Global particle-in-cell simulations of microturbulence with kinetic electrons

Journal Article · Sat Jul 15 00:00:00 EDT 2006 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2221931· OSTI ID:20860121

Lewandowski, J L. V.; Rewoldt, G; Ethier, S; Lee, W W; Lin, Z ^[1]

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1. Princeton University, Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, New Jersey 08543 (United States)

The effects of nonadiabatic electrons on ion temperature gradient drift instabilities have been studied in global toroidal geometry using the gyrokinetic particle simulation approach. Compared to the nonlinear global simulations based on only the adiabatic response of the electrons, we have found that the cross-field ion heat transport is two to three times larger in the presence of trapped electrons as compared to the purely adiabatic electron case, and that the zonal component of the electrostatic potential has a shorter wavelength. The numerical methods for calculating both the adiabatic and the nonadiabatic responses for the electrons are presented.

• OSTI ID: 20860121
• Journal Information: Physics of Plasmas, Vol. 13, Issue 7; Other Information: DOI: 10.1063/1.2221931; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DRIFT INSTABILITY
ELECTRON TEMPERATURE
GEOMETRY
HEAT TRANSFER
ION TEMPERATURE
NONLINEAR PROBLEMS
PLASMA
PLASMA POTENTIAL
PLASMA SIMULATION
PLASMA WAVES
RADIATION TRANSPORT
TEMPERATURE GRADIENTS
TRAPPED ELECTRONS
TURBULENCE
WAVELENGTHS