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Old 01-02-2013, 12:25 AM   #4 (permalink)
ryannoe
Not Ordinary Engineering
 
Join Date: May 2011
Location: Alabama
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Quote:
Originally Posted by California98Civic View Post
Can this be generalized, all other factors besides temp being equal? 5*F = approx 1% change in drag?
A ballpark figure is just that... but...

My initial response is no because drag is a factor of density... and density is a factor of two variables: pressure and temperature.

Since there are two variables, it would be irrational to assume it is linear.

**KennyBobby's point drastically changes the outcome. KUDOS to KennyBobby**

Current Las Vegas weather compared to last night's Huntsville's weather constitutes 6.8% decrease in drag in Las Vegas compared to Huntsville at only a 6F difference in temperature.

-Ryan

Last edited by ryannoe; 01-02-2013 at 04:28 PM.. Reason: KennyBobby found a flaw with using Weather.com pressures, recalculated the figures!
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