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ORNL theory/modeling contributions to NCSX

ORNL theory/modeling contributions to NCSX. Equilibrium V3FIT: rapid 3D reconstruction (ORNL/Auburn/GA) VMEC with islands (under development) - goal: fast enough to include inside optimization loop Transport Momentum transport, plasma flows, bootstrap current

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ORNL theory/modeling contributions to NCSX

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  1. ORNL theory/modeling contributions to NCSX • Equilibrium • V3FIT: rapid 3D reconstruction (ORNL/Auburn/GA) • VMEC with islands (under development) - goal: fast enough to include inside optimization loop • Transport • Momentum transport, plasma flows, bootstrap current • Electric field evolution/diffusion, f viscous stress tensor, flow evolution • Predict Er/flow shearing rates w/wo external momentum sources (NBI) • Connection to gyrokinetic codes, stellarator confinement scaling studies • Heating • AORSA code includes 3D option: has been applied to LHD • Connect 3D codes to SWIM interface (currently includes TRANSP) • Stability • STELLGAP: Alfvén gaps and mode structure • Connect to particle code (DELTA5D) for energetic particle transport/reduced stability models • Joint work with Y. Todo (NIFS) on extended MHD/closure relations

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