Results 81 to 90 of about 32,327 (219)

Energy spectrum of turbulent fluctuations in boundary driven reduced magnetohydrodynamics

, 2003
The nonlinear dynamics of a bundle of magnetic flux ropes driven by stationary fluid motions at their endpoints is studied, by performing numerical simulations of the magnetohydrodynamic (MHD) equations.
Daniel O. Gómez, Dmitruk P., Galsgaard K., Grappin R., Gómez D. O., Hendrix D. L., Hendrix D. L., Iroshnikov P. S., Kolmogorov A. N., Mandrini C. H., Matthaeus W. H., Milano L., Pablo Dmitruk, William H. Matthaeus   +13 more
core   +1 more source

Numerical and Intelligent Modeling of MHD Casson Nanofluid Heat Transfer in Fractal Porous Cavities for Energy Systems

Engineering Reports, Volume 8, Issue 4, April 2026.
This study demonstrates that Al2O3–GNP hybrid nanofluids significantly enhance heat transfer in porous rectangular enclosures. Magnetic fields suppress velocity but raise temperature, while higher Biot and Brinkman numbers improve Nusselt number and entropy generation, highlighting effective thermal control in non‐Newtonian HNF systems.
Wajid Ullah, Muhammad Salim Khan, Zahir Shah, Aseel Smerat, Meshal Shutaywi   +4 more
wiley   +1 more source

Spatial structure of azimuthally small-scale MHD waves in one-dimensionally inhomogeneous finite pressure plasma with curved field lines

Solar-Terrestrial Physics, 2020
We have studied propagation of hydromagnetic (MHD) waves in one-dimensionally inhomogeneous finite pressure plasma with curved field lines. Magnetic surfaces are considered to be concentric cylinders, where the cylinder’s radius models the radial ...
Petrashchuk A.V., Klimushkin D.Yu.
doaj   +1 more source

Natural Convective Heat and Mass Transfer Flow in a Doubly Stratified High Porosity Medium

Engineering Reports, Volume 8, Issue 4, April 2026.
•$$ \bullet $$ Investigates natural convection of mass and heat in a high‐porosity doubly stratified medium. •$$ \bullet $$ Transforms non‐linear coupled partial differential equations into a non‐dimensional system for analysis. •$$ \bullet $$ Comprehensive analysis of stability and convergence criteria ensures solution accuracy. •$$ \bullet $$ Visuals
Abdullah Ahmed Foisal, Md. Mainul Islam, Muhammad Shakhawat Hossain, Silvia Sifath, Md. Azam Khan Muzahid, Md Akimul Islam Saikat   +5 more
wiley   +1 more source

Evolutionary Conditions in the Dissipative MHD System Revisited

, 2007
The evolutionary conditions for the dissipative continuous magnetohydrodynamic (MHD) shocks are studied. We modify Hada's approach in the stability analysis of the MHD shock waves.
Inoue, Tsuyoshi, Inutsuka, Shu-ichiro
core   +1 more source

Quantitative Confounder Analysis of Electrocardiogram Signals in Cardiac Magnetic Resonance at 1.5, 3 and 7 T—Assessing Standardized Electrode Positions and Sequence Types—Towards Quality Assurance

Journal of Magnetic Resonance Imaging, Volume 63, Issue 4, Page 1140-1154, April 2026.
ABSTRACT Background The electrocardiogram (ECG) used for gating in cardiac MRI may be compromised by multiple confounders inside the scanner bore. Purpose To quantify the influence of magnetic field strengths (1.5 T/3 T/7 T), standardized electrode positions, and imaging sequences on ECG signals used for gating. Study Type Prospective.
Richard Hickstein, Stephanie Wiesemann, Darian Viezzer, Denise Kleindienst, Teodora Chitiboi, Bogdan Andrei Gheorghita, Jens Wetzl, Thomas Hadler, Sebastian Dietrich, Sebastian Schmitter, Jeanette Schulz‐Menger   +10 more
wiley   +1 more source

3D Magnetohydrodynamic Wave Propagation and Energy Transport in a Simulated Solar Vortex

The Astrophysical Journal
Magnetic flux tubes in the presence of background rotational flows are abundant throughout the solar atmosphere and may act as conduits for MHD waves to transport energy throughout the solar atmosphere. Here we investigate the contribution from MHD waves
Samuel J. Skirvin, Viktor Fedun, Gary Verth, Istvan Ballai   +3 more
doaj   +1 more source

Remarks on nonlinear relation among phases and frequencies in modulational instabilities of parallel propagating Alfvén waves [PDF]

Nonlinear Processes in Geophysics, 2006
Nonlinear relations among frequencies and phases in modulational instability of circularly polarized Alfvén waves are discussed, within the context of one dimensional, dissipation-less, unforced fluid system. We show that generation of phase coherence is
Y. Nariyuki, T. Hada
doaj  

Standing Slow MHD Waves in Radiatively Cooling Coronal Loops

, 2015
The standing slow magneto-acoustic oscillations in cooling coronal loops are investigated. There are two damping mechanisms which are considered to generate the standing acoustic modes in coronal magnetic loops namely thermal conduction and radiation ...
Al-Ghafri, Khalil Salim
core   +1 more source

Synergistic Effects of Internal and External Magnetic Fields in Electrocatalysis

SmartMat, Volume 7, Issue 2, April 2026.
In this review, we provide an overview of internal and external magnetic fields in electrocatalysis, highlighting their synergistic effects to hydrogen evolution reaction (HER), oxygen evolution reaction (OER), carbon dioxide reduction reaction (CO2RR), and nitrogen reduction reaction (NRR).
Ziyu Yang, Tong Wu, Hui Tang, Rui Wang, Jibing Chen, Ch. Venkata Reddy, Jaesool Shim, Mohamed S. Hamdy, Asmaa Farouk, Xuping Sun   +9 more
wiley   +1 more source