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Aerospace Lift formula

  1. Aug 15, 2011 #1
    I'm currently doing the IB (equivalent to A levels) and we have to do a research on a subject and i took aerodynamics, specifically lift and can someone explain to me how the lift formula(F= Lift coeffecient x area x air density x velocity squared ) is found ?

    Thank you very much
     
    Last edited: Aug 15, 2011
  2. jcsd
  3. Aug 15, 2011 #2

    boneh3ad

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    It is found simply through empirical data. The lift coefficient is a proportionality constant that has to be found experimentally, numerically or, rarely, analytically. It isn't a robust physical formula. The more physical formulae for lift and drag are much more complicated.
     
  4. Aug 16, 2011 #3
    Search for Buckingham's Pi Theorem.
     
  5. Aug 17, 2011 #4
    thanks very much !
     
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