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Fluids - ME315

  1. Feb 20, 2006 #1
    THis is more of a proof problem. I worked the problem up until the point where it begins a replacement for r/R.

    The book has enough examples to understand it up until that point.. but then it jumps from radii to simply the n term.

    I got a copy of the solution from the professor and I just don't get why they do that. I can't integrate that function in any way to get that new n-based equation.

    Any ideas on what's going on? I cant find anything in the book on that.

    Attached Files:

  2. jcsd
  3. Feb 21, 2006 #2
    so we've sort of got it figured out.. the inner radius is r. the outer is R. the n in the system is just the ratio of the centerline velocity, and average velocity. relate that to the r and R.
    and you can have n = r/R = u(bar) / u(c) ... and do a replacement and then do integration by parts.. and it all works out.. eventually.. the intergration by parts was a pain.
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