Results 31 to 40 of about 954,404 (186)
Journal of turbulence, 2019 A description of the turbulence kinetic energy budget is investigated to understand the dynamics and turbulence energy transfer between the atmospheric boundary layer and large wind farms.
N. Ali, N. Hamilton, M. Calaf, R. B. Cal
semanticscholar +1 more source
Turbulent drag reduction in magnetohydrodynamic and quasi-static magnetohydrodynamic turbulence [PDF]
, 2020 In hydrodynamic turbulence, the kinetic energy injected at large scales cascades to the inertial range, leading to a constant kinetic energy flux. In contrast, in magnetohydrodynamic (MHD) turbulence, a fraction of kinetic energy is transferred to the magnetic energy.
arxiv +1 more source
Lidar Studies of Wind Turbulence in the Stable Atmospheric Boundary Layer
Remote 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
Journal 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
Sudden viscous dissipation of compressing turbulence [PDF]
Phys. Rev. Lett. 116, 105004 (2016), 2015 Compression of turbulent plasma can amplify the turbulent kinetic energy, if the compression is fast compared to the viscous dissipation time of the turbulent eddies. A sudden viscous dissipation mechanism is demonstrated, whereby this amplified turbulent kinetic energy is rapidly converted into thermal energy, suggesting a new paradigm for fast ...
arxiv +1 more source
Fuzzy Performance between Surface Fitting and Energy Distribution in Turbulence Runner
The 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
Scaling the Decay of Turbulence Kinetic Energy in the Free-Convective Boundary Layer
Boundary-layer Meteorology, 2019 We investigate the scaling for decaying turbulence kinetic energy (TKE) in the free-convective boundary layer, from the time the surface heat flux starts decaying, until a few hours after it has vanished.
Omar El Guernaoui +4 more
semanticscholar +1 more source
Mean-field dynamo due to spatiotemporal fluctuations of the turbulent kinetic energy [PDF]
Journal of Fluid Mechanics, 973, A29 (2023), 2023 In systems where the standard $\alpha$ effect is inoperative, one often explains the existence of mean magnetic fields by invoking the `incoherent $\alpha$ effect', which appeals to fluctuations of the mean kinetic helicity at a mesoscale. Most previous studies, while considering fluctuations in the mean kinetic helicity, treated the mean turbulent ...
arxiv +1 more source
Linking the Langevin equation to scaling properties of space plasma turbulence at sub-ion scales
Physical Review Research, 2023 Current understanding of the kinetic-scale turbulence in weakly collisional plasmas still remains elusive. We employ a general framework in which the turbulent energy transfer is envisioned as a scale-to-scale Langevin process.
Simone Benella +7 more
doaj +1 more source
Turbulence kinetic energy dissipation rates estimated from concurrent UAV and MU radar measurements
Earth, Planets and Space, 2018 We tested models commonly used for estimating turbulence kinetic energy dissipation rates $$\varepsilon$$ε from very high frequency stratosphere–troposphere radar data.
H. Luce +4 more
semanticscholar +1 more source