Gyro-Landau fluid models for toroidal geometry

Journal Article · Thu Oct 01 00:00:00 EDT 1992 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.860422· OSTI ID:7008972

Waltz, R E; Dominguez, R R ^[1]; Hammett, G W ^[2]

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1. General Atomics, San Diego, California 92186-9084 (United States)
2. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

Gyro-Landau fluid model equations provide first-order time advancement for a limited number of moments of the gyrokinetic equation, while approximately preserving the effects of the gyroradius averaging and Landau damping. This paper extends the work of Hammett and Perkins (Phys. Rev. Lett. {bold 64}, 3019 (1990)) for electrostatic motion parallel to the magnetic field and {ital E}{times}{ital B} motion to include the gyroaveraging linearly and the curvature drift motion. The equations are tested by comparing the ion-temperature-gradient mode linear growth rates for the model equations with those of the exact gyrokinetic theory over a full range of parameters.

• DOE Contract Number: AC03-89ER53277; AC02-76CH03073
• OSTI ID: 7008972
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 4:10; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700330* -- Plasma Kinetics
Transport
& Impurities-- (1992-)
ANNULAR SPACE
CLOSED CONFIGURATIONS
CONFIGURATION
DAMPING
ELECTROSTATICS
EQUATIONS
INSTABILITY GROWTH RATES
ION TEMPERATURE
KINETIC EQUATIONS
LANDAU DAMPING
MAGNETIC FIELD CONFIGURATIONS
MOMENTS METHOD
SPACE
TOROIDAL CONFIGURATION
TURBULENCE