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Re: [Fot] Canopy question

To: Ponostyle <ponobill@gmail.com>, Jim Gray <toodamnfunky@comcast.net>
Subject: Re: [Fot] Canopy question
From: Michael Porter <mdporter@dfn.com>
Date: Thu, 2 Jul 2020 15:48:44 -0600
Cc: fot@autox.team.net
Delivered-to: mharc@autox.team.net
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References: <1069422137.1741262.1593720768852.ref@mail.yahoo.com> <1069422137.1741262.1593720768852@mail.yahoo.com> <7c258ead-3725-ac64-6b81-eca8567cb560@tonydrews.com> <009201d650b1$feec2290$fcc467b0$@comcast.net> <984C25C8-4EC4-429B-A9A1-1B6DB7334E35@ponostyle.com>
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On 7/2/2020 3:24 PM, Ponostyle wrote:
> The power of the wind increases as the square of velocity.

Umm, actually, wind power increases with the cube of the velocity.

Double the wind speed and the power goes up by a factor of eight.  It's 
why hurricanes and tornadoes are so damned destructive.

*Total wind power, P_t = (Ï?AC_i ^3 )/2*

Where, Ï? = density of air
A = swept area perpendicular to wind direction
C_i = incoming wind velocity


Cheers.

-- 


Michael Porter
Roswell, NM


Never let anyone drive you crazy when you know it's within walking distance....


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    <div class="moz-cite-prefix">On 7/2/2020 3:24 PM, Ponostyle wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:984C25C8-4EC4-429B-A9A1-1B6DB7334E35@ponostyle.com">
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      The power of the wind increases as the square of velocity.</blockquote>
    <p>Umm, actually, wind power increases with the cube of the
      velocity.</p>
    <p>Double the wind speed and the power goes up by a factor of
      eight.  It's why hurricanes and tornadoes are so damned
      destructive.</p>
    <p><strong>Total wind power, P<sub>t</sub> = 
(Ï?AC<sub>i</sub><sup>3</sup>)/2</strong><br>
       <br>
      Where, Ï? = density of air<br>
      A = swept area perpendicular to wind direction<br>
      C<sub>i</sub> = incoming wind velocity</p>
    <p><br>
    </p>
    <p>Cheers.<br>
    </p>
    <pre class="moz-signature" cols="72">-- 


Michael Porter
Roswell, NM


Never let anyone drive you crazy when you know it's within walking 
distance....</pre>
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