On the Kelvin-Helmholtz Instability in Superfluids
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.
- Publication:
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Soviet Journal of Experimental and Theoretical Physics Letters
- Pub Date:
- April 2002
- DOI:
- 10.1134/1.1490014
- arXiv:
- arXiv:cond-mat/0202445
- Bibcode:
- 2002JETPL..75..418V
- Keywords:
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- Condensed Matter;
- Nonlinear Sciences - Pattern Formation and Solitons;
- Physics - Fluid Dynamics
- E-Print:
- LaTeX file, 13 pages, 1 figure, misprints are corrected