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University of Montana

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2018

Quasi-Single Helicity

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Full-Text Articles in Physical Sciences and Mathematics

Resistive Mhd Evolution Of Shaped Rfp Equilibria, Joe Newman, Andrew S. Ware, Nimrod Team, University Of Montana, Missoula Nov 2018

Resistive Mhd Evolution Of Shaped Rfp Equilibria, Joe Newman, Andrew S. Ware, Nimrod Team, University Of Montana, Missoula

UM Plasma Group Publications

Computational modeling of the resistive MHD evolution of reverse-field-pinch (RFP) plasmas with boundary shaping is undertaken. The VMEC code obtains equilibria that are similar to quasi-single helicity (QSH) states in an RFP with a helical axis and a symmetric boundary [J.D. Hanson, et al., Nuclear Fusion 53, 083016 (2013)]. Previous work has shown that axisymmetric boundary shaping affects whether an axisymmetric or QSH equilibrium is obtained in VMEC and it affects the extent of the swing of the helical axis in the QSH state. In this work, these equilibria are used as initial conditions for the NIMROD code [C.R. …