Drift wave simulations in stellarator geometry

Journal Article · Tue Aug 01 04:00:00 EDT 2000 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.874200· OSTI ID:20217085

Lewandowski, J L. V. ^[1]

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

A model, based on gyro-kinetic ions and fluid electrons, to study drift waves in low-{beta} [{beta}=(kinetic pressure)/(magnetic pressure)] stellarator plasmas is presented. The model equations are written in straight-field-line coordinates and are valid for arbitrary, fully three-dimensional configurations with closed, nested magnetic surfaces. An implicit method, coupled with a subcycling technique for the electrons, is used to solve the time-dependent, along-the-field-line equations. Numerical calculations are carried out for a three-field-period toroidal heliac. The geometrical effects that enter the model equations are calculated and displayed in physical space using advanced visualization techniques. (c) 2000 American Institute of Physics.

• OSTI ID: 20217085
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 7; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DRIFT INSTABILITY
MATHEMATICAL MODELS
PLASMA PRESSURE
PLASMA WAVES
SIMULATION
STELLARATORS
THEORETICAL DATA
THREE-DIMENSIONAL CALCULATIONS