1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Bernoulli and waterflow

  1. Mar 30, 2016 #1
    1. The problem statement, all variables and given/known data
    http://imgur.com/rhaQabj
    radius of watertank = 5.5cm

    2. Relevant equations
    https://en.wikipedia.org/wiki/Bernoulli's_principle
    https://en.wikipedia.org/wiki/Darcy–Weisbach_equation

    3. The attempt at a solution
    I've tried to put up to equations on the form:
    134=k*sqrt(x+0.6), 75=k*sqrt(x+0.3).

    Where k is the constant and x is the height from the bottom of the tank to the exit of the pipe.
    I think something must be wrong in my assumptions since I get different k values for the two situations
     
  2. jcsd
  3. Mar 30, 2016 #2

    SteamKing

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Is there a question here?

    Simply posting a diagram is insufficient. This is Physics Forums, not Psychics Forums.
     
  4. Mar 30, 2016 #3
    I'm sorry for not being clear. I want to find a function for the waterflow out from the tank depending on the height of the tank. I've already measured the flow out from two different heights. I was wondering if I should try to find a mathematical expression for it based on these two values, or simply find more measurements and linearize it.
     
  5. Mar 30, 2016 #4

    haruspex

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    Please post your working. You have two independent linear equations with two unknowns (x, k2), so it would be very strange if there is no consistent solution.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Bernoulli and waterflow
  1. Bernoulli's law? (Replies: 3)

  2. Bernoulli's pressure (Replies: 2)

  3. Bernoullis equation (Replies: 1)

  4. Bernoulli problem (Replies: 9)

Loading...