Ion thermal conductivity for a pure tokamak plasma

Journal Article · Tue Feb 01 04:00:00 EST 1983 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864159· OSTI ID:6422246

Bolton, C; Ware, A A

The neoclassical and Pfirsch--Schlueter components of the ion heat conduction for a pure hydrogen tokamak plasma are recalculated without assuming large aspect ratio and without neglecting energy scattering collisions. Using a model collision operator, the conductivity is determined numerically for various collision frequencies and aspect ratios. An approximate algebraic expression is fitted to the results. Even for comparatively large aspect ratios (approx.10) energy scattering increases the conductivity in the banana regime by about 50% and for small aspect ratios (approximately 3.3) the Pfirsch--Schlueter contribution causes a further increase of approximately 60%.

• Research Organization: Fusion Research Center, University of Texas at Austin, Austin, Texas 78712
• OSTI ID: 6422246
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 26:2; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
ASPECT RATIO
BANANA REGIME
CLOSED PLASMA DEVICES
COLLISIONS
ELEMENTS
ENERGY LOSSES
HYDROGEN
ION TEMPERATURE
LOSSES
MATHEMATICAL OPERATORS
NONMETALS
PHYSICAL PROPERTIES
PLASMA
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRAPPING