ECM - École Centrale de Marseille : UMR7342 (Pôle de l'étoile - Technopole de Château-Gombert - 38 rue Frédéric Joliot-Curie - 13013 Marseille - France)
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.
https://hal-enpc.archives-ouvertes.fr/hal-01123705
Contributeur : Elise Lorenceau <>
Soumis le : mardi 3 octobre 2017 - 10:32:27 Dernière modification le : jeudi 17 décembre 2020 - 11:42:05
Élise Lorenceau, David Quéré, Jean-Yves Ollitrault, Christophe Clanet. Gravitational oscillations of a liquid column in a pipe. Physics of Fluids, American Institute of Physics, 2002, 14 (6), pp.1985-1992. ⟨10.1063/1.1476670⟩. ⟨hal-01123705⟩