Numerical investigation of current driven dissipative drift wave turbulence including finite beta and quasilinear effects in a tokamak plasma

Technical Report · Sun Jan 01 04:00:00 EST 1978

OSTI ID:5725787

Weiland, J

Excitation of dissipative drift wave turbulence with waves propagating perpendicular to the density gradient is studied numerically, taking an average over the gradient coordinate. Both situations where the plasma current is the main source of instability and situations more close to an ordinary dissipative drift wave excitation were investigated in the presence of finite beta effects and ion viscosity. The main saturation mechanism was quasilinear modification of the background density. In addition to the usual current induced growth, the current is also found to decrease the finite beta stabilization.

• Research Organization: Nagoya Univ. (Japan). Inst. of Plasma Physics
• OSTI ID: 5725787
• Report Number(s): N-79-20869
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
CLOSED PLASMA DEVICES
DRIFT INSTABILITY
ENERGY-LEVEL TRANSITIONS
EXCITATION
INSTABILITY
ION PLASMA WAVES
ION WAVES
MATHEMATICS
NUMERICAL ANALYSIS
NUMERICAL SOLUTION
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA MICROINSTABILITIES
PLASMA WAVES
QUASILINEAR PROBLEMS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TURBULENCE
VISCOSITY
WAVE PROPAGATION