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!

Fluid Dynamics

  1. May 27, 2009 #1
    Could someone help me with this. In pipe flow show that the average velocity is half of the maximum velocity. I have it written in my notes that this is true, but not how to derive it.
     
  2. jcsd
  3. May 27, 2009 #2

    Hao

    User Avatar

    You can get the answer if you solve Navier-Stokes equation in cylindrical coordinates with the following assumptions:

    1) Flow is incompressible.
    2) Pipe pressure decreases linearly.
    3) Flow rate is finite.
    4) Flow rate is static, hence, the fluid only flows in one particular direction (you can guess which one based on the symmetry of a cylindrical pipe).
    5) Flow rate at the sides of the pipe = 0.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Fluid Dynamics
  1. Fluid Dynamics (Replies: 1)

  2. Fluid Dynamics (Replies: 1)

  3. Fluid dynamics (Replies: 2)

Loading...