Results 251 to 260 of about 2,894,075 (299)
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INTERMITTENCY IN SPACE PLASMA TURBULENCE
2005We present a short overview on theoretical aspects and observational findings about intermittency in solar wind MHD turbulence. This phenomenon, which became a remarkable topic in the past few years, is due to the fact that solar wind fluctuations are neither isotropic nor scale-invariant, two of the fundamental hypotheses at the basis of K41 ...
Bruno, R +5 more
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Scalar model for plasma turbulence
Physical Review E, 1993A shell model is proposed to study the Hasegawa-Mima equation [Phys. Fluids 21, 87 (1978)] describing the electric-potential fluctuaitons in microturbulent plasmas. The simularities with two-dimensional hydrodynamic turbulence are discussed. Both the direct cascade of enstrophy and the reverse cascade of energy are investigated.
Ottinger, Jean-Luc, Carati, Daniele
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Resonant quasiparticles in plasma turbulence
Physical Review E, 2003A general view is proposed on wave propagation in fluids and plasmas where the resonant interaction of monochromatic waves with quasiparticles is considered. A kinetic equation for quasiparticles is used to describe the broadband turbulence interacting with monochromatic waves.
Mendonça, J. T. +2 more
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Simulation of plasma turbulence in the periphery of diverted tokamak by using the GBS code
Physics of Plasmas, 2018We report on the implementation of diverted magnetic equilibria in GBS and on first simulations in this geometry. GBS is a simulation code used to evolve plasma turbulence in the tokamak periphery by solving the drift-reduced Braginskii's equations.
P. Paruta +5 more
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Development of the concepts of plasma turbulence
Uspekhi Fizicheskih Nauk, 1972The review is devoted to exposition of the physical principles on which the current ideas on plasma turbulence are based. A comparison is made of the results obtained in the theory of plasma turbulence and the turbulence of incompressible liquids. The basic physical differences between hydrodynamic and plasma turbulence are pointed out. It is shown how
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Anomalous resistivity of a turbulent plasma
Plasma Physics, 1971The conductivity tensor of a turbulent plasma is computed from the coherent response to an external test wave. The enhanced resistivity arises from wave particle interactions and nonlinear coupling between the test wave and the turbulent spectrum. We have included nonexpandable effects due to scattering of particles by the turbulent fluctuations and ...
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The anisotropic plasma wave in the plasma turbulence
Contributions to Plasma Physics, 2022AbstractIn this paper, the influence of plasma turbulence due to the sheared and body stress flow on the dispersion characteristics of the transverse electromagnetic modes in strongly coupled plasma is analysed. Using kinetic theory and solving the scattering relationship for the Vlasov‐Maxwell system, the influence of plasma turbulence on the growth ...
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Plasma Wave Echo in a Weakly Turbulent Plasma
The Physics of Fluids, 1970The effects of turbulent fluctuations on the plasma wave echo have been investigated for a one-dimensional weakly turbulent electron plasma. It has been found that the interaction between electrons and fluctuations gives rise to (i) damping of the plasma echo, (ii) shift of the maximum position of plasma echo, and (iii) suppression of the peak ...
Ichikawa, Y. H., Sanuki, H.
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Theory of Strong Turbulence in Plasmas
The Physics of Fluids, 1970A theory of fluctuations which may be applicable to a plasma in any of the three states, namely, the quiescent, weakly turbulent, and strongly turbulent states, is obtained from an exact solution of the second equation of the Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy for the stationary values of the pair correlation function.
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Physical Review Letters, 1983
Model mode-coupling equations for the resistive drift-wave instability are derived and numerically solved to study the properties of turbulence near a plasma edge. The wavenumber spectrum of the turbulence is found to exhibit an inverse cascade to form an isotropic, two-dimensional Kolmogorov spectrum, ${k}^{\ensuremath{-}3}$, in the large-wave-number ...
Akira Hasegawa, Masahiro Wakatani
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Model mode-coupling equations for the resistive drift-wave instability are derived and numerically solved to study the properties of turbulence near a plasma edge. The wavenumber spectrum of the turbulence is found to exhibit an inverse cascade to form an isotropic, two-dimensional Kolmogorov spectrum, ${k}^{\ensuremath{-}3}$, in the large-wave-number ...
Akira Hasegawa, Masahiro Wakatani
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