Full Radius Electromagnetic Gyrokinetic Turbulence Code
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We describe work in progress to formulate a general geometry full radius nonlinear electromagnetic gyrokinetic code to simulate high-n turbulence and transport in tokamaks. The code employs continuum (fluid-like) methods in a 5-dimensional grid space. The code has three modes of operation: (1) flux tube with periodic radial boundary condition (i.e, a high-n ballooning mode representation with ∆n≈10 ) ; (2) a full radius wedge code (∆n≈10) to study profiles shear effects; and (3) a full torus ( ∆n=1) code to study coupling to low-n MHD.
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