Duchemin's formula

Duchemin's formula

[du̇·shmanz ‚fȯr·myə·lə]
(physics)
An expression for normal wind pressure per square foot on an inclined surface, N = F [(2sin a)/(1 + sin2 a)], where F = normal wind force in pounds per square foot on a vertical surface, and a = angle of inclination of inclined surface.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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