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Search took 0.09 seconds. Search: Posts Made By: Vekke
Forum: Aerodynamics 12-28-2024, 03:34 PM
Replies: 13
Views: 623
Posted By freebeard
I checked...

I checked (https://ecomodder.com/forum/member-vekke.html). You don't have any albums yet?

On you Profile page there should be a section on the right to create one or more albums.

I've got 18....
Forum: Aerodynamics 12-28-2024, 12:14 PM
Replies: 1
Views: 213
Posted By aerohead
Unreleased EV1 B-roll Testing and Land Speed Record Footage

https://www.youtube.com/watch?v=AffbrBh1Yq8
Forum: Aerodynamics 12-21-2024, 02:07 AM
Replies: 40
Views: 2,997
Posted By freebeard
Clickbait title. They tease a Part 2 where they...

Clickbait title. They tease a Part 2 where they get to the Heres[sic] Why!
Cybercab’s MASSIVE Tires Are Tesla’s Next Big Breakthrough: Heres Why! -- ?t=433 (https://youtu.be/c0QX8v1s-2o?t=433)
The...
Forum: Aerodynamics 11-04-2024, 12:07 PM
Replies: 40
Views: 2,997
Posted By aerohead
' plan taper '

This plan-view image of GM's Impact-EV1 isn't as technically accurate as a blueprint, but you can discern that AeroVironment/GM did elect to narrow 'all' of the aft-body for pressure recovery.
In...
Forum: Aerodynamics 11-04-2024, 11:35 AM
Replies: 40
Views: 2,997
Posted By aerohead
' M-B Vision EQXX

The best side elevation photograph of the EQXX that I could come up with, short of a 'blueprint', indicated that it's tearing edge intersected the roofline contour of the 'Template Part-C', as did...
Forum: Aerodynamics 11-01-2024, 11:56 AM
Replies: 40
Views: 2,997
Posted By aerohead
' drawing '

* I picked up Jamie's computer rendering of the Robo Taxi Monday afternoon.
* I placed it on the light table and compared it's roof contour to everything I had.
* The 'Robo's' roofline is most like...
Forum: Aerodynamics 08-29-2024, 10:28 AM
Replies: 16
Views: 1,149
Posted By aerohead
1970 PORSCHE 914 GC vs CD

The following were recorded for this car:
220mm GC = Cd 0.3955
210mm GC = Cd 0.3893
200mm GC = Cd 0.3813
190mm GC= approx. Cd 0.374
180mm GC = Cd 0.367
165mm = Cd 0.357
140mm = Cd 0.340
0mm =...
Forum: Aerodynamics 08-28-2024, 06:29 PM
Replies: 35
Views: 2,525
Posted By RBurke83
One wheel dry run

I put the front drivers disc on and did a quick and dirty tuft test. The smooth cover showed noticeably less disruption then the stock 20”. I was actually a little surprised at how badly the stock...
Forum: Aerodynamics 08-24-2024, 10:13 AM
Replies: 16
Views: 1,149
Posted By aerohead
' inch '

From the WS12 Aerodynamic Performance Research Findings, Coventry University, 2012:
'There is an almost universal 'rule of thumb' which states that drag coefficient increases by delta Cd = 0.004 for...
Forum: Aerodynamics 08-12-2024, 02:29 PM
Replies: 35
Views: 2,525
Posted By RBurke83
Dress Rehearsal

Cut out the first disc. I’ll be cleaning up the edge and doing some finish work like epoxy sealing the edge and spraying UV stabilized clear coat but I’m happy with the initial look. I think at...
Forum: Aerodynamics 08-11-2024, 06:29 PM
Replies: 70
Views: 4,592
Posted By Ecky
Wheels aren't quite as light as advertised. I...

Wheels aren't quite as light as advertised. I believe "2.8kg" was supposed to be for the 4x5.5 wheels, and these are 14x6. Even so, 3.6kg or 7.9lbs is light.

The 38mm lugs were just about the...
Forum: Aerodynamics 04-26-2024, 04:19 PM
Replies: 15
Views: 5,153
Posted By RBurke83
I’m only 10 years late to the party but are these...

I’m only 10 years late to the party but are these still available or is there similar product? I purchased button head zip tie plugs on Amazon but they protrude over a 1/4”. My ioniq 6 has 20 inch...
Forum: Aerodynamics 04-20-2024, 12:34 PM
Replies: 36
Views: 2,360
Posted By freebeard
I'm having trouble sorting out whether the...

