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!

Falling stream of water > individual droplets

  1. Mar 29, 2008 #1

    I'm looking at finding a way to determine when a stream of water of a certian diameter coming from a hole at a certian pressure will break apart due to gravity and surface tension into descrete droplets.

    Bernoulli's principle can give me the diameter of the stream at various times but I don't know what exactly governs the breaking apart of the stream into droplets.

    Any help?
  2. jcsd
  3. Mar 30, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Look into "Rayleigh instability."
  4. Mar 31, 2008 #3

    Andy Resnick

    User Avatar
    Science Advisor
    Education Advisor

    This problem (jet dynamics) is very old, and a definitive presentation is in Chandrasekhar's book "hydrodynamic and hydromagnetic stability" (Dover). Surface tension drives the jet breakup.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook