Results 41 to 50 of about 10,386,151 (162)

The Structure and Lifecycle of Stratified Mixing by Shear Instabilities in Continuously Forced Flows

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract The turbulent energy cascade of ocean mixing remains poorly understood at geophysically large Reynolds numbers (Re $\mathrm{R}\mathrm{e}$). Here we propose a new conceptual model for the structure of small‐scale mixing grounded in high‐resolution multibeam echosounding observations from the mouth of the Connecticut River, a shallow salt‐wedge ...
Adrien Lefauve, C. Bassett, D. S. Plotnick, A. C. Lavery, W. R. Geyer   +4 more
wiley   +1 more source

On channel capacity of FSO communication systems in anisotropic non-Kolmogorov strong turbulent atmosphere

Journal of the Optical Society of America A, 2019
Average channel capacity of free space optical (FSO) communication systems using a Gaussian beam with the intensity modulation and direct detection technique is investigated in anisotropic non-Kolmogorov strong turbulent atmosphere. The channel model is selected as gamma-gamma distribution, which is valid for strong turbulence.
openaire   +4 more sources

The Anatomy of Convection Under Lake Ice: Reynolds Stresses and Convective Energy Budget From In Situ Observations

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract We present the first in situ observations of the full turbulence tensor of free convection under lake ice, obtained using an original method based on a set of two synchronized acoustic Doppler profilers to measure all six turbulent stress components.
G. B. Kirillin, S. R. Bogdanov, G. E. Zdorovennova   +2 more
wiley   +1 more source

A novel idea: calculating anisotropic turbulence only by Kolmogorov structure constant C$_n^2$ and power law $\alpha$

, 2020
As stated in the present research, the anisotropic non-Kolmogorov turbulence model is more in line with the actual turbulence. However, anisotropic factor is vital for the accuracy of calculations, and measuring it precisely is a challenging task.
Chao Zhai (324088)
core   +1 more source

Three‐Year Characterization of Boundary Layer Dynamics From GNSS Zenith Wet Delay Spectral Analysis

Atmospheric Science Letters, Volume 27, Issue 6, June 2026.
Three years of GNSS zenith wet delay observations at Payerne reveal that spectral parameters—cutoff frequency α and variance σ2—capture robust seasonal cycles in boundary layer turbulence (R2 = 0.54 for α). Their inverse coupling tightens to r = −0.82 under summer convection, encoding regime‐dependent physics.
Gaël Kermarrec, Xavier Calbet, Zhiguo Deng   +2 more
wiley   +1 more source

Quadratic Vortex Optical Pin Beam With OAM Mode Anti-Degradation Characteristic

IEEE Photonics Journal
Orbital angular momentum (OAM) signal mode crosstalk and energy loss induced by atmospheric turbulence are challenging phenomena commonly occurring in high-capacity and high-speed OAM-based free-space optical communications. In this paper, we combine the
Huahua Wang, Meiling Guan, Hongyue Xiao, Hongwei Jiang, Changqi Zhang, Yang Liu, Fei Chen, Lu Gao, Ze Zhang   +8 more
doaj   +1 more source

Influence of Particle Aspect Ratio on Translational Collision Dynamics in Wall‐Bounded Turbulence

Chemical Engineering &Technology, Volume 49, Issue 6, June 2026.
Direct numerical simulations with fully resolved four‐way coupling show that particle shape strongly influences collision dynamics in turbulent channel flow. Needle‐like ellipsoids align with local shear, reducing turbulent scattering and producing lower collision velocities with narrower impact‐angle distributions.
Connor H. Nolan, Lee F. Mortimer, Peter K. Jimack, Michael Fairweather   +3 more
wiley   +1 more source

Diagnosing Kinetic Energy Scaling Using Lagrangian and Eulerian Metrics in Different Dynamical Regimes of the North Atlantic

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Understanding the multiscale dynamics of ocean surface turbulence requires diagnostics that reliably characterize variability at scales both larger and smaller than the Rossby radius of deformation. This study evaluates the consistency and interpretability of second‐order velocity structure functions derived from Eulerian and Lagrangian ...
I. Leimann, M. Epke, J. Dräger‐Dietel, A. Griesel, M. Walter, L. Linardakis, P. Korn, N. Brüggemann   +7 more
wiley   +1 more source

Phenomenology of hydromagnetic turbulence in a uniformly expanding medium [PDF]

, 1996
A simple phenomenology is developed for the decay and transport of turbulence in a constant-speed, uniformly expanding medium. The fluctuations are assumed to be locally incompressible, and either of the hydrodynamic or non-Alfvénic magnetohydrodynamic ...
Matthaeus, William H., Oughton, Sean, Zank, Gary P.   +2 more
core   +1 more source

Importance of Spatially Continuous Urban Surface Properties in Urban‐Resolving Earth System Modeling

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.
Abstract Accurate representation of urban properties and processes at higher resolutions in global modeling systems is essential for advancing our ability to capture the complexities of urban systems and informing effective resilience strategies. However, the prescription of coarse global‐scale urban properties in most state‐of‐the‐art Earth system ...
Yifan Cheng, Lei Zhao, Keith Oleson, TC Chakraborty, Keer Zhang, Cenlin He, Joyce Yang   +6 more
wiley   +1 more source