Simulating Gyrokinetic Microinstabilities in Stellarator Geometry with GS2

D. R. Mikkelsen; E. A. Belli; G. Rewoldt; G. W. Hammett; J. A. Baumgaertel; P. Xanthopoulos; W. Dorland; W. Guttenfelder; W. M. Tang

arxiv: 1109.4558 · v1 · pith:S3ES2NXFnew · submitted 2011-09-21 · ⚛️ physics.plasm-ph

Simulating Gyrokinetic Microinstabilities in Stellarator Geometry with GS2

J. A. Baumgaertel , E. A. Belli , W. Dorland , W. Guttenfelder , G. W. Hammett , D. R. Mikkelsen , G. Rewoldt , W. M. Tang

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P. Xanthopoulos

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classification ⚛️ physics.plasm-ph

keywords stellaratorbeencodefullgeometrygyrokineticlinearagree

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The nonlinear gyrokinetic code GS2 has been extended to treat non-axisymmetric stellarator geometry. Electromagnetic perturbations and multiple trapped particle regions are allowed. Here, linear, collisionless, electrostatic simulations of the quasi-axisymmetric, three-field period National Compact Stellarator Experiment (NCSX) design QAS3-C82 have been successfully benchmarked against the eigenvalue code FULL. Quantitatively, the linear stability calculations of GS2 and FULL agree to within ~10%.

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Simulating Gyrokinetic Microinstabilities in Stellarator Geometry with GS2

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