Results 81 to 90 of about 43,251 (230)

Formation of Fine Structures in Incompressible Hall Magnetohydrodynamic Turbulence Simulations

open access: yesPlasma
Hall magnetohydrodynamic simulations are often carried out to study the subjects of instabilities and turbulence of space and nuclear fusion plasmas in which sub-ion-scale effects are important.
Hideaki Miura
doaj   +1 more source

Determination of the decay exponent in mechanically stirred isotropic turbulence

open access: yesAIP Advances, 2011
Direct numerical simulation is used to investigate the decay exponent of isotropic homogeneous turbulence over a range of Reynolds numbers sufficient to display both high and low Re number decay behavior.
J. Blair Perot
doaj   +1 more source

Pair reversal in homogeneous isotropic turbulence

open access: yesJournal of Physics: Conference Series, 2011
We show that the separation of particle pairs in the inertial subrange of homogeneous isotropic turbulence is strongly influenced by the pairs that separate quasi-diffusively. We quantify the influence of the diffusive separators by considering the probability that a pair will 'reverse' direction across a given separation i.e.
B J Devenish, D J Thomson
openaire   +1 more source

A Review of Black Phosphorus‐Based Materials: From Preparation Strategies to Characterization Techniques

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 4, July 2026.
The structure, properties, preparation methods, and characterization techniques of BP. As a typical 2D layered material, black phosphorus (BP) demonstrates exceptional promise in various fields, particularly in energy storage for alkali metal‐ion batteries. However, its distinctive structure and properties, together with the compositional complexity of
Yunqing Wang   +7 more
wiley   +1 more source

Particle-resolved direct numerical simulation of homogeneous isotropic turbulence modified by small fixed spheres

open access: yesJournal of Fluid Mechanics, 2016
A statistically stationary homogeneous isotropic turbulent flow modified by 64 small fixed non-Stokesian spherical particles is considered. The particle diameter is approximately twice the Kolmogorov length scale, while the particle volume fraction is 0 ...
A. W. Vreman
semanticscholar   +1 more source

On the Cell Broadening of Mesoscale Cellular Convection in a Well‐Mixed Boundary Layer

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 7, July 2026.
Abstract Understanding what controls the horizontal scale of mesoscale cellular convection is central to explaining cloud self‐organization and its radiative impacts. Using a hierarchy of large‐eddy simulations, we investigate cell broadening in a well‐mixed boundary layer by isolating the roles of radiation, cloud microphysics, and water vapor.
Xiaoran Ouyang   +5 more
wiley   +1 more source

Energy Dependence of Energetic Electron Precipitation Rates Near the Foot of Electron Isotropy Boundary

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We report a rare quiet‐time observation by NOAA‐18 spacecraft flying nearly along the electron isotropy boundary (IBe). Complemented by data from four nearby meridional IBe crossings of other POES spacecraft, this case study provides a novel quantitative information concerning the regular energy dependence of the loss‐cone filling ratio (Jprec/
V. A. Sergeev   +5 more
wiley   +1 more source

Active Scalar mixing by homogeneous isotropic turbulence

open access: yesPhysica D: Nonlinear Phenomena
We study the mixing of active scalars by homogeneous isotropic incompressible stochastic velocity fields. We consider both Navier-Stokes generated turbulent fields as well as artificially generated homogeneous isotropic stochastic fields. We use Fourier pseudospectral direct numerical simulations to study the mixing dynamics of two non-reacting species
Jossy, Joaquim P.   +2 more
openaire   +2 more sources

Vortex stretching in a homogeneous isotropic turbulence

open access: yesJournal of Physics: Conference Series, 2017
Stretching vortices whose sizes are in the inertial subrange of a homogeneous isotropic turbulence are picked up, and the geometric relations with the neighboring vortices whose scales are twice larger are studied. Hierarchical vortices are extracted using a Fourier band-pass filter, and each extracted vortex is reconstructed as a set of short ...
M Hirota, Y Nishio, S Izawa, Y Fukunishi
openaire   +1 more source

Large Eddy Simulations of the Atmospheric Boundary Layer Over Satellite‐Sensed Sea Ice Maps

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 11, 16 June 2026.
Abstract Surface heterogeneity in the marginal ice zone (MIZ) causes multiscale secondary atmospheric circulations that are challenging to model or observe. The absence or inadequate representation of these circulations in ocean‐atmosphere exchange schemes in climate models is partially responsible for the underestimation of Arctic sea ice loss ...
Joseph Fogarty   +5 more
wiley   +1 more source

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