Results 91 to 100 of about 43,251 (230)

Power laws and inverse motion modelling: application to turbulence measurements from satellite images

Tellus: Series A, Dynamic Meteorology and Oceanography, 2012
In the context of tackling the ill-posed inverse problem of motion estimation from image sequences, we propose to introduce prior knowledge on flow regularity given by turbulence statistical models.
Pablo D. Mininni, Dominique Heitz, Etienne Mémin, Patrick Héas   +3 more
doaj   +1 more source

The Lifecycle of Tracer Variance in the North Atlantic

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Oceanic tracer distributions are shaped by turbulent mixing, which may be understood via a tracer variance budget. There is a tracer variance lifecycle: variance production by turbulent flows stirring large‐scale gradients, redistribution by currents, and variance dissipation by molecular diffusion.
Espe Broullón, Richard G. Williams, Alberto C. Naveira Garabato, Louis Clément, Bieito Fernández Castro   +4 more
wiley   +1 more source

Particle Dispersion and Coherent Fine Scale Eddies in Turbulence

Journal of Fluid Science and Technology, 2008
Direct numerical simulations of homogeneous isotropic turbulence laden with particles have been conducted to clarify the relationship between particle dispersion and coherent fine scale eddies in turbulence.
Makoto SATO, Mamoru TANAHASHI, Toshio MIYAUCHI   +2 more
doaj   +1 more source

Higher-order dissipation in the theory of homogeneous isotropic turbulence

Journal of Fluid Mechanics, 2016
The two-point theory of homogeneous isotropic turbulence is extended to source terms appearing in the equations for higher-order structure functions. For this, transport equations for these source terms are derived. We focus on the trace of the resulting
N. Peters, J. Boschung, M. Gauding, J. Goebbert, R. Hill, H. Pitsch   +5 more
semanticscholar   +1 more source

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

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

Simulation of three-dimensional homogeneous isotropic turbulence using the moment-based lattice Boltzmann method and LES-lattice Boltzmann method

Journal of Fluid Science and Technology, 2014
Three-dimensional homogeneous isotropic turbulence simulations are conducted using moment-based lattice Boltzmann method and the large-eddy simulation based lattice Boltzmann method.
Muhammad IZHAM, Tomohiro FUKUI, Koji MORINISHI   +2 more
doaj   +1 more source

Impact of Partial Echo on 4D Flow MRI: The Insight From Synthetic MRI

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3462-3475, June 2026.
ABSTRACT Purpose The aim of this study is to investigate the impact of the partial echo on 4D flow MRI sequences thanks to in silico coupled MRI‐CFD (computational fluid dynamics) simulations. Methods Two sequences are studied: one with a full echo (FE) and another using partial echo (PE) with an echo symmetry fraction of 0.75.
Morgane Garreau, Thomas Puiseux, Ramiro Moreno, Solenn Toupin, Daniel Giese, Franck Nicoud, Simon Mendez   +6 more
wiley   +1 more source

Computational Fluid Dynamics Reveals Mass Transfer Limitations in a Pilot‐Scale Microbial Electrolysis Cell

Water Environment Research, Volume 98, Issue 6, June 2026.
A computational fluid dynamics (CFD) model of a 1‐m3 microbial electrolysis cell (MEC) reveals that pilot‐scale MEC performance is governed by hydrodynamics and external mass transfer rather than intrinsic bioelectrochemical kinetics. Recirculation mitigates limitations in external mass transfer, increasing acetate removal from ~16% to ~48%.
Oscar Guerrero‐Sodric, Rholand Jordi Navarro‐Quispe, Martí Cortada‐García, Juan Antonio Baeza, Albert Guisasola   +4 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