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

  title={Exact and locally implicit source term solvers for multifluid-Maxwell systems},
  author={Liang Wang and Ammar H. Hakim and Jonathan Ng and Chuanfei Dong and Kai Germaschewski},
  journal={J. Comput. Phys.},

Figures from this paper

Coupling multi-fluid dynamics equipped with Landau closures to the particle-in-cell method

The particle-in-cell (PIC) method is successfully used to study magnetized plasmas. However, this requires large computational costs and limits simulations to short physical run-times and often to

Numerical study of magnetic island coalescence using magnetohydrodynamics with adaptively embedded particle-in-cell model

Collisionless magnetic reconnection typically requires kinetic treatment that is, in general, computationally expensive compared to fluid-based models. In this study, we use the magnetohydrodynamics

Data-driven, multi-moment fluid modeling of Landau damping

Data-Driven Modeling of Landau Damping by Physics-Informed Neural Networks

This work sheds new light on the accurate and e-cient modeling of large-scale systems, which can be extended to complex multiscale laboratory, space, and astrophysical plasma physics problems.

Electron cyclotron drift instability and anomalous transport: two-fluid moment theory and modeling

In the presence of a strong electric field perpendicular to the magnetic field, the electron cross-field (E × B) flow relative to the unmagnetized ions can cause the so-called electron cyclotron

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

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

Fluid simulations of three-dimensional reconnection that capture the lower-hybrid drift instability

Fluid models that approximate kinetic effects have received attention recently in the modelling of large-scale plasmas such as planetary magnetospheres. In three-dimensional reconnection, both

An improved ten-moment closure for reconnection and instabilities

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



A high resolution wave propagation scheme for ideal Two-Fluid plasma equations

A 10-moment fluid numerical solver of plasma with sheaths in a Hall Effect Thruster

Electric propulsion can reach higher exhaust velocities compared to chemical systems and thus result in lower propellant mass requirements. Among the different electric propulsion systems, Hall

A Versatile Numerical Method for the Multi-Fluid Plasma Model in Partially- and Fully-Ionized Plasmas

We present an innovative numerical method that solves for the multi-fluid plasma equations, including the transport, frictional, and chemical reactions terms, coupled to full Maxwell’s equations. The

Simulations of anti-parallel reconnection using a nonlocal heat flux closure

The integration of kinetic effects in fluid models is important for global simulations of the Earth's magnetosphere. In particular, it has been shown that ion kinetics play a crucial role in the

Effect of Radiation on Chromospheric Magnetic Reconnection: Reactive and Collisional Multi-fluid Simulations

We study magnetic reconnection under chromospheric conditions in five different ionization levels from 0.5% to 50% using a self-consistent two-fluid (ions + neutrals) model that accounts for

Small-scale structure of two-dimensional magnetohydrodynamic turbulence

The formation of singularities in two-dimensional magnetohydrodynamic flow is investigated by direct numerical simulation. It is shown that two-dimensional magnetohydrodynamic turbulence is not as

The ∇·B=0 Constraint in Shock-Capturing Magnetohydrodynamics Codes

Based on a large number of tests, the projection scheme, one of the new central difference based schemes, and the constrained transport schemes are found to be the most accurate and reliable among the examined methods.