Effects of cross-sectional elongation on the resistive edge modes
Journal article, 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

Author

Johan Anderson

Chalmers, Department of Electromagnetics, Transport Theory

Hans Nordman

Chalmers, Department of Radio and Space Science

Jan Weiland

Chalmers, Department of Electromagnetics, Transport Theory

Physics of Plasmas

Vol. 8 180-

Subject Categories

Physical Sciences

Fusion, Plasma and Space Physics

Areas of Advance

Energy

Roots

Basic sciences

DOI

10.1063/1.1329150

More information

Created

10/8/2017