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Plateau–Rayleigh instability
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Plateau–Rayleigh instability : ウィキペディア英語版
Plateau–Rayleigh instability

The Plateau–Rayleigh instability, often just called the Rayleigh instability, explains why and how a falling stream of fluid breaks up into smaller packets with the same volume but less surface area. It is related to the Rayleigh–Taylor instability and is part of a greater branch of fluid dynamics concerned with fluid thread breakup. This fluid instability is exploited in the design of a particular type of ink jet technology whereby a jet of liquid is perturbed into a steady stream of droplets.
The driving force of the Plateau–Rayleigh instability is that liquids, by virtue of their surface tensions, tend to minimize their surface area. A considerable amount of work has been done recently on the final pinching profile by attacking it with self similar solutions.〔〔
==History==

The Plateau–Rayleigh instability is named for Joseph Plateau and Lord Rayleigh. In 1873, Plateau found experimentally that a vertically falling stream of water will break up into drops if its wavelength is greater than about 3.13 to 3.18 times its diameter.〔(Retardation of Plateau–Rayleigh Instability: A Distinguishing Characteristic Among Perfectly Wetting Fluids ) by John McCuan. Retrieved 1/19/2007.〕 Later, Rayleigh showed theoretically that a vertically falling column of non-viscous liquid with a circular cross-section should break up into drops if its wavelength exceeded its circumference.〔(See page 23 of this pdf ) Retrieved 1/19/2007.〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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