Toroidal rotation in neutral beam heated discharges in DIII-D

J. S. DeGrassie; D. R. Baker; K. H. Burrell; P. Gohil; C. M. Greenfield; R. J. Groebner; D. M. Thomas

doi:10.1088/0029-5515/43/2/307

Toroidal rotation in neutral beam heated discharges in DIII-D

J. S. DeGrassie, D. R. Baker, K. H. Burrell, P. Gohil, C. M. Greenfield, R. J. Groebner, D. M. Thomas

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68 Scopus citations

Abstract

It is known that the toroidal angular momentum and the ion thermal energy are correlated in tokamak discharges heated by neutral beam injection. Here, data from ten years of measurements on DIII-D are considered, for representative discharges from all types and all conditions. The ratio of simple replacement times for momentum and energy is found to order this correlation indicating that these times are approximately equal, across the minor radius. Representative discharges of several types are discussed in more detail, as well as transport analysis results for the momentum and thermal ion diffusivities.

Original language	English
Pages (from-to)	142-156
Number of pages	15
Journal	Nuclear Fusion
Volume	43
Issue number	2
DOIs	https://doi.org/10.1088/0029-5515/43/2/307
State	Published - Feb 2003
Externally published	Yes

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AU - DeGrassie, J. S.

AU - Baker, D. R.

AU - Burrell, K. H.

AU - Gohil, P.

AU - Greenfield, C. M.

AU - Groebner, R. J.

AU - Thomas, D. M.

PY - 2003/2

Y1 - 2003/2

N2 - It is known that the toroidal angular momentum and the ion thermal energy are correlated in tokamak discharges heated by neutral beam injection. Here, data from ten years of measurements on DIII-D are considered, for representative discharges from all types and all conditions. The ratio of simple replacement times for momentum and energy is found to order this correlation indicating that these times are approximately equal, across the minor radius. Representative discharges of several types are discussed in more detail, as well as transport analysis results for the momentum and thermal ion diffusivities.

AB - It is known that the toroidal angular momentum and the ion thermal energy are correlated in tokamak discharges heated by neutral beam injection. Here, data from ten years of measurements on DIII-D are considered, for representative discharges from all types and all conditions. The ratio of simple replacement times for momentum and energy is found to order this correlation indicating that these times are approximately equal, across the minor radius. Representative discharges of several types are discussed in more detail, as well as transport analysis results for the momentum and thermal ion diffusivities.

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VL - 43

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JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 2

ER -

Toroidal rotation in neutral beam heated discharges in DIII-D

Abstract

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