Effects of cross-sectional elongation on the resistive edge modes
Artikel i vetenskaplig tidskrift, 2001

Resistive edge modes in a shifted noncircular tokamak geometry are investigated in the electrostatic limit. The reduced Braghinskii equations are used as a model for the electrons and an advanced fluid model for the ions. An eigenvalue problem is derived from these equations which is solved numerically. It is found that the resistive ballooning modes are stabilized by plasma elongation for peaked density profiles. In addition, it is found that the resistive ITG mode may be either stabilized or destabilized by elongation depending on the collision frequency.

Tokamaks

Drift waves

Toroidal Geometry

Författare

Johan Anderson

Chalmers, Institutionen för elektromagnetik, Transportteori

Hans Nordman

Chalmers, Institutionen för radio- och rymdvetenskap

Jan Weiland

Chalmers, Institutionen för elektromagnetik, Transportteori

Physics of Plasmas

Vol. 8 180-

Ämneskategorier

Fysik

Fusion, plasma och rymdfysik

Styrkeområden

Energi

Fundament

Grundläggande vetenskaper

DOI

10.1063/1.1329150