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Water Flow Dilemma

  1. Aug 14, 2014 #1
    If I have a flow , Q1 l/sec and a pressure P1 Bar , Pipe Diameter D1
    how can I work out the change in flow if either/or both the Pressure
    or Pipe Diameter change. Assuming laminar flow and pipe material
    do not change.

  2. jcsd
  3. Aug 14, 2014 #2


    User Avatar

    Staff: Mentor

    Welcome to PF!

    Start with the affinity laws:
  4. Aug 14, 2014 #3

    Use Hagen poiseulle equation

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