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Mass flow rate nitrogen

  1. Jan 29, 2012 #1
    1. The problem statement, all variables and given/known data
    Nitrogen at a pressure of 100 psia and a temperature of 300 F flows through a circular pipe with a diameter of 6 inches. The velocity profile is parabolic with V= [1-(r/3)^2]
    where r is the local radius in inches and V is the velocity in ft/s. Determine the mass flow rate of nitrogen through the pipe.


    2. Relevant equations
    m = pVA


    3. The attempt at a solution

    I suppose this would be a steady flow. Then plug in r (3 inches) into V, get V=0. And mass flow rate is 0. Which makes sense because it's a steady flow. But this answer seems to be too trivial. So I must've screwed up somewhere. Any help would be appreciated. Thanks!
     
  2. jcsd
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