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(THP2/28) Numerical and Theoretical Studies of Turbulence and Transport with E x B Shear Flows

   
Z. Lin , M. S. Chance , T. S. Hahm , J. A. Krommes , W. W. Lee , I. Manuilskiy , H. Mynick , H. Qin , G. Rewoldt , W. M. Tang , and R. B. White 
 
Princeton Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543

Abstract
This paper reports: (1) substantial transport reduction by turbulence-driven E $\times$ B flows observed in 3D nonlinear gyrokinetic simulations  of microturbulence in magnetically-confined toroidal plasmas; (2) analytical derivation of the effective shearing rate for the time-dependent E $\times$ B flow; (3) interpretation of experimental data using linear gyrokinetic microinstability rotation models of E $\times$ B shear; and (4) other developments in gyrokinetic theory and simulation.

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