APPLICABILITY OF THE RAYLEIGH APPROXIMATI ON OF BOTTOM FRICTION TO MODELING SHEAR-FLOW INSTABILITY

Authors
DANILOV SD KOCHINA VG
Citation
Sd. Danilov et Vg. Kochina, APPLICABILITY OF THE RAYLEIGH APPROXIMATI ON OF BOTTOM FRICTION TO MODELING SHEAR-FLOW INSTABILITY, Izvestia Akademii nauk. Rossijskaa akademia nauk. Fizika atmosfery iokeana, 33(6), 1997, pp. 845-849
Citations number
4
Categorie Soggetti
Metereology & Atmospheric Sciences",Oceanografhy
Journal title
Izvestia Akademii nauk. Rossijskaa akademia nauk. Fizika atmosfery iokeana → ACNP
ISSN journal
10236317
Volume
33
Issue
6
Year of publication
1997
Pages
845 - 849
Database
ISI
SICI code
1023-6317(1997)33:6<845:AOTRAO>2.0.ZU;2-H
Abstract
The behavior of a quasi-two-dimensional shear flow is studied numerica lly for large supercriticalities. Bottom influence is considered in th e approximation of friction linear in velocity (Rayleigh friction). A comparison between results obtained and available experimental data sh ows that this approximation is correct for small and moderate supercri ticalities. For large supercriticalities, disagreement with the experi mental data is found, which appears to be due to the manifestation of three-dimensional effects.