1. Limited time only! Sign up for a free 30min personal 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 Equation Problem

Tags:
  1. Feb 11, 2015 #1

    RGG

    User Avatar

    Hey everyone ! I'm new here and found that this forum was very useful. Would really appreciate it if you could help me out with this problem ! Have been scratching my head for hours now :(

    Question:
    upload_2015-2-11_22-11-19.png
    upload_2015-2-11_22-12-20.png
    Thank you very very much once again !
     

    Attached Files:

  2. jcsd
  3. Feb 11, 2015 #2
    The (a) part can be solved by conserving volume of the liquid . (Think about rate of change of volume !!)
     
  4. Feb 11, 2015 #3

    RGG

    User Avatar

    heya, A was okay actually. The main problems I have are with B onwards !

    Thank you for your viewership :)
     
  5. Feb 12, 2015 #4

    RGG

    User Avatar

    Okay, so I was told that my homework request was an unreasonable one and hence, I have looked through the forum rules. I shall abide by them ! So sorry for being ignorant.

    1. The problem statement, all variables and given/known data
    See Above

    2. Relevant equations
    Bernoulli Equation: V2/2g + p/dg + z = constant
    V = velocity of particles flowing through that point of the streamline
    g = acceleration due to gravity
    p = pressure at that point of the streamline
    d = density
    z = elevation at that point of the streamline

    3. The attempt at a solution

    (a) V = H0B = bh + (B-b)H
    H=(BH0-bh)/(B-b)

    (b) By conservation of volume,
    Discharge, Q = W.Ab = Ub.Af
    Q = W.b = Ub.h

    Therefore, Ub = bW/h

    (c) Since gap-averaged flow from x=0 to x=b is a well-behaved flow, dU(x)/dx = 0

    (d)
    At point x=b: Ub/2g + dg(H-h)/dg + h = constant

    From here, I'm really not too sure how to proceed.

    Any help would be greatly appreciated ! Thank you !
     
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 Equation Problem
  1. Bernoulli Problem (Replies: 1)

Loading...