Results 91 to 100 of about 33,678 (214)

Avalanches in magnetohydrodynamical simulations

Physical Review E
Scale invariance is a hallmark of many natural systems, including solar flares, where energy release spans a vast range of scales. Recent computational advances, at the level of both algorithmics and hardware, have enabled high-resolution magnetohydrodynamical (MHD) simulations to span multiple scales, offering new insights into magnetic energy ...
Lamarre, Henri, Charbonneau, Paul, Noraz, Quentin, Strugarek, Antoine, Blaise, Alexis, Brun, Allan Sacha, Carlsson, Mats, Gudiksen, Boris Vilhelm   +7 more
openaire   +3 more sources

Open Magnetic Field Lines Partition Auroral Oval Segments Into Transpolar Arcs

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Transpolar arcs (TPAs) are auroral structures spanning the polar cap. One type appears in conjugate hemispheres and is thought to be located on closed field lines, but how closed flux enters the open polar cap remains debated. We address this using observation and simulation of conjugate TPAs after an interplanetary magnetic field (IMF) By ...
Xin‐Ming Chen, Zan‐Yang Xing, Qing‐He Zhang, Hui‐Gen Yang, L. R. Lyons, K. Oksavik, Yong‐Liang Zhang, S. E. Milan, Xiang‐Yu Wang, Yu‐Zhang Ma, Yong Wang, Lu Sheng, Duan Zhang, Zhi‐Feng Xiu, Bian‐Long Zhao   +14 more
wiley   +1 more source

Physics‐Informed Neural Networks for Modeling the Martian Induced Magnetosphere

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Understanding the magnetic field environment around Mars and its response to upstream solar wind conditions provide key insights into the processes driving atmospheric ion escape. To date, global models of Martian induced magnetosphere have been exclusively physics‐based, relying on computationally intensive simulations. For the first time, we
Jiawei Gao, Chuanfei Dong, Chi Zhang, Yilan Qin, Simin Shekarpaz, Xinmin Li, Liang Wang, Hongyang Zhou, Abigail Tadlock   +8 more
wiley   +1 more source

Thermal performance enhancement in a hexagonal cavity filled with hybrid nanofluid and a steering-shaped insertion

Frontiers in Energy Research
BackgroundSteering-shaped obstacles are extensively used in various thermal engineering applications, including heat exchangers, transformers, semiconductors, microelectronics, chemical sensors, air-cooled engines, gas turbines, automotive radiators, and
Bijan Krishna Saha, Goutam Barai, Nithan Majumdar, Md. Aslam Hossain, Goutam Saha, Goutam Saha, Suvash C. Saha   +6 more
doaj   +1 more source

New quantum effects in relativistic magnetohydrodynamics

, 2017
Chiral anomaly induces a new kind of macroscopic quantum behavior in relativistic magnetohydrodynamics, including the chiral magnetic effect. In this talk we present two new quantum effects present in fluids that contain charged chiral fermions: 1) the ...
Hirono, Yuji, Kharzeev, Dmitri E., Yin, Yi   +2 more
core   +1 more source

Plasma Stability in Turbulent Magnetic Flux Ropes Downstream of a Collisionless Shock

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract How pre‐existing solar wind turbulence, and coherent structures such as magnetic flux ropes within it, influence the transition of plasma across a shock is still poorly understood. Recently, in situ observations from the Earth's magnetosheath have been used to study plasma stability against ion kinetic instabilities. In the turbulent flow, the
L. Vuorinen, D. Burgess, F. Koller, D. Trotta   +3 more
wiley   +1 more source

An Augmented Lagrangian Preconditioner for Navier–Stokes Equations With Runge–Kutta in Time

Numerical Linear Algebra with Applications, Volume 33, Issue 3, June 2026.
ABSTRACT We consider an implicit Runge–Kutta method for the numerical time integration of the nonstationary incompressible Navier–Stokes equations. This yields a sequence of nonlinear problems to be solved for the stages of the Runge–Kutta method. The resulting nonlinear system of differential equations is discretized using a finite element method.
Santolo Leveque, Yunhui He, Maxim Olshanskii   +2 more
wiley   +1 more source

Nonlinear Evolution of Auroral Fine Structures Through the Feedback Instability in a Dipole Field Configuration

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract Nonlinear simulations of the feedback instability in the Alfvénic magnetosphere‐ionosphere (M‐I) coupling system have been carried out by means of the reduced magnetohydrodynamic (MHD) equations with spatially non‐uniform kinematic viscosity and resistivity, coupled with two‐fluid equations, in order to investigate auroral fine‐structure ...
T. Sakaki, T.‐H. Watanabe
wiley   +1 more source

Positivity-Preserving Finite Difference WENO Schemes with Constrained Transport for Ideal Magnetohydrodynamic Equations [PDF]

, 2015
In this paper, we utilize the maximum-principle-preserving flux limiting technique, originally designed for high order weighted essentially non-oscillatory (WENO) methods for scalar hyperbolic conservation laws, to develop a class of high order ...
Christlieb, Andrew J., Liu, Yuan, Tang, Qi, Xu, Zhengfu   +3 more
core  

Magnetohydrodynamics

Scholarpedia, 2007
Molokov, S., Moreau, R., Moffatt, H.K.
  +4 more sources