Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: How to find Velocity V2 with bernoulli Equation?

  1. Dec 2, 2007 #1
    Water is fed via a 200m long, 125mm diameter pipe to a field. The take is 12m elevation. the friction factor is 0.008 and k factors add up to 3.3.

    Pressure is all atmospheric and V1 is 0.

    2. Relevant equations

    Bernoulli Equation with the addition of friction, elevation and k factors

    3. The attempt at a solution

    V^2(2) = 2g+Z(2)+4f l/d + k

    I have managed to find around 4 different equations and think they are all wrong. I have excluded parts of the equation as they are equal to zero on boths parts of equation.

    What i need to do is solve V(2) and obtain the mass flow rate?

    Help is very much appreciated.
  2. jcsd
  3. Dec 3, 2007 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    What are V1 and V2? I'm not familiar with the term "take". Is this a simple gravity feed?

    Also, if you have not done this above, please write the original question EXACTLY as it was given to you.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook