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Stability criteria of Rayleigh ‐ Taylor modes in magnetized plasmas
Author(s) -
Al–Khateeb A.M.,
Laham N.M.
Publication year - 2003
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.200310003
Subject(s) - dispersion relation , rayleigh–taylor instability , plasma , physics , magnetic field , instability , dispersion (optics) , boundary value problem , rayleigh scattering , excited state , quantum electrodynamics , mode (computer interface) , field (mathematics) , boundary (topology) , mechanics , stability (learning theory) , condensed matter physics , atomic physics , quantum mechanics , mathematical analysis , mathematics , pure mathematics , computer science , operating system , machine learning
The Rayleigh ‐ Taylor (RT) instability is investigated analytically in an inhomogeneous plasma in an external magnetic field. For the case of two distinct fluid layers separated by a sharp boundary and for a fluid of a continuously varying density, RT dispersion relations have been obtained and analyzed. Stability criteria of the excited modes are disscussed with respect to the mode propagation relative to the applied magnetic field. The magnetic field is found to act as a stabilizer up to a threshold value that can be determined from the dispersion relation.