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Structure Function Help

  1. Jun 7, 2014 #1

    joshmccraney

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    Gold Member

    Hello again pf!

    i was wondering if any of you could help me with the intuition for the following structure function:
    $$S_{xy}(R) = \overline{\big[v_x (x + R) - v_x(x)\big] \big[v_y(x+R) - v_y(x) \big]}$$
    where ##v_i## is the velocity in the ##i## direction, ##x## is distance, and ##R## is a displacement in ##x## (##R## need not be infinitesimal, and in fact isn't always!). Now this looks something like covariance mixed with a derivative?

    can i get any help here?

    thanks!!
     
  2. jcsd
  3. Jul 1, 2014 #2
    I'm sorry you are not generating any responses at the moment. Is there any additional information you can share with us? Any new findings?
     
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