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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-23-2017, 03:53 AM   #1 (permalink)
Master EcoModder
 
Join Date: Nov 2013
Location: john o groats
Posts: 277

beastie - '89 toyota hilux dolphin motorhome

Puggie - '98 Peugeot 406 Lx
Thanks: 35
Thanked 49 Times in 41 Posts
Question Mini rear spoiler on estate

Hi am thinking about putting a horizontal spoiler on my estate where the sheet metal goes from upright to angled.
. This is bad photo of what i intend. Spoiler will be about 1 1/2". Also would spoiler on top of tail gate need to removed. Any advice good bad or indifferent gratefully received.
Thanks
Dave

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 04-23-2017, 06:20 AM   #2 (permalink)
Master EcoModder
 
teoman's Avatar
 
Join Date: Jan 2017
Location: Istanbul
Posts: 1,245

A3 - '12 Audi A3
Thanks: 65
Thanked 225 Times in 186 Posts
Autodesk has free windtunnel software. You could have a look at that, it will give you an idea of what eill happen.

I found a similar model to my car on grabcad.com to use in the wind tunnel software.
  Reply With Quote
Old 04-23-2017, 06:24 AM   #3 (permalink)
Master EcoModder
 
teoman's Avatar
 
Join Date: Jan 2017
Location: Istanbul
Posts: 1,245

A3 - '12 Audi A3
Thanks: 65
Thanked 225 Times in 186 Posts
I have no idea what your car is, and it probably does not exist where i live.

But looking at the back side it ressembles this:

https://grabcad.com/library/peugeot-206-2


http://www.autodesk.com/products/cfd/overview
  Reply With Quote
Old 04-23-2017, 06:45 AM   #4 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
I suspect your car is similar to what some call an econobox.

Samples:
Car Wind Tunnel Data


Surf around the forum to find typical solutions to similar vehicles.

What ever you do either needs to be in the airflow, stepped back slightly from the surface plane, or at the surface plane (like the roof).

Doing something way at the back in a area out of the flow isn't going to do anything but rob you of time and money.
__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
Fingie (04-24-2017)
Old 04-25-2017, 01:10 AM   #5 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
Is is anything like this?


https://en.wikipedia.org/wiki/Peugeot_406

What do you hope to accomplish?

Last edited by freebeard; 04-25-2017 at 01:28 AM..
  Reply With Quote
Old 04-26-2017, 08:18 AM   #6 (permalink)
EcoModding Lurker
 
Join Date: Sep 2016
Location: dubai
Posts: 12
Thanks: 0
Thanked 1 Time in 1 Post
don't think that spoiler on the marked position of your picture will help a bit
  Reply With Quote
Old 04-26-2017, 08:30 AM   #7 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
I have seen spoilers in the proposed location, they always looked like marketing department efforts and not something stemming from the aerodynamics lab.

Some of the old air-cooled Beetles of the 1960's were known for adding some fun looking stuff at the tail end but to little effect other than aesthetics. Such things look cool, but are of little to no value. The main value is "looking cool" in almost every case I'm thinking of.
__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
Old 04-26-2017, 10:35 AM   #8 (permalink)
Master EcoModder
 
Join Date: Feb 2010
Location: Elmira, NY
Posts: 1,781
Thanks: 319
Thanked 355 Times in 297 Posts
A station wagon or a van would most likely benefit from extension panels at the roof, sides, and under side. Use clear material near the tail lights.
  Reply With Quote
Old 04-26-2017, 12:07 PM   #9 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 27,562
Thanks: 7,738
Thanked 8,554 Times in 7,041 Posts
Quote:
Some of the old air-cooled Beetles of the 1960's were known for adding some fun looking stuff at the tail end but to little effect other than aesthetics.
[citation needed]

Herrod Helper? Cheese grater?

Quote:
Also would spoiler on top of tail gate need to removed. Any advice good bad or indifferent gratefully received.
Standing by for more info:
  • Is it anything like [that]?
  • What do you hope to accomplish?
  • What is the angle of the lift gate?
  • Is it plus or minus to 30°?
  • Does that orange squiggle represent a Gurney flap/spoiler?
  • Or a detached wing?
  Reply With Quote
Old 04-26-2017, 02:20 PM   #10 (permalink)
Master EcoModder
 
Join Date: Nov 2013
Location: john o groats
Posts: 277

beastie - '89 toyota hilux dolphin motorhome

Puggie - '98 Peugeot 406 Lx
Thanks: 35
Thanked 49 Times in 41 Posts
Hope to keep rear screen clear and reduce drag.
Approx 70-80 degrees from horizontal.
Orange squiggle would be a lip spoiler set as close to horizontal as possiable.

  Reply With Quote
The Following User Says Thank You to chefdave For This Useful Post:
freebeard (04-26-2017)
Reply  Post New Thread


Thread Tools




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