Resonant Triad Instability in Stratified Fluids

Autor: Joubaud, Sylvain, Munroe, James, Odier, Philippe, Dauxois, Thierry
Rok vydání: 2012
Předmět:
Zdroj: Physics of Fluids 24, 041703 (2012)
Druh dokumentu: Working Paper
DOI: 10.1063/1.4706183
Popis: Internal gravity waves contribute to fluid mixing and energy transport, not only in oceans but also in the atmosphere and in astrophysical bodies. We provide here the first experimental measurement of the growth rate of a resonant triad instability (also called parametric subharmonic instability) transferring energy to smaller scales where it is dissipated. We make careful and quantitative comparisons with theoretical predictions for propagating vertical modes in laboratory experiments.
Databáze: arXiv