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Old 01-08-2010, 10:44 PM   #11 (permalink)
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I've built full-sized prototypes with foam. Very very... VERY messy!

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Old 01-09-2010, 12:39 AM   #12 (permalink)
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I started leaving the snow on the roof of my Jeep to get an idea of what the flow did on top. Looks like the air re-attaches about 1/3 of the way back on the roof.
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Old 01-09-2010, 12:49 AM   #13 (permalink)
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Here's a stratus I saw at school today... Looks a bit like a Lotus Esprit.
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Old 01-09-2010, 12:50 AM   #14 (permalink)
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That stupid snow completely failed to fix the flow over the backlight I say we fire Mother Nature.
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Old 01-09-2010, 11:08 AM   #15 (permalink)
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Quote:
Originally Posted by Frank Lee View Post
That stupid snow completely failed to fix the flow over the backlight I say we fire Mother Nature.
Give her a break, she ran out due to global warming.
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Old 11-22-2010, 03:50 PM   #16 (permalink)
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Try looking at the shapes that snow gets drifted into against other objects besides just on cars. And also take into account the liquid density of snow. Wet snow will pack and freeze and the shape we see may not be so much the result of aerodynamics as of imobility. While dry powder snow flows quite nicely and should leave some interesting ideas to test.
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Old 02-09-2013, 12:44 PM   #17 (permalink)
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I did today some snow testing with powder snow and got pretty good results:





Testing will continue tomorrow morning because it will propably as much next night, already 3 cm .
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Old 02-09-2013, 06:47 PM   #18 (permalink)
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That's what he's saying, anywhere the snow stayed is a sign of poor air flow.

Wonder what you could use in a warmer climate, talcum powder, bull dust,
flour?
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Old 02-09-2013, 06:58 PM   #19 (permalink)
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Oh wow, that's awesome! You can even see how door handles mess with your aero.
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Old 02-10-2013, 05:04 AM   #20 (permalink)
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Yes if your car aero is perfect there would not have any snow left after test. I would be interesting to see for example aerocivic do the similar test. he has pretty good Cd but pretty rough surfaces. So the pockets should fill with snow.

Today snow was thickier and results not so good:



So you need powder snow. If you are able to make snow balloons it is way too thick.

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