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Windchill Factor
We know from experience that we feel cooler when winds blows
over us. This is the so-called chilling effect of the wind. The
effect is due to the forced convection heat transfer since the
heat transfer coefficient increases with increasing air velocity.
The equivalent windchill temperature in degrees Fahrenheit can
be determined from:
For velocities less
than 6.4 km/h (3.97 mph) the above equation is not valid and the
wind chill temperature is equal to the air temperature. Also,
this equation should not be used for velocities above 80 km/h
( 48 mph).
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