Falling stream of water > individual droplets

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Hi,

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?
 

Answers and Replies

Mapes
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Look into "Rayleigh instability."
 
Andy Resnick
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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.
 

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