View Single Post
Old 01-27-2020, 03:35 PM   #13 (permalink)
Vman455
Moderator
 
Vman455's Avatar
 
Join Date: Feb 2012
Location: Urbana, IL
Posts: 1,936

Pope Pious the Prius - '13 Toyota Prius Two
Team Toyota
SUV
90 day: 51.62 mpg (US)

Tycho the Truck - '91 Toyota Pickup DLX 4WD
90 day: 22.22 mpg (US)
Thanks: 199
Thanked 1,801 Times in 938 Posts
Reynolds number is a function of test length and fluid velocity. Decrease one by a factor of 10, and the other must increase by the same factor to get the same Re in fluid of the same density.

Re = [(density)(velocity)(length)]/(dynamic viscosity) = [(velocity)(length)]/(kinematic viscosity)
__________________
UIUC Aerospace Engineering
www.amateuraerodynamics.com
  Reply With Quote
The Following User Says Thank You to Vman455 For This Useful Post:
aerohead (01-29-2020)