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- W3205857777 abstract "Hall MHD becomes significant in low-density regions of Z-pinches where the ion inertial length is comparable to the characteristic scale length [1] . We present a new explicit method to include the Hall term and anisotropic conductivity in the extended MHD code Gorgon. The Hall term is challenging to model in low-density regions due to the electron drift velocity becoming unphysically large. To mitigate this a vacuum cut-off density is used. This method includes the Hall term as part of the conductivity tensor [2] . With this casting a more intuitive understanding of the formation of force free currents is gained. Force free currents may be significant for MagLIF instability growth [3] . Using Gorgon we have reproduced the results of whistler wave, Huba Hall drift wave and Farmer Hall drift wave test problems [4] , [5] . We investigate extending a Magnetic Rayleigh-Taylor test problem [1] , including the Hall term, to include regions below the vacuum cut-off density. We also study the effects of the Hall term on MHD instability growth in Z-pinches such as Hall driven shear flow. This introduces an asymmetry in the electric field for an m=0 mode simulation which is a deviation from isotropic resistive MHD." @default.
- W3205857777 created "2021-10-25" @default.
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- W3205857777 date "2022-05-22" @default.
- W3205857777 modified "2023-09-26" @default.
- W3205857777 title "Development and Implementation of a Resistive Hall MHD Extension to the Gorgon Code" @default.
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- W3205857777 doi "https://doi.org/10.1109/icops45751.2022.9813224" @default.
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