Neoclassical transport coefficients for tokamaks with bean-shaped flux surfaces

Journal Article · Fri Feb 01 00:00:00 EST 1991 · Physics of Fluids B; (USA)

DOI:https://doi.org/10.1063/1.859749· OSTI ID:6146320

Chang, C S ^[1]; Kaye, S M ^[2]

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1. Courant Institute of Mathematical Sciences, New York University, 251 Mercer Street, New York, New York 10012 (USA)
2. Plasma Physics Laboratory, Princeton University, Princeton, NJ (USA)

Simple analytic representations of the neoclassical transport coefficients for indented flux surfaces are presented. It is shown that a transport coefficient for an indented flux surface can be expressed in terms of a linear combination of the previously known transport coefficients for two nonindented flux surfaces. Numerical calculations based on actual equilibria from the PBX-M tokamak (Phys. Fluids B {bold 2}, 1271 (1990)) indicate that, even for modestly indented flux surfaces, the ion neoclassical thermal transport can be over a factor of 2 smaller than in a circular plasma with the same midplane radius or with the equivalent area.

• DOE Contract Number: FG02-86ER53223; AC02-76CH03073
• OSTI ID: 6146320
• Journal Information: Physics of Fluids B; (USA), Vol. 3:2; ISSN 0899-8221
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COLLISIONAL PLASMA
MAGNETIC SURFACES
TOKAMAK DEVICES
PLASMA CONFINEMENT
ANALYTICAL SOLUTION
COORDINATES
ION DRIFT
MAGNETIC FIELD CONFIGURATIONS
NUMERICAL DATA
PBX DEVICES
CLOSED PLASMA DEVICES
CONFINEMENT
DATA
INFORMATION
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THERMONUCLEAR DEVICES
700101* - Fusion Energy- Plasma Research- Confinement
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