DEVELOPMENT OF A TRANSPORT MODEL FOR CANONICAL PROFILES AND ITS APPLICATIONS

A transport model for canonical profiles is used to describe the ELMy ii-modes and the particle balance and to analyze dimensionally similar discharges (rho-series) in the JET and DIII-D tokamaks. It is shown that a time-averaged description of the ELMy H-modes can be used under the assumption that the electrons are in the L-mode and the ions pass over to the ii-mode. The behavior of the electrons can be described b y gyro-Bohm scaling, whereas the ions do not conform to any scaling. T he transport model for canonical profiles is supplemented with the par ticle balance equation. The density balance in the T-10 tokamak was si mulated with allowance for a prescribed particle source. The results o btained are shown to agree well with experiments.