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Continuity Equation

  1. Aug 18, 2008 #1
    For the continuity equation (Q= Av, A is cross sectional area, v is velocity), is it independent of the radius of the pipe? If so, why?
  2. jcsd
  3. Aug 18, 2008 #2


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    Well, is A independent of the pipe radius?
  4. Aug 18, 2008 #3


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  5. Aug 19, 2008 #4
    The cross-sectional area is dependent on the radius.

    The velocity must increase as the radius decreases to allow the same volume of fluid to pass through over a given time.
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