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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-04-2009, 01:14 PM   #1 (permalink)
EcoModding Apprentice
 
QuickLTD's Avatar
 
Join Date: Apr 2009
Location: Tampa, Florida
Posts: 188

Flying Brick - '96 Pontiac Bonneville SE
90 day: 23.57 mpg (US)
Thanks: 1
Thanked 15 Times in 8 Posts
Send a message via AIM to QuickLTD Send a message via Yahoo to QuickLTD
Rain water pattern on rear glass

I noticed a week or two ago patterns forming on my glass when it rains. I wanted to get a picture but I didnt think it was too safe jumpimg into the backseat on the highway lol. The image below is what I observed. The blue shaded area stays completley dry. The red lines represtents the water flowing down the glass in little rivers. As you get closer to the center of the vehicle the lines pull in closer to the centerline starting approximatley 1/4th of the way down then they pull back out towards the outside edge again as depicted in the photo I provided. The area in between the red lines appears to be a film of water that can be dificult to see through. The water in those areas appears to be pushing in toward the redlines combining I would imagine with the water coming off the roof. There is also a small semi-dry almost speckled area near the top of the glass represented in yellow that must be where the the air separates from the vehicle.



I dont know what info I am looking for with this post I just thought the aerodynamics at play here were interesting.

Dean

__________________
1996 Pontiac Bonneville SE 3.8L V6
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-04-2009, 01:35 PM   #2 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
...a "Mother Natures" version of "string testing" right at the boundary layer.

...strings aren't held against the surface, like water is.
  Reply With Quote
Old 09-04-2009, 01:52 PM   #3 (permalink)
Dartmouth 2010
 
SVOboy's Avatar
 
Join Date: Nov 2007
Location: Hanover, NH
Posts: 6,447

Vegan Powa! - '91 Honda CRX DX
Team Honda
90 day: 66.52 mpg (US)
Thanks: 92
Thanked 122 Times in 90 Posts
Send a message via AIM to SVOboy Send a message via MSN to SVOboy Send a message via Yahoo to SVOboy
Looks like the air wraps around your rear 1/4s instead of going straight back, which I believe in normal in many vehicles (my own included)
  Reply With Quote
Old 09-04-2009, 04:58 PM   #4 (permalink)
EcoModding Apprentice
 
QuickLTD's Avatar
 
Join Date: Apr 2009
Location: Tampa, Florida
Posts: 188

Flying Brick - '96 Pontiac Bonneville SE
90 day: 23.57 mpg (US)
Thanks: 1
Thanked 15 Times in 8 Posts
Send a message via AIM to QuickLTD Send a message via Yahoo to QuickLTD
Here is a side view just for a point of reference


__________________
1996 Pontiac Bonneville SE 3.8L V6
  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tuft Testing - "Vortekz" vortex generators on 2003 Jetta Rear Window Deezler Aerodynamics 40 07-15-2017 01:56 AM
Hydrogen Generator Experiment willy57 DIY / How-to 601 08-23-2016 05:53 AM
Rear Wheel Skirt using water heater drain pan cfg83 Aerodynamics 45 02-20-2012 02:08 AM
Use Washing machine to power toilet and save water! bennelson Saving@Home 34 04-02-2010 11:13 PM
Tuft Testing 2nd Gen Honda CRX Rear Glass SVOboy Aerodynamics 29 02-11-2010 01:51 PM



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