Results 51 to 60 of about 7,781 (181)

ERF: Energy Research and Forecasting Model

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 11, November 2025.
Abstract High performance computing (HPC) architectures have undergone rapid development in recent years. As a result, established software suites face an ever increasing challenge to remain performant on and portable across modern systems. Many of the widely adopted atmospheric modeling codes cannot fully (or in some cases, at all) leverage the ...
Aaron Lattanzi, Ann Almgren, Eliot Quon, Mahesh Natarajan, Branko Kosovic, Jeffrey Mirocha, Bruce Perry, David Wiersema, Donald Willcox, Xingqiu Yuan, Weiqun Zhang   +10 more
wiley   +1 more source

Anisotropic Cosmic Ray Diffusion and its Implications for Gamma-Ray Astronomy

, 2013
Analyses of TeV-PeV cosmic ray (CR) diffusion around their sources usually assume either isotropic diffusion or anisotropic diffusion due to the regular Galactic magnetic field. We show that none of them are adequate on distances smaller than the maximal
Giacinti, G., Kachelriess, M., Semikoz, D. V.   +2 more
core   +3 more sources

The Stratified Ocean Model With Adaptive Refinement (SOMARv2)

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 11, November 2025.
Abstract Numerical studies of submesoscale ocean dynamics are restricted by several challenges, including its vast range of scales, nonhydrostatic features, and strong anisotropy. The Stratified Ocean Model with Adaptive Refinement (SOMAR) was developed to address many of these issues.
Edward Santilli, Yun Chang, Alberto Scotti   +2 more
wiley   +1 more source

Three‐Dimensional Anisotropy of Turbulence at Ion‐Scales in the Magnetotail's Bursty Bulk Flow

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract Using the data from Magnetospheric Multiscale mission, we statistically investigate the anisotropy of turbulence within bursty bulk flows (BBFs) in the Earth's magnetotail. By computing five‐point second‐order structure functions, we reveal the three‐dimensional anisotropy and scaling properties of turbulence at ion scales.
Y. T. Tang, S. Y. Huang, J. Zhang, Z. G. Yuan, H. H. Wu, K. Jiang, Q. Y. Xiong, H. Bai   +7 more
wiley   +1 more source

Constraining the properties of the magnetic turbulence in the Geminga region using HAWC $\gamma$-ray data

, 2017
Observations of extended gamma-ray emission around Galactic cosmic-ray (CR) sources can be used as novel probes of interstellar magnetic fields. Using very-high-energy gamma-ray data from the HAWC Observatory, we place constraints on the properties of ...
Giacinti, Gwenael, López-Coto, Rubén
core   +1 more source

Direct Numerical Simulations of Low-$Rm$ MHD turbulence based on the least dissipative modes [PDF]

, 2010
We present a new spectral method for the Direct Numerical Simulation of Magnetohydrodynamic turbulence at low Magnetic Reynolds number. The originality of our approach is that instead of using traditional bases of functions, it relies on the basis of ...
ALBAN POTHÉRAT, Alemany, Canuto, Davidson, Delannoy, Frisch, Kolmogorov, Orszag, Roberts, Rogallo, VITALI DYMKOU   +10 more
core   +2 more sources

Spiral spectrum of a Laguerre-Gaussian beam propagating in anisotropic non-Kolmogorov turbulent atmosphere along horizontal path

Optics Express, 2019
Close to the ground, it is generally known that atmospheric turbulence exhibits strong anisotropy, which affects the performance of applications such as free-space optical (FSO) communication. In this paper, we establish a theoretical model for calculating the spiral spectrum, also called the orbital angular momentum (OAM) spectrum, of a Laguerre ...
Jun Zeng, Xianlong Liu, Chengliang Zhao, Fei Wang, Greg Gbur, Yangjian Cai   +5 more
openaire   +2 more sources

Turbulence‐resolving simulations of Hurricane Laura (2020): Insights into extreme winds and eyewall turbulence

Quarterly Journal of the Royal Meteorological Society, Volume 151, Issue 773, October 2025 Part B.
Using high‐resolution turbulence‐resolving simulations, we analyze the wind structure in the eyewall of Hurricane Laura (2020) and validate the results with observational data. Our findings show significant variations in wind speed and turbulence, especially above 50 m.
Miguel Sanchez‐Gomez, Georgios Deskos, Julie K. Lundquist   +2 more
wiley   +1 more source

Statistical analysis of the velocity and scalar fields in reacting turbulent wall-jets

, 2015
The concept of local isotropy in a chemically reacting turbulent wall-jet flow is addressed using direct numerical simulation (DNS) data. Different DNS databases with isothermal and exothermic reactions are examined.
A. V. Johansson, Boersma B. J., Frisch U., L. Biferale, Monin A. S., Pouransari Z., Pouransari Z., Z. Pouransari   +7 more
core   +1 more source

Relativistic Fermi acceleration with shock compressed turbulence [PDF]

, 2005
This paper presents numerical simulations of test particle Fermi acceleration at relativistic shocks of Lorentz factor Gamma_sh = 2-60, using a realistic downstream magnetic structure obtained from the shock jump conditions.
Lemoine, Martin, Revenu, Benoit
core   +5 more sources