Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Aerospace Center of pressure of a blade (NACA4412)

  1. Nov 17, 2009 #1
    We are now finding the twist moment of the blades of wind turbine with a given point on blade sections.

    How to find the center of pressure of a wind turbine blade with the standard of NACA4412.
    What is the equation?

    Also , How to find the pressure distribution along the chord.
  2. jcsd
  3. Nov 17, 2009 #2
    Panel method.
  4. Nov 17, 2009 #3


    User Avatar
    Science Advisor

    For a symmetrical section, the center of pressure is one-quarter chord length. However, for real or cambered airfoils, the answer is not as clear. There is a good section in this book that I was able to find:
    http://books.google.com/books?id=3o...q=center of pressure of naca profiles&f=false

    that explicitly has a section on pitching moment coefficient. Look at page 82.
  5. Nov 17, 2009 #4
    That is a very good book I've referenced often.
  6. Nov 17, 2009 #5
    Also, the table minger gave is at one AoA. I have the actual section data for any AoA on page 488 of Theory of Wing Sections by Abbot & Von Doenhoff. You should find that book and look on that page.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook