Results 181 to 190 of about 17,378 (222)

Instability of MHD Motion and Astrophysical MHD Turbulence

2012
Let us define the stable states as such medium motion or rest states, in which small random perturbations of macroscopic parameters do not increase, while they can oscillate with some damping rate and so eventually dissipate. In astrophysics, however, there are numerous examples of the states, which are not stable.
Gregory D. Fleishman, Igor N. Toptygin
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Theory of MHD waves

Plasma Physics and Controlled Fusion, 1986
Reviews recent developments in the theory of MHD waves in connection with radio-frequency heating in the Alfven wave and ion cyclotron ranges of frequencies (AWRF, ICRF). The account focuses on the discussion of full wave solutions and the oscillation spectra in bounded, generally inhomogeneous, plasmas. Original results are presented concerning forced
Appert, K, Collins, GA, Hellsten, T, Vaclavik, J, Villard, L   +4 more
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Global and Kinetic MHD Simulation by the Gpic-MHD Code

Plasma Science and Technology, 2011
In order to implement large-scale and high-beta tokamak simulation, a new algorithm of the electromagnetic gyrokinetic PIC (particle-in-cell) code was proposed and installed on the Gpic-MHD code [Gyrokinetic PIC code for magnetohydrodynamic (MHD) simulation].
Hiroshi Naitou, Yusuke Yamada, Kenji Kajiwara, Wei-li Lee, Shinji Tokuda, Masatoshi Yagi   +5 more
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Introduction to MHD Instabilities

Fusion Science and Technology, 1998
In this paper we will discuss the theoretical framework of ideal MHD stability. We first show that the Alfven wave is of central importance for the understanding of macroscopic plasma dynamics and, hence, of MHD stability. Then we introduce the elements of spectral theory needed for our study, and next we apply these methods to inhomogeneous plasmas in
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MHD and Micro-MHD Effects in Electrochemical Systems

1999
Using a new type of electrode, MHDE, copper electrodeposition from acidic copper sulfate solution was examined.
Ryoichi Aogaki, Atsushi Tadano, Kenji Shinohara   +2 more
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MHD spectroscopy

Plasma Physics and Controlled Fusion, 2002
Experiments are conducted on the JET tokamak to demonstrate the diagnostic potential of Magneto-Hydro-Dynamics (MHD) spectroscopy, for the plasma bulk and its suprathennal components, using Alfven eigenmodes (AEs) excited by external antennas and by energetic particles.
A Fasoli, D Testa, S Sharapov, H L Berk, B Breizman, A Gondhalekar, R F Heeter, M Mantsinen, contributors to the EFDA-JET Workprogramme   +8 more
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Modelling of MHD Turbulence

2007
info:eu-repo/semantics ...
Knaepen, Bernard, Debliquy, Olivier, Carati, Daniele   +2 more
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Evolutionarity of MHD Discontinuities

1994
Of concern to us is the issue of the stability of MHD discontinuities with respect to their decomposition into more than one discontinuity. To answer this question small perturbations must be imposed on the discontinuity surface. If they do not instantaneously lead to large changes of the discontinuity, then the discontinuity is termed evolutionary.
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Ideal MHD

2014
Comprehensive, self-contained, and clearly written, this successor to Ideal Magnetohydrodynamics (1987) describes the macroscopic equilibrium and stability of high temperature plasmas - the basic fuel for the development of fusion power. Now fully updated, this book discusses the underlying physical assumptions for three basic MHD models: ideal ...
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The MHD model

2004
The ideal MHD equations The dynamics of magnetically confined plasmas, as exploited in laboratory nuclear fusion research and observed in astrophysical systems, is essentially of a macroscopic nature so that it can be studied in the fluid (MHD) model introduced in Chapter 2.
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