Results 61 to 70 of about 18,505 (161)

Entropy Stable Finite Volume Approximations for Ideal Magnetohydrodynamics

, 2017
This article serves as a summary outlining the mathematical entropy analysis of the ideal magnetohydrodynamic (MHD) equations. We select the ideal MHD equations as they are particularly useful for mathematically modeling a wide variety of magnetized ...
Derigs, Dominik, Gassner, Gregor J., Walch, Stefanie, Winters, Andrew R.   +3 more
core   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

Analyticity of the global attractor for the 3D regularized MHD equations

Electronic Journal of Differential Equations, 2016
We study the three-dimensional (3D) regularized magnetohydrodynamics (MHD) equations. Using the method of splitting of the asymptotic approximate solutions into higher and lower Fourier components, we prove that the global attractor of the 3D ...
Caidi Zhao, Bei Li
doaj  

Electromagnetic Field Effects in Dialysis Membranes

Engineering Reports, Volume 8, Issue 5, May 2026.
Hemodialysis efficiency strongly depends on membrane permeability, solute transport, and blood flow characteristics. External electromagnetic fields (magnetic and electric) can alter fluid dynamics, ionic motion, and nanoparticle‐assisted transport mechanisms within dialysis membranes.
Binyam Zigta
wiley   +1 more source

Direct Numerical Simulation of Magnetohydrodynamic Slip‐Flow Past a Stretching Surface Using Physics‐Informed Neural Network

Heat Transfer, Volume 55, Issue 3, Page 1674-1682, May 2026.
ABSTRACT Traditional numerical methods, such as finite difference methods (FDM), finite element methods (FEM), and spectral methods, often face meshing challenges and high computational cost for solving nonlinear coupled differential equations. Machine learning techniques, specifically Physics‐informed machine learning, address these obstacles by ...
Ahmad, Feroz Soomro, Husna Zafar
wiley   +1 more source

Physical Constraint Preserving Higher-order Finite Volume Schemes for Divergence-free Astrophysical MHD and RMHD

The Astrophysical Journal
Higher-order finite volume schemes for magnetohydrodynamics (MHD) and relativistic magnetohydrodynamics (RMHD) are very valuable because they allow us to carry out astrophysical simulations with very high accuracy.
Dinshaw S. Balsara, Deepak Bhoriya, Chetan Singh, Harish Kumar, Roger Käppeli, Federico Gatti   +5 more
doaj   +1 more source

Smoothed Particle Magnetohydrodynamics II. Variational principles and variable smoothing length terms

, 2003
In this paper we show how a Lagrangian variational principle can be used to derive the SPMHD (smoothed particle magnetohydrodynamics) equations for ideal MHD.
Balsara, Benz, Bonet, Brio, D. J. Price, Dai, Dai, Dellar, Field, Henyey, Hernquist, J. J. Monaghan, Janhunen, Monaghan, Monaghan, Monaghan, Monaghan, Morris, Nelson, Nelson, Newcomb, Oppeneer, Phillips, Price, Serna, Springel   +25 more
core   +1 more source

Impact Plasma Amplification of the Ancient Mercury Magnetic Field

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Spacecraft measurements of Mercury indicate that it has a core dynamo with a surface field of 200–800 nT. These data also indicate that the northern hemisphere crust contains remanent magnetization likely produced by an ancient magnetic field. The inferred magnetization intensity is consistent with a wide range of paleofield strengths (0.2–50 ...
Isaac S. Narrett, Rona Oran, Yuxi Chen, Katarina Miljković, Gábor Tóth, Catherine L. Johnson, Benjamin P. Weiss   +6 more
wiley   +1 more source

Constrained Hyperbolic Divergence Cleaning for Smoothed Particle Magnetohydrodynamics

, 2012
We present a constrained formulation of Dedner et al's hyperbolic/parabolic divergence cleaning scheme for enforcing the \nabla\dot B = 0 constraint in Smoothed Particle Magnetohydrodynamics (SPMHD) simulations.
Barnes, Benz, Brackbill, Børve, Børve, Bürzle, Cummins, Daniel J. Price, Dedner, Dellar, Dolag, Evans, Fromang, Gaburov, Janhunen, Kotarba, Kotarba, Kotarba, Londrillo, Mignone, Monaghan, Monaghan, Orszag, Pakmor, Powell, Price, Price, Price, Price, Price, Price, Price, Price, Price, Price, Price, Price, Stern, Stone, Terrence S. Tricco, Tóth, Wang   +41 more
core   +1 more source

Nonlinear Gyrokinetic Simulation of the Magnetosphere‐Ionosphere Feedback Coupling

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract A nonlinear gyrokinetic simulation is applied to the magnetosphere‐ionosphere (M‐I) coupling system to investigate spontaneous growth of auroral structures and electron acceleration self‐consistently. Perturbations of electron density, potential and field‐aligned current in the auroral ionosphere develop through the feedback instability ...
T.‐H. Watanabe, K. Fujita, S. Maeyama
wiley   +1 more source