TITLE

Electromagnetic formulation of global gyrokinetic particle simulation in toroidal geometry

AUTHOR(S)
Holod, I.; Zhang, W. L.; Xiao, Y.; Lin, Z.
PUB. DATE
December 2009
SOURCE
Physics of Plasmas;Dec2009, Vol. 16 Issue 12, p122307
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The fluid-kinetic hybrid electron model for global electromagnetic gyrokinetic particle simulations has been formulated in toroidal geometry using magnetic coordinates, providing the capabilities to describe low frequency processes in electromagnetic turbulence with electron dynamics. In the limit of long wavelength and no parallel electric field our equations reduce to the ideal magnetohydrodynamic equations. The formulation has been generalized to include equilibrium flows. The equations for zonal components of electrostatic and vector potentials have been derived, demonstrating the electron screening of the zonal vector potential.
ACCESSION #
47244157

 

Related Articles

  • Numerical simulation of non-Abelian particle-field dynamics. Dumitru, A.; Nara, Y. // European Physical Journal A -- Hadrons & Nuclei;Jul2006, Vol. 29 Issue 1, p65 

    Numerical 1D-3V solutions of the Wong-Yang-Mills equations with anisotropic particle momentum distributions are presented. They confirm the existence of plasma instabilities for weak initial fields and of their saturation at a level where the particle motion is affected, similar to Abelian...

  • Parton energy loss due to synchrotron-like gluon emission. Zakharov, B. G. // JETP Letters;Dec2008, Vol. 88 Issue 8, p475 

    A quasiclassical theory of the synchrotron-like gluon radiation has been developed. The calculations show that the parton energy loss due to the synchrotron gluon emission may be important in the jet quenching phenomenon if the plasma instabilities generate a sufficiently strong chromomagnetic...

  • Role of microscopic plasma instabilities on shock dissipation process. Shimada, N.; Hoshino, M. // AIP Conference Proceedings;6/16/2009, Vol. 1144 Issue 1, p21 

    We discuss dissipation process in the shock transition region based on our recent numerical simulation results. We have performed self-consistent particle-in-cell (PIC) simulation and found that electron kinetics plays an important role in the dissipation process as well as generation process of...

  • Simulation of internal transport barriers by means of the canonical profile transport model. Dnestrovskij, Yu.; Cherkasov, S.; Dnestrovskij, A.; Lysenko, S.; Walsh, M. // Plasma Physics Reports;Jan2006, Vol. 32 Issue 1, p1 

    Models with critical gradients are widely used to describe energy balance in L-mode discharges. The so-called first critical gradient can be found from the canonical temperature profile. Here, it is suggested that discharge regimes with transport barriers can be described based on the idea of...

  • One-dimensional particle-in-cell simulation of a current-free double layer in an expanding plasma. Meige, Albert; Boswell, Rod W.; Charles, Christine; Turner, Miles M. // Physics of Plasmas;May2005, Vol. 12 Issue 5, p052317 

    A one-dimensional particle-in-cell code using Monte Carlo collision techniques (MCC/PIC) for both ions and electrons is used to simulate our earlier experimental results which showed that a current-free electric double layer (DL) can form in a plasma expanding along a diverging magnetic field....

  • M3D-K simulations of sawteeth and energetic particle transport in tokamak plasmas. Wei Shen; Fu, G. Y.; Zheng-Mao Sheng; Breslau, J. A.; Feng Wang // Physics of Plasmas;2014, Vol. 21 Issue 9, p1 

    Nonlinear simulations of sawteeth and related energetic particle transport are carried out using the kinetic/magnetohydrodynamic (MHD) hybrid code M3D-K. MHD simulations show repeated sawtooth cycles for a model tokamak equilibrium. Furthermore, test particle simulations are carried out to study...

  • Note on quantitatively correct simulations of the kinetic beam-plasma instability. Lotov, K. V.; Timofeev, I. V.; Mesyats, E. A.; Snytnikov, A. V.; Vshivkov, V. A. // Physics of Plasmas;2015, Vol. 22 Issue 2, p1 

    A large number of model particles are shown necessary for quantitatively correct simulations of the kinetic beam-plasma instability with the clouds-in-cells method. The required number of particles scales inversely with the expected growth rate, as only a narrow interval of beam velocities is...

  • Self-consistent poloidal electric field and neoclassical angular momentum flux. Wong, S. K.; Chan, V. S. // Physics of Plasmas;Dec2009, Vol. 16 Issue 12, p122507 

    A complete expression is obtained for the poloidal variation of the electrostatic potential in the banana regime for large aspect ratio flux surfaces using the method of matched asymptotic expansions. The result exhibits a finite discontinuity at the innermost point of a flux surface instead of...

  • Three-body collisions in a plasma in a strong laser field. Balakin, A.; Tolmachev, M. // Plasma Physics Reports;Aug2008, Vol. 34 Issue 8, p658 

    Electron-ion collisions in a high-density plasma in strong electromagnetic fields are considered. The applicability condition for the approximate model of pair collisions in strong fields are determined. It is shown that this condition is identical to the condition for the plasma to be...

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