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Static air pressure

  1. Nov 4, 2013 #1
    Hi Everyone,
    I'm interested in a formula posted in an invention patented 30 years ago for a Tornado Type Wind Turbine. The wind blows through an opening in a tube shaped tower and is turned onto itself. This causes the wind speed to increase to three times the ambient wind speed (and the pressure drops too). The formula contains the static pressure before and after the turbine - they used "P1 - P2" over "1/2 (ρV1)2" - as well as a number of other variables.

    I would like to know how to determine the static pressure at different wind speeds. I keep running into different formulas, but all of them are for different types of calculations (like the pressure against a building due to the wind).

    Can anyone tell me what law and / or which formula I should use for this type of problem? Also, what units should the values of P1 and P2 be (psi, millibars, other)? Thanks so much!
  2. jcsd
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