Exact and locally implicit source term solvers for multifluid-Maxwell systems

Wang, Liang; Hakim, Ammar; Ng, Jonathan; Dong, Chuanfei; Germaschewski, K.

doi:10.1016/j.jcp.2020.109510

Cited by 23 publications

(19 citation statements)

References 40 publications

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“…The multimoment multifluid code has been used to study many laboratory and space plasma physics problems (e.g., Ng et al, 2015Ng et al, , 2019TenBarge et al, 2019;Wang et al, 2018). The details concerning the numerics and benchmark examples have been described in Hakim et al (2006), Hakim (2008, and Wang et al (2019).…”

Section: Ten-moment Equationsmentioning

confidence: 99%

Global Ten‐Moment Multifluid Simulations of the Solar Wind Interaction with Mercury: From the Planetary Conducting Core to the Dynamic Magnetosphere

Dong

Wang

Hakim

et al. 2019

Geophysical Research Letters

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For the first time, we explore the tightly coupled interior‐magnetosphere system of Mercury by employing a three‐dimensional ten‐moment multifluid model. This novel fluid model incorporates the nonideal effects including the Hall effect, electron inertia, and tensorial pressures that are critical for collisionless magnetic reconnection; therefore, it is particularly well suited for investigating collisionless magnetic reconnection in Mercury's magnetotail and at the planet's magnetopause. The model is able to reproduce the observed magnetic field vectors, field‐aligned currents, and cross‐tail current sheet asymmetry (beyond magnetohydrodynamic approach), and the simulation results are in good agreement with spacecraft observations. We also study the magnetospheric response of Mercury to a hypothetical extreme event with an enhanced solar wind dynamic pressure, which demonstrates the significance of induction effects resulting from the electromagnetically coupled interior. More interestingly, plasmoids (or flux ropes) are formed in Mercury's magnetotail during the event, indicating the highly dynamic nature of Mercury's magnetosphere.

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Section: Ten-moment Equationsmentioning

confidence: 99%

Global Ten‐Moment Multifluid Simulations of the Solar Wind Interaction with Mercury: From the Planetary Conducting Core to the Dynamic Magnetosphere

Dong

Wang

Hakim

et al. 2019

Geophysical Research Letters

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“…We therefore test our reconstruction techniques on magnetic fields drawn from numerical simulations of turbulence. In particular, we utilize the magnetic fields from a fully developed turbulence simulation performed with the five moment, multi-fluid solver within the Gkeyll simulation framework (Hakim et al, 2006;Wang et al, 2015Wang et al, , 2020. This turbulence simulation is designed to represent plasma behavior in the pristine solar wind at 1AU.…”

Section: Turbulence Simulationmentioning

confidence: 99%

Magnetic Field Reconstruction for a Realistic Multi-Point, Multi-Scale Spacecraft Observatory

Broeren

Klein

TenBarge

et al. 2021

Front. Astron. Space Sci.

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Future in situ space plasma investigations will likely involve spatially distributed observatories comprised of multiple spacecraft, beyond the four and five spacecraft configurations currently in operation. Inferring the magnetic field structure across the observatory, and not simply at the observation points, is a necessary step towards characterizing fundamental plasma processes using these unique multi-point, multi-scale data sets. We propose improvements upon the classic first-order reconstruction method, as well as a second-order method, utilizing magnetometer measurements from a realistic nine-spacecraft observatory. The improved first-order method, which averages over select ensembles of four spacecraft, reconstructs the magnetic field associated with simple current sheets and numerical simulations of turbulence accurately over larger volumes compared to second-order methods or first-order methods using a single regular tetrahedron. Using this averaging method on data sets with fewer than nine measurement points, the volume of accurate reconstruction compared to a known magnetic vector field improves approximately linearly with the number of measurement points.

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“…*Due to the limited scope of our study, investigation into the specific instrument operations required to achieve this objective was not fully explored (see Section 2.2.2) and would require further study for verification. Depiction of Uranus' complex magnetic field interaction with incident solar wind from the ten-moment multifluid magnetosphere simulation (for model details, please refer to [41,42] and [43]. The color contours depict the proton density in cm -3 .…”

Section: Resultsmentioning

confidence: 99%

“…Depiction of Uranus' complex magnetic field interaction with incident solar wind from the ten-moment multifluid magnetosphere simulation (for model details, please refer to[41,42,43]. The color contours depict the proton density in cm -3 .…”

mentioning

confidence: 99%

QUEST: A New Frontiers Uranus orbiter mission concept study

et al. 2020

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Exact and locally implicit source term solvers for multifluid-Maxwell systems

Cited by 23 publications

References 40 publications

Global Ten‐Moment Multifluid Simulations of the Solar Wind Interaction with Mercury: From the Planetary Conducting Core to the Dynamic Magnetosphere

Global Ten‐Moment Multifluid Simulations of the Solar Wind Interaction with Mercury: From the Planetary Conducting Core to the Dynamic Magnetosphere

Magnetic Field Reconstruction for a Realistic Multi-Point, Multi-Scale Spacecraft Observatory

QUEST: A New Frontiers Uranus orbiter mission concept study

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