Global and local energy confinement properties of simple transport coefficients of the Bohm typeFunded under: FP3-FUSION 11C
Global and local energy transport analysis of experimental results in TFTR and JET indicates that transport models of the Bohm type allow a better representation of experimental data than models of the gyro-Bohm type. Hence a Bohm-like model has been developed by allowing a dependence on a few dimensionless parameters so as to reproduce the main features of global L-mode thermal confinement scaling laws in tokamaks and to obtain bowl-shaped thermal diffusivity profiles. The electron temperature profiles predicted by this model are shown to be in agreement with measured ones in a variety of steady state and time dependent JET L-mode discharges.
Bibliographic Reference: Report: JET-P(93)84 EN (1993)
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199311631 / Last updated on: 1994-11-28
Original language: en
Available languages: en