Return To: Session THP1 - Turbulence, Transport & Edge Physics
Prev Page: (THP1/02) Self-Similarity and Structures of Plasma Turbulence
Next Page: (THP1/04) The Role of Dynamo Fluctuations in Anomalous

(THP1/03) Progress in Gyrokinetic Simulations of Toroidal ITG Turbulence

W. M. Nevins¹⁾, A. M. Dimits¹⁾, B. I. Cohen¹⁾, D. E. Shumaker^1)
 
1) Lawrence Livermore National Laboratory, California, USA

Abstract.  The 3-D nonlinear toroidal gyrokinetic simulation code PG3EQ is used to study toroidal ion temperature gradient (ITG) driven turbulence - a key cause of the anomalous transport that limits tokamak plasma performance. Systematic studies of the dependence of ion thermal transport on various parameters and effects are presented, including dependence on $\vec{E}\,$×$\vec{B}\,$ and toroidal velocity shear, sensitivity to the force balance in simulations with radial temperature gradient variation, and the dependences on magnetic shear and ion temperature gradient.

Read the full paper in PDF format.