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Author Topic: Are car or aeroplane outside temperature measures subject to wind chill?  (Read 2208 times)

Offline chris

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Is the "outside temperature" probe on a car subject to wind-chill effects?


 

Offline RD

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“Wind chill” (feeling colder than the actual ambient temperature) only applies to sweaty humans …
Quote
The Wind chill measures the effect of wind speed on the perception of temperature.
In windy conditions, the air feels cooler than it actually is, because of increased perspiration.[evaporation]
http://en.wikipedia.org/wiki/Apparent_temperature_%28disambiguation%29


It does not apply to non-sweating things ...
Quote
For inanimate objects, the effect of wind chill is to reduce any warmer objects to the ambient temperature more quickly. It cannot, however, reduce the temperature of these objects below the ambient temperature
http://en.wikipedia.org/wiki/Wind_chill#Explanation


If anything on the outside of a fast flying aircraft there would be (some) “wind heat” due to air friction.
http://en.allexperts.com/q/Aeronautical-Engineering-1809/2009/8/Air-friction-heating.htm
« Last Edit: 29/04/2011 11:21:08 by RD »
 

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