Results 71 to 80 of about 14,504 (190)
Force-free Wave Interaction in Magnetar Magnetospheres: Computational Modeling in Axisymmetry
The Astrophysical JournalCrustal quakes of highly magnetized neutron stars can disrupt their magnetospheres, triggering energetic phenomena like X-ray and fast radio bursts. Understanding plasma wave dynamics in these extreme environments is vital for predicting energy transport
Jens F. Mahlmann +2 more
doaj +1 more source
A new method to compute quasi-local spin and other invariants on marginally trapped surfaces
, 2009 We accurately compute the scalar 2-curvature, the Weyl scalars, associated quasi-local spin, mass and higher multipole moments on marginally trapped surfaces in numerical 3+1 simulations.
Jasiulek, Michael
core +1 more source
Identification of important error fields in stellarators using Hessian matrix method [PDF]
, 2019 Error fields are predominantly attributed to inevitable coil imperfections. Controlling error fields during coil fabrication and assembly is crucial for stellarators.
127313 +13 more
core +3 more sources
Ion temperature gradient turbulence modification in quasi-axisymmetry [PDF]
Physics of Plasmas, 2019 The large flexibility of the proposed QUASAR facility [Gates et al., Nucl. Fusion 57, 126064 (2017)] is leveraged in order to explore the effect of magnetic shear on adiabatic Ion Temperature Gradient (ITG) turbulence. The QUASAR facility is a reimagining of the National Compact Stellarator Experiment utilizing and expanding upon the already ...
Samuel A. Lazerson +3 more
openaire +2 more sources
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 +3 more
wiley +1 more source
SymmPi: Exploiting Symmetry Removal for Fast Subgraph Matching
Data Science and EngineeringSymmetry, a phenomenon of self-similarity, is common in many networks, which often incurs a lot of redundant accesses and computations, even duplicate results when executing graph matching tasks. Many approaches (e.g.
Yujiang Wang +4 more
doaj +1 more source
Physical Review Accelerators and Beams, 2018 Laser wakefield acceleration of electrons usually offers an axisymmetry around the laser propagation axis. Thus, the accelerating electrons that are focused on axis often execute small transverse oscillations.
J. Ferri, X. Davoine
doaj +1 more source
Energetic particle optimization of quasi-axisymmetric stellarator equilibria
Nuclear Fusion, 2022 An important goal of stellarator optimization is to achieve good confinement of energetic particles such as, in the case of a reactor, alphas created by deuterium–tritium fusion. In this work, a fixed-boundary stellarator equilibrium was re-optimized for
Alexandra LeViness +6 more
doaj +1 more source
Topological defect formation in quenched ferromagnetic Bose-Einstein condensates
, 2006 We study the dynamics of the quantum phase transition of a ferromagnetic spin-1 Bose-Einstein condensate from the polar phase to the broken-axisymmetry phase by changing magnetic field, and find the spontaneous formation of spinor domain walls followed ...
E. A. Kuznetsov +5 more
core +1 more source
Nonequilibrium scalings of turbulent wakes [PDF]
, 2016 Nonequilibrium turbulent wake scalings are not the preserve of irregular (fractal-like/multiscale) plates but appear to be universal, as they also hold for regular plates over a very substantial downstream ...
Dairay, T, Obligado, M, Vassilicos, JC
core +3 more sources