Ion temperature gradient driven turbulence in the weak density gradient limit

Technical Report · Sun Apr 01 04:00:00 EDT 1990

DOI:https://doi.org/10.2172/6824581· OSTI ID:6824581

Hamaguchi, Satoshi; Horton, W

The anomalous heat transport arising from the ion temperature gradient driven mode or {eta}{sub i}-mode turbulence is extended to the range of the weak density gradient limit ({eta}{sub i} = L{sub n}/L{sub T} {yields} {infinity}), which is appropriate for H-mode discharges. It is shown that the anomalous ion heat conductivity {chi}{sub i} with L{sub n} {yields} {infinity} scales as {chi}{sub i} = g({rho}{sub s}L{sub T})(cT{sub i}/eB)exp(-{beta}{sigma}) with {sigma} = (T{sub e}/T{sub i})(L{sub T}/L{sub s}), {beta} {approx equal} 4 and g {approx equal} 1. This {chi}{sub i} scaling is the natural extension for high {eta}{sub i} of the scaling of {chi}{sub i} for K = (T{sub i}/T{sub e})(1 + {eta}{sub i}) {approx gt} 4 obtained from analytical and numerical studies.

• Research Organization: Texas Univ., Austin, TX (USA). Inst. for Fusion Studies
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG05-80ET53088
• OSTI ID: 6824581
• Report Number(s): DOE/ET/53088-430; IFSR--430; ON: DE90012578
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700103* -- Fusion Energy-- Plasma Research-- Kinetics
CLOSED PLASMA DEVICES
COMPUTERIZED SIMULATION
CONFINEMENT
DIFFUSION
ENERGY TRANSFER
H-MODE PLASMA CONFINEMENT
HEAT TRANSFER
ION TEMPERATURE
NONLINEAR PROBLEMS
PHYSICAL PROPERTIES
PLASMA CONFINEMENT
SIMULATION
TEMPERATURE GRADIENTS
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TURBULENCE