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Lattice Boltzmann magnetohydrodynamics with current-dependent resistivity

Abstract:

Lattice Boltzmann magnetohydrodynamics is extended to allow the resistivity to be a prescribed function of the local current density. Current-dependent resistivities are used to model the so-called anomalous resistivity caused by unresolved small-scale processes, such as current-driven plasma microturbulence, that are excluded by the magnetohydrodynamics approximation. These models closely resemble the Smagorinsky eddy viscosity model used in large eddy simulations of hydrodynamic turbulence....

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Publication status:
Published

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Publisher copy:
10.1016/j.jcp.2012.11.021

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Institution:
University of Oxford
Department:
Oxford, MPLS, Mathematical Inst
Journal:
JOURNAL OF COMPUTATIONAL PHYSICS
Volume:
237
Pages:
115-131
Publication date:
2013-03-15
DOI:
EISSN:
1090-2716
ISSN:
0021-9991
URN:
uuid:cd353812-cbca-48d0-b701-1014803f1b5a
Source identifiers:
379415
Local pid:
pubs:379415

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