Numerical study of resistive magnetohydrodynamic modes in high-temperature plasma of general toroidal geometry

Journal Article · Mon May 01 04:00:00 EDT 1989 · Phys Fluids B; (United States)

DOI:https://doi.org/10.1063/1.859024· OSTI ID:6447083

Kim, J; Choi, D

The linearized resistive magnetohydrodynamic (MHD) boundary layer equations in general toroidal geometry are numerically solved to investigate ETG (the effect of temperature gradient coupled with thermal conduction and transport) on the linear stability of the three resistive MHD modes (ballooning, tearing, and interchange). The present model is more realistic than usual for high-temperature plasma in that it includes ETG in addition to the effects from electron diamagnetic drift and compression. It is found that ETG gives substantial stabilization to the resistive ballooning mode, as well as to the tearing mode, while the resistive interchange mode is destabilized by this effect. Though most of the findings are in good agreement in their essential points with existing work, the conclusion associated with the resistive ballooning mode appears to be in disagreement with some aspects of previous work. An analysis of the reasons for this discrepancy is presented.

• Research Organization: Department of Physics, Korea Advanced Institute of Science and Technology, P. O. Box 150, Cheongyangni, Seoul, Korea
• OSTI ID: 6447083
• Journal Information: Phys Fluids B; (United States), Journal Name: Phys Fluids B; (United States) Vol. 1:5; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ANNULAR SPACE
BALLOONING INSTABILITY
CLOSED CONFIGURATIONS
CONFIGURATION
FLUID MECHANICS
FLUTE INSTABILITY
HOT PLASMA
HYDRODYNAMICS
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MAGNETOHYDRODYNAMICS
MECHANICS
NUMERICAL SOLUTION
OSCILLATION MODES
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA SIMULATION
SIMULATION
SPACE
STABILITY
TEARING INSTABILITY
TOROIDAL CONFIGURATION