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research article
Longitudinal and Transverse Instability of Ion Acoustic Waves
Ion acoustic waves are found to be susceptible to at least two distinct decay processes. Which process dominates depends on the parameters. In the cases examined, the decay channel where daughter modes propagate parallel to the mother mode is found to dominate at larger amplitudes, while the decay channel where the daughter modes propagate at angles to the mother mode dominates at smaller amplitudes. Both decay processes may occur simultaneously and with onset thresholds below those suggested by fluid theory, resulting in the eventual multidimensional collapse of the mother mode to a turbulent state.
Type
research article
Web of Science ID
WOS:000406912900008
Authors
Chapman, T.
•
Berger, R. L.
•
Cohen, B. I.
•
Banks, J. W.
•
Brunner, S.
Publication date
2017
Publisher
Published in
Volume
119
Issue
5
Article Number
055002
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
October 9, 2017
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