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Derivation of Kutta Joukowski condition

  1. Mar 16, 2012 #1

    DrDu

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    Can the Kutta Joukowski condition be derived from the Navier Stokes equations in the limit of vanishing viskosity?
    Is there some literature on this point?
     
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  3. Mar 16, 2012 #2

    vanhees71

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  4. Mar 16, 2012 #3

    boneh3ad

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  5. Mar 16, 2012 #4

    DrDu

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  6. Mar 17, 2012 #5

    DrDu

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    More specifically: I was reading on how physically correct solutions to the frictionless Burgers equation are constructed when a shock appears as "weak solutions" of the general equation in the limit of vanishing viscosity. Entropy is then only generated at the shocks and searching for a solution which minimizes entropy production leads to the correct result. In easy two dimensional air foil problems one only has to fix the value of rotational flow. I wonder whether this can not also be reduced to a problem of minimizing entropy.
    In the inviscid flow the velocity becomes infinite at a sharp trailing edge for almost all values of the rotation. If a small viscosity is introduced, velocity is no longer infinite but there would probably a lot of entropy be generated.
     
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