Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-16-2023, 02:13 PM   #11 (permalink)
EcoModding Lurker
 
narclepticfool's Avatar
 
Join Date: May 2014
Location: Maine, USA
Posts: 20

Go Go Grocery Getter - '14 Mazda CX 5 Touring
Thanks: 3
Thanked 15 Times in 7 Posts
Freebeard, are you talking about 1, 2, 3, or yes (all 3) in terms of radius-ing the edges? I think you're talking about 1. Unfortunately for the aero of this rig, this was planned ahead to have a gap for an eventual overlanding style rack system (custom built) to go over the cap and also have a ladder/lumber rack to extend over the cab. I know, its going to absolutely kill the aero, but if I can tow less, even with bad aero, I'll still be getting better than the 15-ish mpg I get towing.

Aerohead, I looked up that aerolid. Thats an awesome concept. Also, Im a big fan of your truck! Youve gone all in, and you are super knowledgeable with all this stuff. I appreciate all that you are willing to help and share! Keep up the good work!

Attached Thumbnails
Click image for larger version

Name:	PXL_20230729_135402152_1.jpg
Views:	41
Size:	125.3 KB
ID:	34065  
__________________
  Reply With Quote
The Following User Says Thank You to narclepticfool For This Useful Post:
aerohead (08-17-2023)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 08-16-2023, 02:29 PM   #12 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,481
Thanks: 8,055
Thanked 8,854 Times in 7,308 Posts
The numbering system helps.

Nos. 1 and 2 should be as flush as possible.

No. 3 is where you could apply a radius. A counterexample is the Cybertruck. It has a sharp crease. Either would be better than the exposed raw edge.

Subject to aerohead's confirmation, of course.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
"The future should look like the future" -- Elon Musk
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (08-17-2023)
Old 08-17-2023, 02:45 AM   #13 (permalink)
EcoModding Lurker
 
Join Date: Aug 2023
Location: greece
Posts: 33
Thanks: 17
Thanked 14 Times in 13 Posts
nice job pretty well design
  Reply With Quote
Old 08-17-2023, 10:37 AM   #14 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,221
Thanks: 24,369
Thanked 7,352 Times in 4,753 Posts
'cybertruck'

Quote:
Originally Posted by freebeard View Post
The numbering system helps.

Nos. 1 and 2 should be as flush as possible.

No. 3 is where you could apply a radius. A counterexample is the Cybertruck. It has a sharp crease. Either would be better than the exposed raw edge.

Subject to aerohead's confirmation, of course.
The Tesla is a unique case. It's entire greenhouse is inclined ( raked ) such that, for it's entire length, incuding the vault, it's attacking the flow, always in a favorable pressure negative gradient of accelerating flow, even past the maximum cross-section, where it would ordinarily transition to an adverse, positive pressure gradient.
And since it has five widths in plan-view, with subtle body camber on the entire upper body, and there's actually not a 'straight' surface, except underneath, Fran Von Holzhauzen's getting away with murder in plain view, and no one's figured it out.
The roofline contour is also 'curved' and it's so 'relaxed' that, with respect to the body sides, he's put in enough tumblehome that, edge vortices, and attached longitudinal vortices aren't going to spin up as most fear. The shear isn't there like some imagine. It's not going to produce rear lift either. Quite the contrary. The folks at Loughborough University have figured this out already this year.
Legacy carmakers will be crying into their champagne glasses when they figure it all out.
-----------------------------------------------------------------------------------
Whatever edge radii exists on the cab of the Maverick would probably suffice on the shell. Transitioning to 'more' is better, says Morelli. But there again, we're talking about the most 'expensive' shapes to fabricate known.
You can't create cardboard mockups for testing in a few minutes. You want to come out of the shoot 'close' to the final architecture.
Like I said, duplicating the 1972 Porsche 911 Carrera RS 2.7 'Ducktail' spoiler is going to cost $94,000 in today's Dollars, if you're gonna do it like Hermann Burst and Harm Lagaay.

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following User Says Thank You to aerohead For This Useful Post:
freebeard (08-17-2023)
Reply  Post New Thread


Tags
aero cap, ford maverick, truck shell aerodynamic





Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com