Master EcoModder
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Not an informed guess but if I was piloting that through the Oz-tralian Outback, I'd want downforce, just in case. 
Quote:
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Originally Posted by redpoint5
Wondering why the wheel cowlings weren't combined?
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Zero yaw is a momentary condition.
FYI: EcoModder has a polling function.
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