Gravitational oscillations of a liquid column
Fluid Dynamics
2009-11-07 v1 Soft Condensed Matter
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.
Keywords
Cite
@article{arxiv.physics/0106096,
title = {Gravitational oscillations of a liquid column},
author = {Elise Lorenceau and David Quere and Jean-Yves Ollitrault and Christophe Clanet},
journal= {arXiv preprint arXiv:physics/0106096},
year = {2009}
}
Comments
22 pages, pdf. Submitted to Physics of Fluids