Hard transition to chaotic dynamics in Alfven wave fronts

Sanmartín Losada, Juan Ramón; López-Rebollal, Óscar; Río, E. del y Elaskar, Sergio (2004). Hard transition to chaotic dynamics in Alfven wave fronts. "Physics of Plasma", v. 11 (n. 5); pp. 2026-2035. ISSN 1070-664X.

Descripción

Título: Hard transition to chaotic dynamics in Alfven wave fronts
Autor/es:
  • Sanmartín Losada, Juan Ramón
  • López-Rebollal, Óscar
  • Río, E. del
  • Elaskar, Sergio
Tipo de Documento: Artículo
Título de Revista/Publicación: Physics of Plasma
Fecha: 2004
Volumen: 11
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The derivative nonlinear Schrodinger DNLS equation, describing propagation of circularly polarized Alfven waves of finite amplitude in a cold plasma, is truncated to explore the coherent, weakly nonlinear, cubic coupling of three waves near resonance, one wave being linearly unstable and the other waves damped. In a reduced three-wave model equal dampings of daughter waves, three-dimensional flow for two wave amplitudes and one relative phase, no matter how small the growth rate of the unstable wave there exists a parametric domain with the flow exhibiting chaotic relaxation oscillations that are absent for zero growth rate. This hard transition in phase-space behavior occurs for left-hand LH polarized waves, paralleling the known fact that only LH time-harmonic solutions of the DNLS equation are modulationally unstable, with damping less than about unstable wave frequency 2/4 x ion cyclotron frequency. The structural stability of the transition was explored by going into a fully 3-wave model different dampings of daughter waves,four-dimensional flow; both models differ in significant phase-space features but keep common features essential for the transition.

Más información

ID de Registro: 21534
Identificador DC: http://oa.upm.es/21534/
Identificador OAI: oai:oa.upm.es:21534
Depositado por: Biblioteca ETSI Aeronauticos
Depositado el: 20 Nov 2013 12:17
Ultima Modificación: 21 Abr 2016 12:10
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