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Re: [TowerTalk] Wind Pressure Equation

To: Faizul Ahmad <faizulahmad83@yahoo.com>, towertalk@contesting.com
Subject: Re: [TowerTalk] Wind Pressure Equation
From: Jim Lux <jimlux@earthlink.net>
Date: Sat, 22 Oct 2005 14:57:19 -0700
List-post: <mailto:towertalk@contesting.com>
At 06:38 AM 10/22/2005, Faizul Ahmad wrote:
>hi,
>I'm faizul from malaysia.i'm the 4th year machanical
>student who doing my project that study about wind
>pressure around low-rise building.i have problem how
>to measure the wind pressure.i get an idea to find the
>pressure by measure the wind velocity by using
>annemometer.But i don't know how to make a relation
>between wind velocity and wind pressure.do u have any
>eaquation that suitable to my case?i really need your
>help.thank you.


The basic wind pressure equation is F = 1/2 * rho * U^2 * area * Cd
where U is the wind velocity, rho is the density, area is the appropriate 
area (usually cross section) and Cd is the coefficient of drag, which is 
shape dependent.

If your library has it, Applied Fluid Dynamics Handbook by Robert D. 
Blevins (ISBN 0894647172), has a whole chapter on architectural wind 
effects.  (the latest versions are published by Krieger, in Malabar, FL. 
http://www.krieger-publishing.com/html/stackaabb_69.html



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_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.

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