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Momemtum equation

  1. Oct 15, 2008 #1
    1. The problem statement, all variables and given/known data
    The questions are in the attachment. please help!

    2. Relevant equations
    M term is the diffusion.


    3. The attempt at a solution
    for the right hand side terms, it is just adding another velocity term, however on the left hand side term, i dun understand y there will be a 1/2 since momentum equation is just substantial derivative of velocity.
     

    Attached Files:

  2. jcsd
  3. Oct 16, 2008 #2

    tiny-tim

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    Hi oxxiissiixxo! :smile:

    Because D(vivi)/Dt = … ? :wink:
     
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