Edge turbulence and transport: Text and ATF modeling

Conference · Mon Jan 01 00:00:00 EST 1990

OSTI ID:6586066

Ritz, C P; Rhodes, T L; Lin, H; Rowan, W L; Bengtson, R; Wootton, A J ^[1]; Carreras, B A; Leboeuf, J N; Lee, D K; Harris, J; Hidalgo, C; Bell, J D; Holmes, J A; Isler, R; Lynch, V E; Uckan, T ^[2]; Diamond, P H; Ware, A S ^[3]; Thayer, D R ^[4]

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1. Texas Univ., Austin, TX (USA). Fusion Research Center
2. Oak Ridge National Lab., TN (USA)
3. California Univ., San Diego, La Jolla, CA (USA)
4. Science Applications Inter

We present experimental results on edge turbulence and transport from the tokamak TEXT and the torsatron ATF. The measured electrostatic fluctuations can explain the edge transport of particles and energy. Certain drive (radiation) and stabilizing (velocity shear) terms are suggested by the results. The experimental fluctuation levels and spectral widths can be reproduced by considering the nonlinear evolution of the reduced MHD equations, incorporating a thermal drive from line radiation. In the tokamak limit (with toroidal electric field) the model corresponds to the resistivity gradient mode, while in the currentless torsatron or stellarator limit it corresponds to a thermally driven drift wave.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6586066
• Report Number(s): CONF-901025-6; IAEA-CN-53/C-3-4; ON: DE90017326; TRN: 90-029104
• Resource Relation: Conference: 13. international conference on plasma physics and controlled nuclear fusion research, Washington, DC (USA), 1-6 Oct 1990
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ATF TORSATRON
TRANSPORT THEORY
TURBULENCE
TEXT DEVICES
ELECTRON TEMPERATURE
FLUCTUATIONS
MHD EQUILIBRIUM
TEMPERATURE GRADIENTS
CLOSED PLASMA DEVICES
EQUILIBRIUM
STELLARATORS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TORSATRON STELLARATOR
VARIATIONS
700103* - Fusion Energy- Plasma Research- Kinetics