Results 41 to 50 of about 5,989 (213)

On the Behavior of Two C1 Finite Elements Versus Anisotropic Diffusion

International Journal for Numerical Methods in Fluids, Volume 97, Issue 12, Page 1541-1557, December 2025.
Bi‐cubic Hemite‐Bézier and reduced cubic Hsieh‐Clough‐Tocher finite elements, of class C1, are compared for the solution of a highly anisotropic diffusion equation. They are tested numerically for various ratios of the diffusion coefficients on different meshes, even aligned with the anisotropy.
Blaise Faugeras, Hervé Guillard, Boniface Nkonga, Francesca Rapetti   +3 more
wiley   +1 more source

Motion and equilibrium of a spheromak in a toroidal flux conserver [PDF]

, 1991
A number of experiments have been performed on spheromaks injected into the empty vacuum vessel of the Caltech ENCORE tokamak (i.e., without tokamak plasma) [Phys. Rev. Lett. 64, 2144 (1990); Phys. Fluids B 2, 1306 (1990)].
Bellan, P. M., Brown, M. R., Cutrer, D. M.   +2 more
core   +1 more source

Reducing turbulent transport in tokamaks by combining intrinsic rotation and the low momentum diffusivity regime

Nuclear Fusion
Based on the analysis of a large number of high-fidelity nonlinear gyrokinetic simulations, we propose a novel strategy to improve confinement in spherical tokamak plasmas by combining up-down asymmetric flux surface shaping with the Low Momentum ...
Haomin Sun, Justin Ball, Stephan Brunner, Anthony Field, Bhavin Patel, Daniel Kennedy, Colin Roach, Diego Jose Cruz-Zabala, Fernando Puentes Del Pozo, Eleonora Viezzer, Manuel Garcia Munoz   +10 more
doaj   +1 more source

Advancements in Tokamak Technology for Fusion Energy: A Bibliometric and Patent Trend Analysis (2014–2024)

Energies
Tokamak technology, as the cornerstone of nuclear fusion energy, holds immense potential in achieving efficient plasma confinement and high energy densities.
Horng Jinh Chang, Shih Wei Wang
doaj   +1 more source

The Solar Wind Interaction With an Orbiting Venus

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract Studies of the large‐scale interaction of the solar wind with planets have often been considered along the line of the sun to the planet, neglecting the planet's orbital motion. This paper describes a new refinement in the long history of Venus simulations, the addition of the planet's orbital motion.
Stephen H. Brecht, Stephen A. Ledvina
wiley   +1 more source

Dust-driven Dynamos in Accretion Disks [PDF]

, 2008
Magnetically driven astrophysical jets are related to accretion and involve toroidal magnetic field pressure inflating poloidal magnetic field flux surfaces.
Chrysostomou A., Cowling T. G., Ellison D. C., Ferreira J., Gloeckler G., Jarboe T. R., Lynden-Bell D., P. M. Bellan, Rome J. A., Shakura N. I., Zelenyi L. M.   +10 more
core   +4 more sources

MHD-FiT: MHD-based dynamic reconstruction of tokamak plasma configuration

Nuclear Fusion
This paper introduces an innovative method for reconstructing 2D magnetic flux contours and plasma parameters of dynamically moving tokamak plasmas.
T. Ahmadi, Y. Ono, Y. Cai, H. Tanabe
doaj   +1 more source

A h‐Adaptivity Strategy for Hybridizable Discontinuous Galerkin (HDG) Simulations of Fluid Transport Models in Tokamak Plasma

International Journal for Numerical Methods in Engineering, Volume 126, Issue 17, 15 September 2025.
ABSTRACT The highly anisotropic, multi‐scale nature of fusion plasma simulations in tokamaks, combined with the complexity in the geometries of plasma‐facing components and magnetic equilibrium, challenges numerical schemes. They therefore require the development of advanced numerical techniques to enhance computational efficiency and enable codes to ...
Marcello Capasso, Ivan Kudashev, Frédéric Schwander, Éric Serre   +3 more
wiley   +1 more source

A Spinning Mirror for Fast Angular Scans of EBW Emission for Magnetic Pitch Profile Measurement

, 2010
A tilted spinning mirror rapidly steers the line of sight of the electron Bernstein wave (EBW) emission radiometer at the Mega Amp Spherical Tokamak (MAST).
Francesco Volpe, Shevchenko V.
core   +1 more source

Kinetic-ballooning-limited pedestals in spherical tokamak plasmas

Nuclear Fusion
A theoretical model is presented that for the first time matches experimental measurements of the pedestal width-height Diallo scaling in the low-aspect-ratio high- β tokamak NSTX.
J.F. Parisi, W. Guttenfelder, A.O. Nelson, R. Gaur, A. Kleiner, M. Lampert, G. Avdeeva, J.W. Berkery, C. Clauser, M. Curie, A. Diallo, W. Dorland, S.M. Kaye, J. McClenaghan, F.I. Parra   +14 more
doaj   +1 more source