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(TH/P3-08) Integrated Predictive Modelling of JET H-mode Plasmas with Type-I ELMs

V. Parail1), G. Bateman2), M. Becoulet3), G. Corrigan1), D. Heading1), J. Hogan4), W. Houlberg4), G.T.A. Huysmans3), J. Kinsey2), A. Korotkov1), A. Kritz2), A. Loarte5), J. Lonnroth6), D. McDonald1), P. Monier-Garbet3), T. Onjun2), G. Saibene5), R. Sartori5), S.E. Sharapov1), H.R. Wilson1)
 
1) EURATOM/UKAEA Fusion Accosiation, Culham Science Centre, Abingdon, United Kingdom
2 Lehigh University, Bethlehem, PA, USA
3 Association Euratom-CEA, Cadarache, St. Paul lez Durance, France
4 Oak Ridge National Laboratory, MS, USA;
5 EFDA CSU Garching, Garching, Germany;
6 Association EURATOM-TEKES, Helsinki University of Technology, Finland

Abstract.  It is well known that edge plasma parameters influence performance in many different ways (profile stiffness is probably one of the best known examples). In ELMy H-mode a thin region with improved transport characteristics (Edge Transport Barrier) controls link between core transport and scrape-off layer. There is a strong link between these three areas, so that even a modest variation of plasma parameters in one region can lead to a dramatic change in the overall plasma performance. Systematic analysis and self-consistent integrated predictive modelling of a series of JET ELMy H-mode plasmas, including scans in gas fuelling, triangularity, current ramp up/down and a scan in radiated power will be presented. The main conclusion is that indeed plasma performance depends sensitively on the edge plasma parameters, which should be modelled in a self-consistent way.

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IAEA 2003