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摘要
Thin jets of viscous fluid like honey falling from capillary nozzles can attain lengths exceeding 10 m before breaking up into droplets via the Rayleigh-Plateau (surface tension) instability. Using a combination of laboratory experiments and WKB analysis of the growth of shape perturbations on a jet being stretched by gravity, we determine how the jet%26apos;s intact length l(b) depends on the flow rate Q, the viscosity eta, and the surface tension coefficient gamma. In the asymptotic limit of a high-viscosity jet, l(b) similar to (gQ(2)eta(4)/gamma(4))(1/3), where g is the gravitational acceleration. The agreement between theory and experiment is good, except for very long jets. DOI: 10.1103/PhysRevLett.110.144501
- 出版日期2013-4-1
