« previous next »
Pages: 1 2 [3]   Go Down

Author Topic: Open wheels and aero............  (Read 10990 times)

0 Members and 1 Guest are viewing this topic.

Offline Sumner

  • Global Moderator
  • Hero Member
  • ***
  • Posts: 4078
  • Blanding, Ut..a small dot in the middle of nowhere
    • http://purplesagetradingpost.com/sumner/sumnerindex.html
Re: Open wheels and aero............
« Reply #30 on: February 18, 2009, 11:34:20 PM »
Quote from: SPARKY on February 18, 2009, 11:01:20 PM
........and keeping it "nailed" as it went around..............

Smart thinking or were you just too scared to remember to lift  :wink:.  I think you have been watching some NASCAR (no jokes please Kent  :-P).  Sparky wasn't that video on SCTA or YouTube? 

It is warming up getting closer to sailboat time,

Sum
Logged

Offline Bville701

  • Sr. Member
  • ****
  • Posts: 580
Re: Open wheels and aero............
« Reply #31 on: February 18, 2009, 11:37:55 PM »
Once all that snow melts you should have a lake in your front yard.     :-D      :cheers:
Logged
Ryan LeFevers

701 C/GMR - 216.509 MPH El Mirage Record Holder

El Mirage "Dirty 2" Club Member

Offline SPARKY

  • Global Moderator
  • Hero Member
  • ***
  • Posts: 6912
Re: Open wheels and aero............
« Reply #32 on: February 18, 2009, 11:44:04 PM »
Nope---its on Landspeedracingvideos.com or what ever Marks site is---under free video clips ---spins 2 I think
« Last Edit: February 19, 2009, 12:05:22 AM by SPARKY »
Logged
Miss LIBERTY,  changing T.K.I.  to noise, dust, rust, BLUE HATS & hopefully not scrap!!

"Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure or nothing."   Helen Keller

We are going to explore the racing N words NITROUS & NITRO!

Offline Sumner

  • Global Moderator
  • Hero Member
  • ***
  • Posts: 4078
  • Blanding, Ut..a small dot in the middle of nowhere
    • http://purplesagetradingpost.com/sumner/sumnerindex.html
Re: Open wheels and aero............
« Reply #33 on: February 19, 2009, 12:50:57 AM »
Quote from: SPARKY on February 18, 2009, 11:44:04 PM
Nope---its on Landspeedracingvideos.com or what ever Marks site is---under free video clips ---spins 2 I think

http://www.landspeedracingvideo.com/videos.html

Ryan, the snow is gone except for a few piles on the north side.  3 feet in December, not an inch in January and 6 inches this month.  We have actually been in the 50's a couple days and out sun bathing getting ready for our first big cruise  8-),

Sum
Logged

Offline Bville701

  • Sr. Member
  • ****
  • Posts: 580
Re: Open wheels and aero............
« Reply #34 on: February 19, 2009, 12:58:01 AM »
It's been in the 60's here and that is still too cold for sun bathing for me.    :-D   Enjoy the boat, but don't forget about the lakester   :cheers:
Logged
Ryan LeFevers

701 C/GMR - 216.509 MPH El Mirage Record Holder

El Mirage "Dirty 2" Club Member

Offline wolcottjl

  • Full Member
  • ***
  • Posts: 289
Re: Open wheels and aero............
« Reply #35 on: February 19, 2009, 05:30:34 PM »
I downloaded a paper put together by BMW -- SAE 2006-01-0805 Aerodynamic forces of exposed and enclosed rotating wheels xxxxxx etc...

A lot to read and digest but - One thing that land speed racers know is to run a moon disc or cover on a wheel.  An interesting thing that they found in the wind tunnel besides lower drag was lower lift. 

The numbers on the tire that they tested are - Open wheel - drag 23.6  lift 3.1 --- open wheel with cover drag 21.2 lift 1.7

There were some interesting details on an enclosed wheel as well.  For instance on a BMW z4 they put a 1.3" spoiler at the front lip of the wheel well.  Drag without -10.9 lift -7.3  with spoiler drag -6.7 lift -4.1


Big document - probably take my slow brain a week or 2 to wrap my head around it.
« Last Edit: February 19, 2009, 06:21:30 PM by wolcottjl »
Logged
Joel Wolcott
Moving to 2 wheels in 2010

Offline 4-barrel Mike

  • Hero Member
  • *****
  • Posts: 3173
  • Any fool can drive a V8
Re: Open wheels and aero............
« Reply #36 on: February 19, 2009, 07:21:47 PM »
http://www.sae.org/technical/papers/2006-01-0805

I'm just a poor boy.  Let us know if it's worth the $15.00 charge.

Mike
Logged
Mike Kelly - PROUD owner of the V4F that powered the #1931 VGC to a 82.803 mph record in 2008!
Pages: 1 2 [3]   Go Up
« previous next »