Taylor instability of a non-uniform free-surface flow

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The evolution of a small disturbance in a three-dimensional steady free-surface flow is investigated. The radius of curvature of the free surface and the length scale characterizing the non-uniformity of the velocity are assumed to be of the same order of magnitude. It is shown that the local rate of growth of the amplitude of the disturbance depends on both the normal pressure gradient (as in the case of Taylor instability) and the rate of strain on the free surface. Application of the theory to rising gaseous bubbles and gravity water waves is discussed.

Original languageEnglish
Pages (from-to)113-123
Number of pages11
JournalJournal of Fluid Mechanics
Issue number1
StatePublished - 14 Jan 1975
Externally publishedYes


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