Poloidal rotation, density asymmetries, and momentum confinement in tokamak experiments

Journal Article · Tue Jun 01 04:00:00 EDT 1993 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860819· OSTI ID:6429398

Stacey, W M; Jackson, D R ^[1]

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1. Fusion Research Center and Nuclear Engineering Program, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)

Poloidal rotation speeds and density asymmetries are calculated for the deuterium and dominant carbon (oxygen) impurity ions in discharges in the Axially Symmetric Divertor Experiment (ASDEX) [[ital Proceedings] [ital of] [ital the] 13[ital th] [ital Conference] [ital on] [ital Plasma] [ital Physics] [ital and] [ital Controlled] [ital Fusion] [ital Research], (International Atomic Energy Agency, Vienna, 1991), p. 325], Doublet III (DIII) [Nucl. Fusion [bold 26], 543 (1986)], Impurity Studies Experiment (ISX-B) [Nucl. Fusion [bold 23], 1017 (1983)], Joint European Torus (JET) [Nucl. Fusion [bold 31], 31 (1991)] and Tokamak Fusion Test Reactor (TFTR) (National Technical Information Document No. PB92177187) for which [ital v][sub [phi]][similar to][ital v][sub th] for the ions. These poloidal rotation speeds and density asymmetries are used to evaluate the neoclassical gyroviscous model for the momentum confinement time. The rather good agreement with experimental momentum confinement times obtained over this wide range of plasma parameters provides a measure of confidence in the calculated density asymmetries and poloidal rotation, as well as demonstrating that neoclassical calculations can predict momentum confinement in tokamaks.

• OSTI ID: 6429398
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 5:6; ISSN 0899-8221; ISSN PFBPEI
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700310 -- Plasma Confinement-- (1992-)
700330* -- Plasma Kinetics
Transport
& Impurities-- (1992-)
ASYMMETRY
CARBON
CLOSED PLASMA DEVICES
CONFINEMENT
DEUTERIUM
ELEMENTS
HYDROGEN ISOTOPES
IMPURITIES
ION DENSITY
ISOTOPES
LIGHT NUCLEI
MOMENTUM TRANSFER
NONMETALS
NUCLEI
ODD-ODD NUCLEI
PLASMA
PLASMA CONFINEMENT
ROTATING PLASMA
STABLE ISOTOPES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRANSPORT THEORY