1-D predictive and analysis transport model for particle and energy transport in stellarators

In the last few years, significant progress has been made in the understanding of H-mode plasma transport features (e.g. the LH transition, pedestal physics, shear flow suppression etc.) in tokamak plasmas. Based on this improved understanding, a set of roles (transport models) composing a physics picture of the improved confinement modes of operation has been implemented in transport codes to analyse the experimental observations and ultimately to provide a predictive capability for ITER, complementary to the scaling relations [I]. The same approach can be applied to stellarator plasmas. In spite of clear and pronounced differences in magnetic topology, tokamak transport models can be used (after some obvious corrections) for analysis and predictive simulation of stellarator plasmas. Copyright (2002) Australian National University- Research School of Physical Sciences and Engineering