01-22-2021, 06:42 PM
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#1 (permalink)
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Master EcoModder
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Enclosed monoposto body
I finally located a piece of data, germane to something freebeard had addressed: the aerodynamic impact of enclosing an open-wheeled car.
In addition to the Mercedes-Benz data we already had, Rezvani Motors, Irvine, California, USA, published, in 2016, that their Rezvani 'Beast', enclosed carbon-fiber- body for the Ariel Atom, reduced drag, from Cd 0.65 to Cd 0.35.
The body does add 300-pounds ( about 136- Kg ).
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01-22-2021, 09:47 PM
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#2 (permalink)
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https://en.wikipedia.org/wiki/Rezvani_Beast
I don't contest the point. I just want to know how to optimize an open-wheel car. It appears to be that Aptera's claim is the placing and contour of the pantaloon fenders is optimal.
I just moved the wheels outward and forward in my rat rod design.
Needs pants. Torsion bars in airfoil sections, not the Ariel's bare A-arms.
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01-27-2021, 11:22 AM
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#3 (permalink)
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Aptera
I presume that, as an X-Prize contestant, that they'd be in a position to know. 
Sylph would be another example to look at. She was designed by aeronautical engineer, Matt van Leeuwen. Cd around 0.11 @ Cal Tech's GALCIT tunnel in model form. 
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01-27-2021, 04:03 PM
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#4 (permalink)
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I'd like to help the lurkers, but duckduckgo.com/?q=Sylph+Matt+van+Leeuwen finds makeup artists and Facespook pages. duckduckgo.com/?q=Sylph+GALCIT finds the Guggenheim Aeronautical Laboratory.
[citation neeeded]
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01-27-2021, 05:12 PM
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Master EcoModder
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citation
Quote:
Originally Posted by freebeard
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If I GOOGLE: Sylph by Matt van Leeuwen, it takes me, first up, to a thread here at EcoModder
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01-27-2021, 07:13 PM
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#6 (permalink)
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I really resent Google having it's hooks in Ecomodder. They become unavoidable.
As a test I tried Web Crawler: https://www.webcrawler.com/serp?qc=w...tt+van+Leeuwen.
Their second result: https://www.freeenergyplanet.biz/micro-hydro/rotor.html
I'm curious about the front axle. It looks like an airfoiled beam axle.
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01-27-2021, 07:17 PM
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front axle
I may also be a composite leaf-spring. Don't remember off hand.
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