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Bridging kinetic plasma descriptions and single fluid models

Abstract : The purpose of this paper is to bridge kinetic plasma descriptions and low frequency single fluid models. More specifically, the asymptotics leading to Magneto-Hydro-Dynamic (MHD) regimes starting from the Vlasov-Maxwell system are investigated. The analogy with the derivation, from the Vlasov-Poisson system, of a fluid representation for the ions coupled to the Boltzmann relation for electrons is also outlined. The aim is to identify asymptotic parameters explaining the transitions from one microscopic description to a macroscopic low frequency model. These investigations provide ground work for the derivation of multi-scale numerical methods, model coupling or physics based preconditioning.
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https://hal.archives-ouvertes.fr/hal-02931878
Contributor : Anaïs Crestetto <>
Submitted on : Monday, September 7, 2020 - 12:13:20 PM
Last modification on : Wednesday, October 14, 2020 - 4:16:19 AM

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  • HAL Id : hal-02931878, version 1

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Anais Crestetto, Fabrice Deluzet, David Doyen. Bridging kinetic plasma descriptions and single fluid models. Journal of Plasma Physics, Cambridge University Press (CUP), In press. ⟨hal-02931878⟩

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