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Lifting Line Theory and Helmholtz theorems

  1. May 13, 2015 #1
    I was reasoning about prandtl's lifting line theory. Now, a lot of books state that if the the circulation changes across the bound vortex filament a vortex sheet of the same intensity must be shed from the filament following the wake. Is this a consequence of the helmolzt theorem that forbids any variation in circulation along a vortex filament, or not?
  2. jcsd
  3. May 18, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
  4. May 19, 2015 #3


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    Not sure, but it could also be due to Kelvin's theorem so that the net circulation over the entire region remains zero.
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