I'm having trouble sorting out whether the viscosity of the fluid needs to be greater or less at smaller scales.

Gnats feel air like we do water, so maybe a less viscous fluid like ethanol?
...
Forum: Aerodynamics 03-15-2024, 10:05 AM
Replies: 125
Views: 11,762
Posted By ennored
Another video. Cybertruck at A2 Wind Tunnel...

Another video.

Cybertruck at A2 Wind Tunnel (https://www.youtube.com/watch?v=B43-G5-jwok)
Forum: Aerodynamics 03-11-2024, 10:55 AM
Replies: 25
Views: 3,193
Posted By aerohead
' how better '

There's two things going on with the 'Highland.'
1) Having a single inlet is an aerodynamic advantage in it's own right.
2) And harvesting all the air, right at the forward stagnation point, allows...
Forum: Aerodynamics 02-22-2024, 11:30 AM
Replies: 5
Views: 720
Posted By aerohead
'CHINA: Invasion of low drag cars.....................'

https://uk.motor1.com/news/707512/chinese-cars-more-aerodynamic-than-european/
Forum: Aerodynamics 02-15-2024, 11:02 AM
Replies: 111
Views: 10,069
Posted By aerohead
' 50% '

If one does the Road Load calculations for 'ANY' car, whether Otto-cycle, Diesel-cycle, Otto-Hybrid, Diesel-hybrid, ditto Plug-in hybrids, or BEV, they'll find that, at some thermally-equilibrated,...
Forum: Aerodynamics 01-11-2024, 10:34 AM
Replies: 188
Views: 278,162
Posted By aerohead
' which is correct?'

https://ecomodder.com/forum/showthread.php/aerodynamic-streamlining-template-part-c-9287.html

1) Both the 'green' and 'white' contour comparisons for the Aston Martin are 'correct', as far as...
Forum: Aerodynamics 01-06-2024, 11:57 AM
Replies: 5
Views: 617
Posted By aerohead
Hilda Margeret Lyon, aero-hydrodynamics

Here's a 'giant' who's shoulders we stand on:https://womenengineerssite.wordpress.com/2018/10/09/hilda-lyon-airships-windtunnels-and-submarines/
PS: I apologize for misspelling her name. 'Margeret'...
Forum: Aerodynamics 01-05-2024, 05:09 PM
Replies: 9
Views: 618
Posted By Phase
Chery .16 CD drag car

https://cnevpost.com/2023/11/02/chery-unveils-concept-car-low-wind-resistance/

very interesting chinese concept design for low drag.

rear box cavity fins and '' shocker'' flat wheel covers
...
Forum: Aerodynamics 12-11-2023, 11:09 AM
Replies: 2
Views: 437
Posted By aerohead
Fully Charged Audi E-Tron GT wind tunnel video

Apologize if this has been posted already. It's worth a look if you haven't seen it....
Forum: Aerodynamics 11-30-2023, 11:10 AM
Replies: 37
Views: 3,998
Posted By aerohead
misc. wheel cover drag quanta

Here's some past published data, just to muddy the waters:
1) for the Cd 0.312, 1982 Pontiac Trans Am Firebird,
* the OEM ventilated convex covers, compared to the naked, welded pressed- steel...
Forum: Aerodynamics 11-27-2023, 11:36 AM
Replies: 37
Views: 3,998
Posted By aerohead
' inside wheel covers'

https://ecomodder.com/forum/member-aerohead-albums-other+vehicles+1-picture115-open-wheel-racer-elevated-view.jpgMany years ago, I got to get up close and personal with Danika Patrick's INDYCAR...
Forum: Aerodynamics 10-06-2023, 07:50 AM
Replies: 111
Views: 10,069
Posted By CapriRacer
To completer this picture we need to know what...

To completer this picture we need to know
what affect inflation pressure has on both traction and wear.

Further, that graph is for a particular tire under a certain load. When tires are...
Forum: EcoModding Central 10-04-2023, 07:00 AM
Replies: 10
Views: 1,974
Posted By MetroMPG
Tested: rolling resistance of Dunlop Enasave vs. Bridgestone RE92 tires

OK! I FINALLY got around to doing this...

Within the past year or so, I happened to score both a set of nearly new Dunlop Enasaves on alloys AND a set of nearly new Bridgestone Potenza RE92's on...
Showing results 1 to 25 of 273
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