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

Physics of Plasmas

1070-664X (ISSN) 1089-7674 (eISSN)

Vol. 16 2 022110- 022110

Ämneskategorier

Fusion, plasma och rymdfysik

DOI

10.1063/1.3079068