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Line‐tying effects on the Kelvin‐Helmholttz instability
Author(s) -
Miura Akira,
Kan J. R.
Publication year - 1992
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/92gl01448
Subject(s) - instability , kelvin wave , perturbation (astronomy) , tying , physics , ionosphere , geophysics , normal mode , line (geometry) , mechanics , geology , geometry , meteorology , mathematics , acoustics , computer science , quantum mechanics , vibration , operating system
A three‐dimensional linear analysis of the line‐tied Kelvin‐Helmholtz (K‐H) instability is carried out. The line‐tying by the conducting ionospheres has a stabilizing influence on all unstable modes, but the ionospheric stabilization of the instability can be insignificant when the eigenmode of the flow perturbation has nodes at the ionospheric boundaries.