Geometry Dependence of Stellarator Turbulence
Authors: H.E. Mynick, P. Xanthopoulos and A.H. Boozer
Abstract:
Using the nonlinear gyrokinetic code package GENE/GIST, we study the turbulent transport in a broad family of stellarator designs, to understand the geometry-dependence of the microturbulence. By using a set of flux tubes on a given flux surface, we construct a picture of the 2D structure of the microturbulence over that surface, and relate this to relevant geometric quantities, such as the curvature, local shear, and effective potential in the Schrodinger-like equation governing linear drift modes.
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Submitted to:Physics of Plasmas (July 2009)
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Download PPPL-4429 (pdf 1.4MB 15 pp)
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