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Journal Articles Physics of Fluids Year : 2002

Gravitational oscillations of a liquid column in a pipe

Abstract

We report gravity oscillations of a liquid column partially immersed in a bath of liquid. We stress some peculiarities of this system, namely i the fact that the mass of this oscillator constantly changes with time; ii the singular character of the beginning of the rise, for which the mass of the oscillator is zero; iii the sources of dissipation in this system, which is found to be dominated at low viscosity by the entrance or exit effects, leading to a long-range damping of the oscillations. We conclude with some qualitative descriptions of a second-order phenomenon, which is the eruption of a jet at the beginning of the rise.
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Dates and versions

hal-01123705 , version 1 (03-10-2017)

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Élise Lorenceau, David Quéré, Jean-Yves Ollitrault, Christophe Clanet. Gravitational oscillations of a liquid column in a pipe. Physics of Fluids, 2002, 14 (6), pp.1985-1992. ⟨10.1063/1.1476670⟩. ⟨hal-01123705⟩
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