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Author Mahajan, S. M. ♦ Rogava, A. D.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ STABILITY ♦ ASTROPHYSICS ♦ FLOW MODELS ♦ SHEAR ♦ INSTABILITY ♦ INTERNAL WAVES ♦ HYDRODYNAMICS
Abstract We develop a method for investigating waves and instabilities in astrophysical shear flows with complex kinematics. Using new tools, we find an unexpected richness in the spectrum of compressible fluctuations sustained by such a flow. The principal characteristic of the revealed exotic phenomena is their {ital asymptotic persistence} in the absence of viscosity. {open_quotes}Echoing{close_quotes} as well as strongly unstable (including parametrically driven) solutions are identified. Examples of astrophysical shear flows with nontrivial velocity structure where these method and results can be applied are also discussed. {copyright} {ital {copyright} 1999.} {ital The American Astronomical Society}
ISSN 0004637X
Educational Use Research
Learning Resource Type Article
Publisher Date 1999-06-01
Publisher Place United States
Journal Astrophysical Journal
Volume Number 518
Issue Number 2


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