On Kelvin-Helmholtz instability in superfluids
Condensed Matter
2009-11-07 v4 Pattern Formation and Solitons
Fluid Dynamics
Abstract
The Kelvin-Helmholtz instability in superfluids is discussed, based on the first experimental observation of such instability at the interface between superfluid 3He-A and superfluid 3He-B (cond-mat/0111343). We discuss why (i) the Kelvin-Helmholtz criterion, (ii) the Landau critical velocity for nucleation of ripplons, and (iii) the free energy consideration, all give different values for the instability treshold.
Cite
@article{arxiv.cond-mat/0202445,
title = {On Kelvin-Helmholtz instability in superfluids},
author = {G. E. Volovik},
journal= {arXiv preprint arXiv:cond-mat/0202445},
year = {2009}
}
Comments
LaTeX file, 13 pages, 1 figure, misprints are corrected