01-14-2023, 07:51 AM
|
#1161 (permalink)
|
|
Master EcoModder
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,176
Thanks: 125
Thanked 2,802 Times in 1,968 Posts
|
__________________
George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
01-15-2023, 08:13 PM
|
#1162 (permalink)
|
|
Master EcoModder
Join Date: Dec 2014
Location: Radium Springs, NM
Posts: 465
Thanks: 2
Thanked 528 Times in 278 Posts
|
https://youtu.be/GEiMi1GNKM0
Superfast Matt video on how many cars bodies would be more aerodynamic if they were backwards.
__________________
|
|
|
|
|
The Following 2 Users Say Thank You to aerostealth For This Useful Post:
|
|
|
01-15-2023, 08:56 PM
|
#1163 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,500
Thanks: 8,060
Thanked 8,863 Times in 7,316 Posts
|
"There is no place with fewer corners than the Bonneville Salt Flats." 
The humor is well-delivered, but I was disappointed to learn about NACA ducts. I wonder how an Artificial_lntelligence would optimize an air inlet.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
|
|
The Following User Says Thank You to freebeard For This Useful Post:
|
|
|
01-19-2023, 11:42 AM
|
#1164 (permalink)
|
|
Master EcoModder
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,228
Thanks: 24,375
Thanked 7,357 Times in 4,757 Posts
|
NACA submerged inlet
Quote:
Originally Posted by freebeard
"There is no place with fewer corners than the Bonneville Salt Flats."
The humor is well-delivered, but I was disappointed to learn about NACA ducts. I wonder how an Artificial_lntelligence would optimize an air inlet. |
I didn't see that addressed in the video. Can you steer us to that?
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
|
|
|
|
|
01-19-2023, 01:10 PM
|
#1165 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,500
Thanks: 8,060
Thanked 8,863 Times in 7,316 Posts
|
I thought I'd addressed this in in another thread, but for you I figured it out again.
I was wrong , it was a follow-up recommended video.
The Aerodynamics of Speed at 17:40
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
|
|
01-19-2023, 01:48 PM
|
#1166 (permalink)
|
|
EcoModding Apprentice
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805
Thanks: 91
Thanked 460 Times in 328 Posts
|
The way I heard it, the NACA duct was intended for low-flow situations, such as cockpit ventilation. I'm sure that AI would look at the overall situation and only recommend a NACA duct if no high-pressure area was nearby.
Regarding how to design a fast car, I still like John Cobb's approach, choosing a shape with the minimum surface drag rather than minimum frontal area, and fitting the machinery into that.
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
|
|
|
|
|
The Following User Says Thank You to Bicycle Bob For This Useful Post:
|
|
|
01-19-2023, 02:27 PM
|
#1167 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,500
Thanks: 8,060
Thanked 8,863 Times in 7,316 Posts
|
Quote:
|
The way I heard it, the NACA duct was intended for low-flow situations
|
What do you think of the fences?
[I ganked a screenshot, but Ubuntu's Shotwell app is weak]
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
|
|
01-19-2023, 02:44 PM
|
#1168 (permalink)
|
|
EcoModding Apprentice
Join Date: May 2008
Location: N. Saskatchewan, CA
Posts: 1,805
Thanks: 91
Thanked 460 Times in 328 Posts
|
I'd never seen the fences before. Maybe they help if it is in a basically unsuitable location near the rear, and the customer really likes the styling.
__________________
There is no excuse for a land vehicle to weigh more than its average payload.
|
|
|
|
|
The Following User Says Thank You to Bicycle Bob For This Useful Post:
|
|
|
01-19-2023, 03:11 PM
|
#1169 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,500
Thanks: 8,060
Thanked 8,863 Times in 7,316 Posts
|
My thought was that it would augment the vortexes. But I wonder if the effect would increase or decrease with air speed.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|
|
|
|
|
01-20-2023, 11:23 AM
|
#1170 (permalink)
|
|
Somewhat crazed
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 4,354
Thanks: 526
Thanked 1,187 Times in 1,047 Posts
|
The small experiences my excompany had attempting to make the nasa flush duct for aerospatial tells me it's really fussy in the original configuration. We met the drawing tolerances, modded it even more to meet the original nasa specs and were told it never went low drag. Come to find out NASA had the same issues. Does work well for a flush duct, but not what Nasa promised.
__________________
casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
|
|
|
|
|
The Following 2 Users Say Thank You to Piotrsko For This Useful Post:
|
|
|
