Premium
On the Temporal and the Spatial Kelvin‐Helmholtz Instability of a Hypersonic Jet Confined by a Longitudinal Magnetic Field
Author(s) -
Yue Z. Y.,
Winnewisser G.
Publication year - 1992
Publication title -
studies in applied mathematics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.164
H-Index - 46
eISSN - 1467-9590
pISSN - 0022-2526
DOI - 10.1002/sapm1992874325
Subject(s) - instability , jet (fluid) , physics , hypersonic speed , magnetic field , mechanics , field (mathematics) , computational physics , classical mechanics , mathematics , quantum mechanics , pure mathematics
Both the temporal and the spatial Kelvin‐Helmholtz instability of a hypersonic jet confined by a longitudinal magnetic field are investigated. The reflection modes are calculated for a set of typical jet parameters. Analytical treatments for both temporal and spatial resonant modes, i.e., the most important reflection modes with the local maximum growth rates, are given. Various properties of the resonant modes are plotted against the jet temperature. The growth rates of the temporal and the spatial resonant modes are connected by the group velocity. The astrophysical implications of the present investigation are discussed.