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Title: Localization of linear kinetic Alfvén wave in an inhomogeneous plasma and generation of turbulence

This paper presents a model for the propagation of Kinetic Alfvén waves (KAWs) in inhomogeneous plasma when the inhomogeneity is transverse to the background magnetic field. The semi-analytical technique and numerical simulations have been performed to study the KAW dynamics when plasma inhomogeneity is incorporated in the dynamics. The model equations are solved in order to study the localization of KAW and their magnetic power spectrum which indicates the direct transfer of energy from lower to higher wave numbers. The inhomogeneity scale length plays a very important role in the turbulence generation and its level. The relevance of these investigations to space and laboratory plasmas has also been pointed out.
Authors:
;  [1] ;  [2] ;  [3]
  1. Centre for Energy Studies, Indian Institute of Technology, Delhi-110016 (India)
  2. Department of Physics, West Virginia University, Morgantown, West Virginia 26506-6315 (United States)
  3. Austrian Academy of Sciences, Space Research Institute, Schmiedlstrasse 6, 8042 Graz (Austria)
Publication Date:
OSTI Identifier:
22253138
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPUTERIZED SIMULATION; EQUATIONS; INHOMOGENEOUS PLASMA; LENGTH; MAGNETIC FIELDS; SPACE; SPECTRA; TURBULENCE