Open AccessDrift waves in stellarator geometry
Author(s) -
Mikael Persson,
M Nadeem,
J. L. V. Lewandowski,
Henry Gardner
Publication year - 2000
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/751423
Subject(s) - stellarator , ballooning , physics , plasma , formalism (music) , geometry , spectral line , wave vector , computational physics , mathematics , optics , tokamak , nuclear physics , quantum mechanics , art , musical , visual arts
Drift waves are investigated in a real three-dimensional stellarator geometry. A linear system, based on the cold ion fluid model and a ballooning mode formalism, is solved numerically in the geometry of the stellarator H1-NF. The spectra of stable and unstable modes, as well as localization, are discussed. The dependence of the spectrum of the unstable modes on the wavevector, plasma density variation, and the location in the plasma is presented
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