Interesting Aerodynamic Cars (Mike Vetter's ETV, also Avion)

[freebeard]

justacarguy.blogspot.com/2024/01/ces-is-strange-place-to-find

That windshield....

[aerohead]

https://www.reddit.com/r/WeirdWheels...ray/?rdt=47149

Originally Posted by freebeard

justacarguy.blogspot.com/2024/01/ces-is-strange-place-to-find

That windshield....

I suppose we could call it progress, however, Paul Jaray was doing this in 1922.

[freebeard]

....reminds me of the Studebaker Starlight coupe.

[kach22i]

I'd like to see a rear 3/4 view and see how those front wheel arches are terminating.

Is the air supposed to detach at an ending point as on wheel spats?

[freebeard]

https://duckduckgo.com/?q=peterbilt+...ages&ia=images

It appears to be a conventional fat fender, OTOH the cab widens abaft the fender to encourage reattachment. Perhaps what you are hoping for is the Volvo Supertruck?


https://en.shiftdelete.net/volvo-unv...an-tesla-semi/

[Piotrsko]

What happened d to the guy that used to be here designing low drag semi's?

[sgtlethargic]

"Hammerhead" solar car. I wonder what the Cd is.

[freebeard]

Any idea what year that was? I think Elon Musk appropriated the form factor.

Anyways, I'm on page 105 that begins with #4161 (post #4201 will start a new page). Scrolling down to the recent post is really a trip. Post #4175 has a proposal for the same thing, It was criticized for the inverted nose creating front end lift.



edit:
I've been thinking about the M-hull boat hull and Luigi Colani's manta ray noses. The M-hull creates vortexes that feed air into a difusser. Colani may have been onto vortex generators that work for land instead of water.

[freebeard]

Originally Posted by Piotrsko

What happened d to the guy that used to be here designing low drag semi's?

Photobucketed into oblivion. ecomodder.com/forum/showthread.php/airflow-bullettruck-project-aerodynamic-modified-class-8-transport-20704.html

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[aerohead]

https://www.sungroper.asn.au/gallery...er-recent.html

Originally Posted by sgtlethargic

"Hammerhead" solar car. I wonder what the Cd is.

All I could find is a link to the September, 2007, World Solar Challenge, entrant, associated with the 'Sungroper' solar racer, from which HAMMERHEAD is the lineal descendent.
There appears to be no specifications listed for the car.
Some aerodynamic demerits which would have to be associated with the design:
1A) zero leading edge radii at bonnet-to-body main body sides
1B ) zero plan-view nose 'sweep'
2) zero A-Pillar radii
3) extremely-upright, de-raked windscreen
4) little-to-no windscreen header-to-rooftop radius
5) essentially zero plan-view body camber
6) zero beltline camber
7) zero greenhouse camber
8) zero, side elevation, roof-to-backlite 18-degree EBLA transition zone
9) zero backlite-to-B-Pillar intersection radius
10) probability of full flow separation on 10-degree diffuser upsweep
11) zero plan-view aft-body boat-tailing
12) 'catamaran' type wheel fairing inefficiency penalty
13) inordinate 'thickness' of catamaran wheel fairings
14) interference drag of hook-vortices associated with the rooftop 'winglets'
--------------------------------------------------------------------------------------
I don't have the materials I'd need to parse out estimated drag penalties for each 'component'. I'll drag that with me Monday.