11-22-2011, 05:16 PM
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#11 (permalink)
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Master EcoModder
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smoke
Glad they filled the wake with smoke to allow a look back there.That's the money-shot!
Thank you very much!
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11-22-2011, 06:00 PM
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#12 (permalink)
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Aero Wannabe
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Quote:
Originally Posted by kach22i
What is that, and what would that look like?
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I don't mean to hijack but the view with the smoke filling the wake made me wonder if something like Vekke built for his VW Lupo would work on my Golf. Here is a tuft test of a Vekke-spoiler, or more accurately, a Kamm-back on his Lupo.
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60 mpg hwy highest, 50+mpg lifetime
TDi=fast frugal fun 
https://ecomodder.com/forum/showthre...tml#post621801
Quote:
Originally Posted by freebeard
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.
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11-23-2011, 08:15 AM
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#13 (permalink)
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Recreation Engineer
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Money shot
Quote:
Originally Posted by aerohead
Glad they filled the wake with smoke to allow a look back there.That's the money-shot!
Thank you very much!
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Phil, in that footage at what time stamp do your eyes see best data please? I'd love to improve my vision.  |
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11-28-2011, 06:23 PM
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#14 (permalink)
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Master EcoModder
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3:06-07
Quote:
Originally Posted by KamperBob
Phil, in that footage at what time stamp do your eyes see best data please? I'd love to improve my vision. |
Bob,right at the end,at 3:06-3:07 the wake is fully visualized,close-quarters to the body.
If the test section were longer,we'd see the turbulence trailing back for hundreds of feet.
As Hot Rod Magazine says,"it's the poison of speed." Also mpg! |
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11-30-2011, 10:39 AM
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#15 (permalink)
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Recreation Engineer
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Quote:
Originally Posted by aerohead
Bob,right at the end,at 3:06-3:07 the wake is fully visualized,close-quarters to the body.
If the test section were longer,we'd see the turbulence trailing back for hundreds of feet.
As Hot Rod Magazine says,"it's the poison of speed." Also mpg!
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Thanks, Phil. Clearly my eyes have much to learn.
BTW, Phil did you get my email? I'll be leaving AR soon (missed Bondo - frown) and passing through TX near Sanger en route to desert SW area for winter. If you're home I'd love to stop and shake hands. 
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11-30-2011, 07:04 PM
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#16 (permalink)
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Master EcoModder
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email
Quote:
Originally Posted by KamperBob
Thanks, Phil. Clearly my eyes have much to learn.
BTW, Phil did you get my email? I'll be leaving AR soon (missed Bondo - frown) and passing through TX near Sanger en route to desert SW area for winter. If you're home I'd love to stop and shake hands. |
Sorry Bob,I haven't looked at email in weeks.I'll try and get there and catchup asap.Look forward to a visit if it works out.Thanks!
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