A multispecies 13moment model for moderately collisional plasmas
Abstract
Fluidbased models of collisional transport in multispecies plasmas have typically been applied to parameter regimes where a local thermal equilibrium is assumed. While this parameter regime is valid for low temperature and/or high density applications, it begins to fail as plasmas enter the collisionless regime and kinetic effects dominate the physics. A plasma model is presented that lays the foundation for extending the validity of the collisional fluid regime using an anisotropic 13moment fluid model derived from the Pearson typeIV probability distribution. The model explicitly evolves the pressure tensor and heat flux vector along with the density and flow velocity to capture dynamics usually restricted to kinetic models. Each particle species is modeled individually and collectively coupled through electromagnetic and collisional interactions.
 Authors:
 Aerospace and Energetics Research Program, University of Washington, Seattle, Washington 981952250 (United States)
 Publication Date:
 OSTI Identifier:
 22599976
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 8; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; COLLISIONAL PLASMA; DENSITY; DISTRIBUTION; FLUIDS; HEAT FLUX; INTERACTIONS; PARTICLES; PROBABILITY; TEMPERATURE RANGE 00650273 K; THERMAL EQUILIBRIUM; TRANSPORT THEORY; VECTORS; VELOCITY
Citation Formats
Miller, S. T., Email: smiller3@uw.edu, and Shumlak, U., Email: shumlak@uw.edu. A multispecies 13moment model for moderately collisional plasmas. United States: N. p., 2016.
Web. doi:10.1063/1.4960041.
Miller, S. T., Email: smiller3@uw.edu, & Shumlak, U., Email: shumlak@uw.edu. A multispecies 13moment model for moderately collisional plasmas. United States. doi:10.1063/1.4960041.
Miller, S. T., Email: smiller3@uw.edu, and Shumlak, U., Email: shumlak@uw.edu. 2016.
"A multispecies 13moment model for moderately collisional plasmas". United States.
doi:10.1063/1.4960041.
@article{osti_22599976,
title = {A multispecies 13moment model for moderately collisional plasmas},
author = {Miller, S. T., Email: smiller3@uw.edu and Shumlak, U., Email: shumlak@uw.edu},
abstractNote = {Fluidbased models of collisional transport in multispecies plasmas have typically been applied to parameter regimes where a local thermal equilibrium is assumed. While this parameter regime is valid for low temperature and/or high density applications, it begins to fail as plasmas enter the collisionless regime and kinetic effects dominate the physics. A plasma model is presented that lays the foundation for extending the validity of the collisional fluid regime using an anisotropic 13moment fluid model derived from the Pearson typeIV probability distribution. The model explicitly evolves the pressure tensor and heat flux vector along with the density and flow velocity to capture dynamics usually restricted to kinetic models. Each particle species is modeled individually and collectively coupled through electromagnetic and collisional interactions.},
doi = {10.1063/1.4960041},
journal = {Physics of Plasmas},
number = 8,
volume = 23,
place = {United States},
year = 2016,
month = 8
}

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