TITLE

The nonlinear evolution of tearing mode with electron viscosity in electron magnetohydrodynamics

AUTHOR(S)
Huishan Cai; Xiankang Dou; Ding Li
PUB. DATE
March 2010
SOURCE
Physics of Plasmas;Mar2010, Vol. 17 Issue 3, p032111
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The general time evolution of tearing mode due to electron viscosity μe from linear to nonlinear phase in the framework of electron magnetohydrodynamics (EMHD) is derived by quasilinear theory. Tearing mode grows exponentially in the linear phase and slows to an algebraic growth behavior Ψ1∝(μet)2/3 (Ψ1 is the magnetic flux) in the nonlinear phase. These two phases are separated by a transition during which the growth behavior is much different from that in the linear and nonlinear phases. It behaves as Ψ1∝μe5/8t1/2 approximately.
ACCESSION #
48912120

 

Related Articles

  • Kinetic effects on Alfvén wave nonlinearity. II. The modified nonlinear wave equation. Spangler, Steven R. // Physics of Fluids B: Plasma Physics;Feb90, Vol. 2 Issue 2, p407 

    The study of kinetic effects on Alfvén wave nonlinearity is continued. Previously obtained expressions for the perturbed (by an Alfvén wave) ion and electron distribution functions are used to obtain a nonlinear wave equation for parallel-propagating, circularly polarized waves. The...

  • Linear and nonlinear dynamics of Alfven eigenmodes in tokamaks. Vlad, G.; Kar, C.; Zonca, F.; Romanelli, F. // Physics of Plasmas;Feb95, Vol. 2 Issue 2, p418 

    Investigates linear and nonlinear dynamics of various toroidicity induced global Alfven eigenmodes in tokamaks by means of an initial value numerical code. Code's use of the reduced magnetohydrodynamic (MHD) model; Nonlinear saturation of the Toroidal Alfven Eigenmodes and of the Resistive...

  • Nonlinear interaction of fast particles with Alfven waves in toroidal plasmas. Candy, J.; Borba, D.; Berk, H.L.; Huysmans, G.T.A.; Kerner, W. // Physics of Plasmas;Jul97, Vol. 4 Issue 7, p2597 

    Develops a numerical algorithm to study the nonlinear, resonant interaction of fast particles with Alfven waves in tokamak geometry. Wave-particle trapping nonlinearity; Mode-saturation before wave-wave nonlinearities; Spectrum of linear modes.

  • Nonlinear resonant absorption of fast magnetoacoustic waves in strongly anisotropic and dispersive plasmas. Clack, Christopher T. M.; Ballai, Istvan // Physics of Plasmas;Apr2009, Vol. 16 Issue 4, p042305 

    The nonlinear theory of driven magnetohydrodynamics (MHD) waves in strongly anisotropic and dispersive plasmas, developed for slow resonance by Clack and Ballai [Phys. Plasmas 15, 2310 (2008)] and Alfvén resonance by Clack et al. [Astron. Astrophys. 494, 317 (2009)], is used to study the...

  • Wall forces produced during ITER disruptions. Strauss, H. R.; Paccagnella, R.; Breslau, J. // Physics of Plasmas;Aug2010, Vol. 17 Issue 8, p082505 

    Nonlinear simulations with the M3D code [W. Park et al., Phys. Plasmas 6, 1796 (1999)] are performed of disruptions produced by large scale magnetohydrodynamic instabilities. The toroidally asymmetric wall forces produced during a disruption are calculated in an ITER [T. Hender et al., Nucl....

  • Kinetic theory of hydromagnetic turbulence. II. Susceptibilities. Yoon, Peter H.; Ta-Ming Fang // Physics of Plasmas;Oct2007, Vol. 14 Issue 10, p102303 

    The present paper augments the previous paper [P. H. Yoon, Phys. Plasmas 14, 102302 (2007)] in which a formal kinetic theory of hydromagnetic turbulence propagating back-and-forth along the ambient magnetic field was developed. In the present paper, linear wave properties are discussed in...

  • Nonlinear magnetohydrodynamics in the Dag confinement configuration. Strauss, H.R. // Physics of Plasmas;Mar2004, Vol. 11 Issue 3, p1236 

    The Dag magnetic fusion confinement configuration is a spheromak-like toroidal device. It consists of central vertical current channel, and an outer toroidal chamber with a toroidal current. It has a special magnetic topology. Whether this has consequences for plasma confinement is a motive for...

  • Nonlinear three-dimensional verification of the SPECYL and PIXIE3D magnetohydrodynamics codes for fusion plasmas. Bonfiglio, D.; Chacón, L.; Cappello, S. // Physics of Plasmas;Aug2010, Vol. 17 Issue 8, p082501 

    With the increasing impact of scientific discovery via advanced computation, there is presently a strong emphasis on ensuring the mathematical correctness of computational simulation tools. Such endeavor, termed verification, is now at the center of most serious code development efforts. In this...

  • Dust acoustic solitary waves in a charge varying relativistic dusty plasma. Tribeche, Mouloud; Boukhalfa, Soufiane; Zerguini, Taha Houssine // Physics of Plasmas;Jun2010, Vol. 17 Issue 6, p064501 

    The problem of nonlinear variable charge dust acoustic solitary waves in dusty plasma with relativistic electrons and ions is addressed. The appropriate relativistic charging currents, derived within the theoretical framework of the orbit-limited motion theory, are used. Our results show that in...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics