An improved ten-moment closure for reconnection and instabilities
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2020-08-21
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Ng, Jonathan et al.; An improved ten-moment closure for reconnection and instabilities; Physics of Plasmas 27, 082106, 21 August, 2020; https://doi.org/10.1063/5.0012067
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This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Ng, Jonathan et al.; An improved tenmoment closure for reconnection and instabilities; Physics of Plasmas 27, 082106, 21 August, 2020; https://doi.org/10.1063/5.0012067 and may be found at https://aip.scitation.org/doi/10.1063/5.0012067
Access to this item will begin on 2021-08-21
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Ng, Jonathan et al.; An improved tenmoment closure for reconnection and instabilities; Physics of Plasmas 27, 082106, 21 August, 2020; https://doi.org/10.1063/5.0012067 and may be found at https://aip.scitation.org/doi/10.1063/5.0012067
Access to this item will begin on 2021-08-21
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Abstract
The integration of kinetic effects in fluid models is important for global simulations of Earth's magnetosphere. The use of the two-fluid ten-moment model, which includes the pressure tensor for both species, has had some success in simulating Ganymede and Mercury with a simple closure model. We discuss a heat flux closure which accounts for some limitations of the earlier work while remaining computationally tractable. Comparisons with kinetic simulations for magnetic reconnection and lower-hybrid drift instabilities show good agreement with kinetic results and improvements on previous closure models.