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Homework Help: Flow development

  1. Jan 8, 2010 #1
    1. The problem statement, all variables and given/known data

    The following stream function holds for a certain flow of water at 20 C.
    psi = 4y - (y^3)/3.

    Is this flow fully developed?

    2. Relevant equations

    psi = 4y - (y^3)/3.

    3. The attempt at a solution

    How am i suppose to tell if a flow is fully developed or not from the stream function? Direct me to what should i study to find the answer.
  2. jcsd
  3. Jan 9, 2010 #2
    I found the solution ..so here it is.... for a flow to be fully developed, it should have no change in the u component. i.e. du/dx = 0
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