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-   -   Another visual quiz (https://ecomodder.com/forum/showthread.php/another-visual-quiz-38623.html)

JulianEdgar 09-27-2020 03:51 AM

Another visual quiz
 
I am not sure if this is easier or harder than the last one!

What is the shape of the car that has this top and bottom pressure distribution?

https://i.postimg.cc/yd6TnRRX/IMG-0861.jpg

And I must admit that I couldn't get the shape right by looking only at the pressures! (I just tried, and I wasn't waaaay off, but I also didn't produce a shape that was immediately recognizable as the particular car.)

Vman455 09-27-2020 08:05 AM

Negative pressure spike 1/3 of the way back, doesn't look like it has a positive pressure windshield bump. Are we looking at something mid-engine with a constant frunk/windshield angle, like a Diablo or Murcielago?

jakobnev 09-27-2020 02:55 PM

1 Attachment(s)
Positive pressure at the rear? Is this a bonkers race-car?

https://ecomodder.com/forum/attachme...1&d=1601232754

Added a bit more detail because the center doesn't tell the whole story.

JulianEdgar 09-27-2020 03:53 PM

The pressure at the rear goes up for both the upper and lower surfaces. This would be my guess (and it's not right):

https://i.postimg.cc/W35RCdvV/IMG-0862.jpg

JulianEdgar 09-28-2020 05:21 PM

People sick of visual pressure quizzes? Oh well, here's the car:

Pride of Maryland 1990 solar race car.

https://hub.umd.edu/sites/default/fi..._1920x1080.gif

freebeard 09-28-2020 05:55 PM

Quote:

People sick of visual pressure quizzes? Oh well, here's the car:
Not sick, just tired. :)

Maybe space them out or do more multiple choice instead of open-ended questions?

jakobnev 09-29-2020 03:14 AM

Well it was a bonkers race-car. :D

It's pretty hard to see the angle all the way at the rear because one is visually integrating the curvature, and there is a growing error when doing that.



Quote:

Maybe space them out or do more multiple choice instead of open-ended questions?
Open-ended is way more fun.

aerohead 09-30-2020 01:16 PM

solar racer
 
What a relief! I was stuck in 'production car mode'!:p

aerohead 09-30-2020 01:18 PM

sick
 
No way, keep 'em comin' if you have them. It's a great mental exercise!:thumbup:


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