Fluctuation spectrum and transport from ion temperature gradient driven modes in sheared magnetic fields

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Physics of Fluids B; (USA)

DOI:https://doi.org/10.1063/1.859455· OSTI ID:7055498

Hamaguchi, S; Horton, W ^[1]

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1. Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712 (USA)

The ion temperature gradient driven mode or {eta}{sub {ital i}}-mode turbulence is reinvestigated based on two-component compressible fluid equations with the polarization drift velocity and adiabatic electrons. The scaling of the anomalous ion heat conductivity with magnetic shear {ital s}={ital L}{sub {ital n}}/{ital L}{sub {ital s}} and the excess of {eta}{sub {ital i}} over the critical value {eta}{sub {ital i},{ital c}} for marginal stability is found to vary as {chi}{sub {ital i}}={ital g}({rho}{sub {ital s}}/{ital L}{sub {ital n}})({ital cT}{sub {ital i}}/{ital eB}) ({eta}{sub {ital i}}{minus}{eta}{sub {ital i},{ital c}})exp({minus}{alpha}{ital s}), where {ital g}{congruent}1 and {alpha}{congruent}5.

• DOE Contract Number: FG05-80ET53088
• OSTI ID: 7055498
• Journal Information: Physics of Fluids B; (USA), Journal Name: Physics of Fluids B; (USA) Vol. 2:8; ISSN PFBPE; ISSN 0899-8221
• 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
ADIABATIC PROCESSES
COMPRESSIBILITY
FLUCTUATIONS
ION TEMPERATURE
MAGNETIC FIELDS
MECHANICAL PROPERTIES
PLASMA
SHEAR
STABILITY
TEMPERATURE GRADIENTS
TURBULENCE
VARIATIONS