Results 91 to 100 of about 70,297 (251)

Longitudinal and transverse structure functions in high Reynolds-number magneto-hydrodynamic turbulence

open access: yesNew Journal of Physics, 2016
We investigate the scaling behavior of longitudinal and transverse structure functions in homogeneous and isotropic magneto-hydrodynamic (MHD) turbulence by means of an exact hierarchy of structure function equations as well as by direct numerical ...
J Friedrich   +3 more
doaj   +1 more source

Near-wake analysis of actuator line method immersed in turbulent flow using large-eddy simulations [PDF]

open access: yesWind Energy Science, 2018
The interaction between wind turbines through their wakes is an important aspect of the conception and operation of a wind farm. Wakes are characterized by an elevated turbulence level and a noticeable velocity deficit, which causes a decrease in ...
J. Nathan, C. Masson, L. Dufresne
doaj   +1 more source

A general approach to the linear stability of viscoelastic shear‐flows

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 2, February 2026.
Abstract The present work provides an in‐depth analysis of the linear stability theory of viscoelastic shear‐flows, based upon a constitutive equation of the fading memory type. The particular model considered herein was introduced by Kenneth Walters through the integration of classical rate‐type fluids in a convected frame (Walters 1962).
Johannes Conrad, Martin Oberlack
wiley   +1 more source

Homogeneous and Isotropic Turbulence: a short survey on recent developments

open access: yes, 2015
We present a detailed review of some of the most recent developments on Eulerian and Lagrangian turbulence in homogeneous and isotropic statistics. In particular, we review phenomenological and numerical results concerning the issue of universality with ...
Benzi, R., Biferale, L.
core   +1 more source

Novel Insights on Ocean Internal Waves: Quantitative Surface Manifestations and Upper Ocean Layer Displacements From the Surface Water Ocean Topography Mission (SWOT) Measurements

open access: yesEarth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The Surface Water and Ocean Topography (SWOT) mission provides unprecedented high‐resolution simultaneous observations of both sea surface height anomalies and sea surface roughness. Specifically, it enables more precise analysis of strong internal waves. Off the Amazon Shelf, in the Indonesian Seas, and near the Mascarene Ridge, internal wave
V. Cheshm Siyahi   +3 more
wiley   +1 more source

Formation of Fine Structures in Incompressible Hall Magnetohydrodynamic Turbulence Simulations

open access: yesPlasma
Hall magnetohydrodynamic simulations are often carried out to study the subjects of instabilities and turbulence of space and nuclear fusion plasmas in which sub-ion-scale effects are important.
Hideaki Miura
doaj   +1 more source

Determination of the decay exponent in mechanically stirred isotropic turbulence

open access: yesAIP Advances, 2011
Direct numerical simulation is used to investigate the decay exponent of isotropic homogeneous turbulence over a range of Reynolds numbers sufficient to display both high and low Re number decay behavior.
J. Blair Perot
doaj   +1 more source

Understanding Atrial Fibrillation Complexity Through the Lens of Turbulence Dynamics: Implications for Treatment Strategies

open access: yesJournal of Cardiovascular Electrophysiology, Volume 37, Issue 2, Page 400-412, February 2026.
ABSTRACT Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice. Its incidence increases significantly with age and has become a major global public health issue. Although research into the mechanisms of AF has spanned over a century‐ranging from the reentry theory to the rotor hypothesis‐none of these
Xin Chu   +4 more
wiley   +1 more source

Flow‐Dependent Inertial Permeability Defines Crossover Between Darcy and Forchheimer Flow Regimes

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract We present mechanistic evidence that the Forchheimer inertial permeability coefficient (β $\beta $) is flow‐dependent in the weak‐to‐intermediate inertia crossover regime, governed by pore‐scale eddy growth‐to‐confinement dynamics. In contrast to classical theory, β $\beta $ attains steady‐state (βs ${\beta }_{s}$) asymptotically in the ...
Kuldeep Singh, Negin Sharifabad
wiley   +1 more source

Lagrangian statistics of pressure fluctuation events in homogeneous isotropic turbulence

open access: yes, 2019
Homogeneous and isotropic turbulent fields obtained from two DNS databases (with $\mbox{Re}_\lambda$ equal to 150 and 418) were seeded with point particles that moved with the local fluid velocity to obtain Lagrangian pressure histories.
Bappy, Mehedi   +2 more
core   +1 more source

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