STABILITY OF QUASI-GEOSTROPHIC FLOW IN A PERIODIC CHANNEL

Authors
WOLANSKY G GHIL M
Citation
G. Wolansky et M. Ghil, STABILITY OF QUASI-GEOSTROPHIC FLOW IN A PERIODIC CHANNEL, Physics letters. A, 202(1), 1995, pp. 111-116
Citations number
14
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
202
Issue
1
Year of publication
1995
Pages
111 - 116
Database
ISI
SICI code
0375-9601(1995)202:1<111:SOQFIA>2.0.ZU;2-V
Abstract
We extend the linearized version of the Amol'd energy-Casimir (EC) met hod for the stability of hydrodynamic hows. This extension permits us to treat cases in which the critical point of the EC functional is a s addle, rather than an extremum. The basic idea is illustrated by appli cation to channel flow with a free surface, in the presence of rotatio n and bottom topography.