Absolute instability of a liquid jet in a coflowing stream.

Absolute instability of a liquid jet in a coflowing stream. Research Abstract Details 

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Absolute instability of a liquid jet in a coflowing stream. Abstract Text:

Andrew S Utada,Alberto Fernandez-Nieves,Jose M Gordillo,David A Weitz,

Cylindrical liquid jets are inherently unstable and eventually break into drops due to the Rayleigh-Plateau instability, characterized by the growth of disturbances that are either convective or absolute in nature. Convective instabilities grow in amplitude as they are swept along by the flow, while absolute instabilities are disturbances that grow at a fixed spatial location. Liquid jets are nearly always convectively unstable. Here we show that two-phase jets can breakup due to an absolute instability that depends on the capillary number of the outer liquid, provided the Weber number of the inner liquid is >O(1). We verify our experimental observations with a linear stability analysis.

Absolute instability of a liquid jet in a coflowing stream. Publishing Authors By Initials

AS Utada,A Fernandez-Nieves,JM Gordillo,DA Weitz,

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Absolute instability of a liquid jet in a coflowing stream. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Physical review letters

VOLUME: 100

Page Numbers: 014502

Journal Abbreviation: Phys. Rev. Lett.

ISSN: 0031-9007

DAY: 11

MONTH: 01

YEAR: 2008

Absolute instability of a liquid jet in a coflowing stream. Information

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LANGUAGE: eng

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AFFILIATION: School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.

Country: United States

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MEDLINETA: Phys Rev Lett

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