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Old 09-27-2020, 03:51 AM   #1 (permalink)
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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?



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.)

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Old 09-27-2020, 08:05 AM   #2 (permalink)
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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?
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Old 09-27-2020, 02:55 PM   #3 (permalink)
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Positive pressure at the rear? Is this a bonkers race-car?



Added a bit more detail because the center doesn't tell the whole story.
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Old 09-27-2020, 03:53 PM   #4 (permalink)
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The pressure at the rear goes up for both the upper and lower surfaces. This would be my guess (and it's not right):

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Old 09-28-2020, 05:21 PM   #5 (permalink)
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People sick of visual pressure quizzes? Oh well, here's the car:

Pride of Maryland 1990 solar race car.

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Old 09-28-2020, 05:55 PM   #6 (permalink)
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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?
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Old 09-29-2020, 03:14 AM   #7 (permalink)
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Well it was a bonkers race-car.

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.
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Old 09-30-2020, 01:16 PM   #8 (permalink)
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solar racer

What a relief! I was stuck in 'production car mode'!
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Old 09-30-2020, 01:18 PM   #9 (permalink)
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sick

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

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