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Title: Theory-based transport simulations of TFTR L-mode temperature profiles

Journal Article · · Physics of Fluids B; (United States)
DOI:https://doi.org/10.1063/1.860261· OSTI ID:7234008
 [1]
  1. Princeton, Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)

The temperature profiles from a selection of Tokamak Fusion Test Reactor (TFTR) L-mode discharges (17{ital th} {ital European} {ital Conference} {ital on} {ital Controlled} {ital Fusion} {ital and} {ital Plasma} {ital Heating}, Amsterdam, 1990 (EPS, Petit-Lancy, Switzerland, 1990, p. 114)) are simulated with the 1 (1)/(2) -D baldur transport code (Comput. Phys. Commun. {bold 49}, 275 (1988)) using a combination of theoretically derived transport models, called the Multi-Mode Model (Comments Plasma Phys. Controlled Fusion {bold 11}, 165 (1988)). The present version of the Multi-Mode Model consists of effective thermal diffusivities resulting from trapped electron modes and ion temperature gradient ({eta}{sub {ital i}}) modes, which dominate in the core of the plasma, together with resistive ballooning modes, which dominate in the periphery. Within the context of this transport model and the TFTR simulations reported here, the scaling of confinement with heating power comes from the temperature dependence of the {eta}{sub {ital i}} and trapped electron modes, while the scaling with current comes mostly from resistive ballooning modes.

DOE Contract Number:
AC02-76CH03073
OSTI ID:
7234008
Journal Information:
Physics of Fluids B; (United States), Vol. 4:3; ISSN 0899-8221
Country of Publication:
United States
Language:
English