View Single Post
Old 06-29-2013, 12:06 AM   #17 (permalink)
sendler
Master EcoModder
 
sendler's Avatar
 
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935

Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
Thanks: 326
Thanked 1,315 Times in 968 Posts
Quote:
Originally Posted by redyaris View Post
The first question I have is where do the reaction forces take place when a side wind acts on a motorcycle?
Good point. The strings experiment is interesting but less relevant than I first thought. It is only a side wind when the bike is parked. Any time the bike is moving forward faster than the side wind's velocity, the apparent wind will be a vector off of the front. Making the streamlined bike a symmetrical wing with an angle of attack.
.
.

.
.
regardless of where the static CoP from the side is, The streamline shape with an angle of attack will have the greatest lift (side) force somewhere toward the front near the point of maximum width.
.
  Reply With Quote