Comparison of theory-based and semi-empirical transport modelling in JET plasmas with ITBs
Artikel i vetenskaplig tidskrift, 2002

The theory-based Weiland transport model has been applied to JET discharges with internal transport barriers (ITBs) for the first time. The agreement of the modelling results with the experiments has been found to be comparable with the agreement of the modelling results produced by the semi-empirical Bohm/gyro-Bohm transport model. Weiland model overestimates the width of the ITB and the electron temperature. There is evidence that the density gradient in the Weiland model plays a more important role in governing the ITB formation dynamics for JET discharges than the suppression of turbulence by the omega(ExB) flow shearing rate.

Författare

TJJ Tala

VV Parail

A becoulet

G Corrigan

DJ Heading

MJ Mantsinen

Pär Strand

Chalmers, Institutionen för elektromagnetik

EFDA-JET Workprogramme

Plasma Physics and Controlled Fusion

0741-3335 (ISSN) 1361-6587 (eISSN)

Vol. 44 A495-A500

Ämneskategorier

Fusion, plasma och rymdfysik