Results 81 to 90 of about 1,125 (192)

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

An implicit factorized transformer with applications to fast prediction of three-dimensional turbulence

Theoretical and Applied Mechanics Letters
Transformer has achieved remarkable results in various fields, including its application in modeling dynamic systems governed by partial differential equations.
Huiyu Yang, Zhijie Li, Xia Wang, Jianchun Wang   +3 more
doaj   +1 more source

Vortex stretching in a homogeneous isotropic turbulence

Journal of Physics: Conference Series, 2017
Stretching vortices whose sizes are in the inertial subrange of a homogeneous isotropic turbulence are picked up, and the geometric relations with the neighboring vortices whose scales are twice larger are studied. Hierarchical vortices are extracted using a Fourier band-pass filter, and each extracted vortex is reconstructed as a set of short ...
M Hirota, Y Nishio, S Izawa, Y Fukunishi
openaire   +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

Statistics of Finite Scale Local Lyapunov Exponents in Fully Developed Homogeneous Isotropic Turbulence

Advances in Mathematical Physics, 2018
The present work analyzes the statistics of finite scale local Lyapunov exponents of pairs of fluid particles trajectories in fully developed incompressible homogeneous isotropic turbulence.
Nicola de Divitiis
doaj   +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

What is the smallest physically acceptable scale for 1D turbulence schemes ?

Frontiers in Earth Science, 2014
In numerical weather prediction (NWP) models, at mesoscale, the subgrid convective boundary-layer turbulence is dominated by the uni-directional (1D) vertical thermal production.
Rachel eHonnert, Valéry eMasson
doaj   +1 more source

Effect of Unstable Water Flow on Grain Transport: Insights From Laboratory Experiments Under Reduced Atmospheric Pressure

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Nowadays, Mars presents an environment characterized by low atmospheric pressure (∼6 mbar), which profoundly alters water‐driven surface processes known from Earth. Under these conditions, water rapidly boils, cools, and stabilizes near the triple point, often freezing, which strongly limits its ability to transport sediment.
Ondřej Krýza, Petr Brož, Věra Pěnkavová, Jaromír Havlica, Mária Zedníková, Zoe Emerland, Manish Patel, Matthew Sylvest   +7 more
wiley   +1 more source

On the behavior of homogeneous, isotropic and stationary turbulence

, 2010
The recent development of a statistical model for incompressible Navier-Stokes (NS) fluids based on inverse kinetic theory (IKT, 2004-2008) poses the problem of searching for particular realizations of the theory which may be relevant for \textit{the statistical description of turbulence} and in particular for the so-called \textit{homogeneous ...
Tessarotto, M., Asci, C.
openaire   +2 more sources