Mechanical analogy of the nonlinear dynamics of a driven unstable mode near marginal stability
Artikel i vetenskaplig tidskrift, 2009
The universal integrodifferential model equation derived by Berk [Phys. Rev. Lett. 76, 1256 (1996)] for studying the nonlinear evolution of unstable modes driven by kinetic wave particle resonances near the instability threshold is reduced to a differential equation and next as a further simplification to a nonlinear oscillator equation. This mechanical analogy properly reproduces most of the essential physics of the system and allows an understanding of the qualitative features of the theory of Berk.
integro-differential equations
plasma oscillations
plasma nonlinear waves
plasma instability
Författare
J. Zalesny
Instytut Problemow Jadrowyc
S. Marczynski
West Pomeranian University of Technology
Mietek Lisak
Chalmers, Institutionen för radio- och rymdvetenskap, Icke-linjär elektrodynamik
Dan Anderson
Chalmers, Institutionen för radio- och rymdvetenskap, Icke-linjär elektrodynamik
A. Galkowski
Instytut Problemow Jadrowyc
P. Berczynski
West Pomeranian University of Technology
S. Berczynski
West Pomeranian University of Technology
R. Rogowski
West Pomeranian University of Technology
Publicerad i
Physics of Plasmas
1070-664X (ISSN) 1089-7674 (eISSN)
Vol. 16 Nummer/häfte 2 s. 022110- art. nr 022110Kategorisering
Ämneskategorier (SSIF 2011)
Fusion, plasma och rymdfysik
Identifikatorer
DOI
10.1063/1.3079068