TITLE:  Tokamak edge turbulence with GRILLIX

ABSTRACT:  The tokamak is currently the most promising reactor concept in order to achieve self sustained magnetic fusion for electricity production. The study of the edge region of tokamaks is crucial as the overall performance of a reactor is to a large extent determined by the edge region and the enormous heat loads on the surrounding material pose severe technological problems. There is an urgent need to develop self-consistent theoretical models and codes with reliable predictive capabilities for next generation tokamaks like ITER. During the seminar the tokamak concept is shortly reviewed with focus on the importance and challenges related with the edge region. A sketch on the derivation of the drift reduced Braginskii model, a model suitable for the description of the tokamak edge, is given. Finally, its implementation in the turbulence code GRILLIX will be discussed and results from simulations in realistic diverted geometry will be presented.