Ion temperature gradient-driven turbulence in tokamaks with flat density profiles

Journal Article · Sun Oct 01 04:00:00 EDT 1989 · Physics of Fluids B: Plasma Physics; (USA)

DOI:https://doi.org/10.1063/1.859062· OSTI ID:5550626

Mattor, N ^[1]; Diamond, P H ^[2]

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1. Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712 (US)
2. Department of Physics, University of California, San Diego, La Jolla, California 92093 and General Atomics, San Diego, California 92138

The theory of ion temperature gradient-driven turbulence in tokamaks is extended to the flat density regime. The values of ion and electron thermal conductivities, {chi}{sub {ital i}} and {chi}{sub {ital e}}, momentum diffusivity {chi}{sub {var phi}}, and particle flux {Gamma}{sub {ital r}} are also calculated. These formulas extend previous calculations, which were restricted to the regime {ital L}{sub {ital n}}{lt}({ital L}{sub {ital s}}L{sub {ital T}}){sup 1/2} (Phys. Fluids {bold 29}, 3291 (1986); Phys. Fluids {bold 31}, 1180 (1988)). This allows an assessment of the role of ion temperature gradient turbulence in H modes, where the density gradient is often observed to be flattened in the plasma core.

• OSTI ID: 5550626
• Journal Information: Physics of Fluids B: Plasma Physics; (USA), Journal Name: Physics of Fluids B: Plasma Physics; (USA) Vol. 1:10; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700103* -- Fusion Energy-- Plasma Research-- Kinetics
700107 -- Fusion Energy-- Plasma Research-- Instabilities
CLOSED PLASMA DEVICES
ELECTRON TEMPERATURE
HEAT FLUX
ION TEMPERATURE
MOMENTUM TRANSFER
PLASMA
TEMPERATURE GRADIENTS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TURBULENCE