Results 21 to 30 of about 373,804 (364)

Measurements of wind turbulence parameters by a conically scanning coherent Doppler lidar in the atmospheric boundary layer [PDF]

open access: yesAtmospheric Measurement Techniques, 2017
The method and results of lidar studies of spatiotemporal variability of wind turbulence in the atmospheric boundary layer are reported. The measurements were conducted by a Stream Line pulsed coherent Doppler lidar (PCDL) with the use of conical ...
I. N. Smalikho, V. A. Banakh
doaj   +1 more source

Turbulence in the near-Venusian space: Venus Express observations

open access: yesEarth and Planetary Physics, 2020
With Venus Express magnetic field measurements at 32 Hz from 2006 to 2012, we investigate statistically the magnetic fluctuations in the near-Venusian space.
SuDong Xiao   +5 more
doaj   +1 more source

Turbulent Kinetic Energy in the Energy Balance of a Solar Flare [PDF]

open access: yesPhysical Review Letters, 2017
The energy released in solar flares derives from a reconfiguration of magnetic fields to a lower energy state, and is manifested in several forms, including bulk kinetic energy of the coronal mass ejection, acceleration of electrons and ions, and enhanced thermal energy that is ultimately radiated away across the electromagnetic spectrum from optical ...
Kontar, E.P.   +7 more
openaire   +7 more sources

Data-driven decomposition of the streamwise turbulence kinetic energy in boundary layers. Part 2. Integrated energy and $A_{1}$ [PDF]

open access: yesJournal of Fluid Mechanics, 2018
Scalings of the streamwise velocity energy spectra in turbulent boundary layers were considered in Part 1 (Baars & Marusic, J. Fluid Mech., vol. 882, 2020, A25). A spectral decomposition analysis provided a means to separate out attached and non-attached
W. Baars, I. Marusic
semanticscholar   +1 more source

Anisotropic Energy Transfer and Conversion in Magnetized Compressible Turbulence

open access: yesThe Astrophysical Journal, 2023
We present a spatial filtering (or coarse-graining) analysis on 3D magnetized magnetohydrodynamic (MHD) turbulence simulations. The filtered compressible MHD formulae show transfer of kinetic and magnetic energies from large to small scales, as well as ...
Senbei Du   +3 more
doaj   +1 more source

Anisotropy of Solar Wind Turbulence in the Inner Heliosphere at Kinetic Scales: PSP Observations [PDF]

open access: yes, 2021
The anisotropy of solar wind turbulence is a critical issue in understanding the physics of energy transfer between scales and energy conversion between fields and particles in the heliosphere.
D. Duan   +7 more
semanticscholar   +1 more source

A physical-space version of the stretched-vortex subgrid-stress model for large-eddy simulation [PDF]

open access: yes, 2000
A physical-space version of the stretched-vortex subgrid-stress model is presented and applied to large-eddy simulations of incompressible flows. This version estimates the subgrid-kinetic energy required for evaluation of the subgrid-stress tensor using
Chan, Daniel C.   +2 more
core   +2 more sources

Lidar Studies of Wind Turbulence in the Stable Atmospheric Boundary Layer

open access: yesRemote Sensing, 2018
The kinetic energy of turbulence, the dissipation rate of turbulent energy, and the integral scale of turbulence in the stable atmospheric boundary layer at the location heights of low-level jets (LLJs) have been measured with a coherent Doppler light ...
Viktor A. Banakh, Igor N. Smalikho
doaj   +1 more source

Estimating Turbulence Kinetic Energy Dissipation Rates in the Numerically Simulated Stratocumulus Cloud-Top Mixing Layer: Evaluation of Different Methods

open access: yesJournal of the Atmospheric Sciences, 2019
In this work, direct numerical simulation (DNS) of the stratocumulus cloud-top mixing layer is used to test various approaches to estimate the turbulence kinetic energy (TKE) dissipation rate ε from one-dimensional (1D) intersections that resemble ...
Emmanuel O. Akinlabi   +3 more
semanticscholar   +1 more source

Fuzzy Performance between Surface Fitting and Energy Distribution in Turbulence Runner

open access: yesThe Scientific World Journal, 2012
Because the application of surface fitting algorithms exerts a considerable fuzzy influence on the mathematical features of kinetic energy distribution, their relation mechanism in different external conditional parameters must be quantitatively analyzed.
Zhongwei Liang   +3 more
doaj   +1 more source

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