Magnetohydrodynamics

Nuclear physics

Archaeology

Tearing

Plasma

Telecommunications

Computer science

Atmospheric-pressure plasma

Current (fluid)

Thermodynamics

Physics

Enhanced Data Rates for GSM Evolution

Condensed matter physics

Programming language

BETA (programming language)

Separatrix

Tokamak

Mechanics

Pressure gradient

Pedestal

History

The Physics of Fluids

The roles of a magnetic separatrix and of a steep-edge pressure gradient on finite beta external kink and tearing modes in tokamaks are examined by using a newly developed initial value code. For fixed profiles of current density and pressure, the separatrix is found to have a weak effect on the linear characteristics of the global mode. The presence of a steep pressure gradient at the plasma edge reduces the overall growth rate in a similar fashion for both cases with and without the separatrix.

Effects of magnetic separatrix and pressure pedestal on finite beta external kink–tearing modes