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Homework Help: Bernoulli's Equation and venturi meter

  1. Jan 28, 2009 #1
    1. The problem statement, all variables and given/known data

    A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose cross-sectional area A2 = 0.0600 m2. The gas has a density of ρ = 1.60 kg/m3. The Venturi meter has a cross-sectional area of A1 = 0.0300 m2 and has been substituted for a section of the larger pipe. The pressure difference between the two sections is P2 - P1 = 150 Pa.


    (a) Find the speed v2 of the gas in the larger original pipe.
    (b) Find the volume flow rate Q of the gas.

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Jan 28, 2009 #2


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    Hi keemosabi! :wink:

    Show us what you've tried, and where you're stuck, and then we'll know how to help. :smile:
  4. Jan 28, 2009 #3
    I'm pretty sure I need the equations 9e24fd91e27323e1af81f273ad09e1b7.png
    and av = av, but I don't know where to go from there.
  5. Jan 28, 2009 #4
    Anyone? :(

    Nevermind, I got it. :)
    Last edited: Jan 28, 2009
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