Strongly nonlinear evolution of low-frequency wave packets in a dispersive plasma
Journal Article
·
· Physics of Fluids B; (United States)
- Department of Astronomy, University of Maryland, College Park, Maryland 20742 (United States)
The evolution of strongly nonlinear, strongly modulated wave packets is investigated in a dispersive plasma using a hybrid numerical code. These wave packets have amplitudes exceeding the strength of the external magnetic field, along which they propagate. Alfven (left helicity) wave packets show strong steepening for [beta][lt]1, while fast (right helicity) wave packets hardly steepen for any [beta]. Substantial regions of opposite helicity form on the leading side of steepened Alfven wave packets. This behavior differs qualitatively from that exhibited by the solutions to the derivative nonlinear Schroedinger (DNLS) equation.
- OSTI ID:
- 6485198
- Journal Information:
- Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:7; ISSN 0899-8221; ISSN PFBPEI
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nonlinear wave packet evolution in a dispersive plasma: Application to rotational discontinuities
Comparison of weakly and strongly nonlinear wave evolution in a dispersive plasma
The evolution of strongly modulated, low-frequency, moderate-amplitude wave packets in a dispersive plasma
Thesis/Dissertation
·
Tue Dec 31 23:00:00 EST 1991
·
OSTI ID:7041617
Comparison of weakly and strongly nonlinear wave evolution in a dispersive plasma
Journal Article
·
Thu Oct 01 00:00:00 EDT 1992
· Geophysical Research Letters (American Geophysical Union); (United States)
·
OSTI ID:6994035
The evolution of strongly modulated, low-frequency, moderate-amplitude wave packets in a dispersive plasma
Journal Article
·
Thu Dec 31 23:00:00 EST 1992
· Physics of Fluids B; (United States)
·
OSTI ID:6941172