Does anyone know an equation for the force of wind per cu. ft. at MPH?

Question

Or even a graph would be nice. Assuming the force (wind) is at zero degrees to the fixed object.

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Answer 1

Taylor's formula gives the following :

p = 0.003 V^2

Where:

p = normal pressure in lbs per square foot

V = wind speed in miles per hour.

To get the force multiply the pressure obtained with the above formula by the area in square feet of the surface facing the wind.

The above formula is being used in the determination of loading for mooring fittings of ships.

Answer 2

Force is per square foot not per cu foot!

F is the force the wind exerts in pounds

A is the area, in this case one square foot. (Not cubic foot)

V the velocity of the wind in MPH

Then F = kpAV^2  

The dimensions of k and p depend upon the units used.

Where k is a connstant and p is the aerodynamic coefficient of the object. A sphere has less air resistance than a flat disc of the same area and thats why rockets are shaped the way they are - to have low resistance.

Answer 3

There is no simple answer to this as the force is dependent on the shape of the object.  Anyhoo, here is one model you can try going by

http://en.wikipedia.org/wiki/Drag_(physi...