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Gravitational oscillations of a liquid column

Elise Lorenceau·David Quere·Jean-Yves Ollitrault·Christophe Clanet
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Abstract

We report gravity oscillations of a liquid column partially immersed in a bath of liquid. We stress in particular 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 description of a second-order phenomenon, namely the eruption of a jet at the beginning of the rise.

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Elise Lorenceau, David Quere, Jean-Yves Ollitrault, Christophe Clanet. 2001-06-28. Gravitational oscillations of a liquid column. https://doi.org/10.1063/1.1476670

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