Drift waves in general toroidal geometry

Lewandowski, J.L.V.

Princeton University. Plasma Physics Laboratory.

关键词: 70 Plasma Physics And Fusion;    Plasma Drift;    Stellarators;    Plasma Simulation;    Magnetic Surfaces;   

DOI  :  10.2172/751026
RP-ID  :  PPPL--3433
RP-ID  :  AC02-76CH03073
RP-ID  :  751026

美国|英语

来源: UNT Digital Library

【 摘 要 】

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 3-field-period toroidal heliac. The geometrical effects that enter the model equations are calculated and displayed in physical space using advanced visualization techniques.