Results 81 to 90 of about 33,802 (217)

Effect of thermal fluctuations on homogeneous compressible turbulence

Advances in Aerodynamics, 2023
For more than a century, it has been widely believed that there is a clear gap between molecular motions at the microscopic level and turbulent fluctuations at the macroscopic level. However, recent studies have demonstrated that the thermal fluctuations
Qihan Ma, Chunxin Yang, Song Chen, Kaikai Feng, Jun Zhang   +4 more
doaj   +1 more source

Relating statistics to dynamics in axisymmetric homogeneous turbulence

, 2012
The structure and the dynamics of homogeneous turbulence are modified by the presence of body forces such that the Coriolis or the buoyancy forces, which may render a wide range of turbulence scales anisotropic.
Antonia, Antonia, Batchelor, Batchelor, Bellet, Benney, Biferale, Bos, Cambon, Chandrasekhar, Fabien S. Godeferd, Frisch, Galtier, Galtier, Galtier, Godeferd, Kolmogorov, Kurien, Lamriben, Lindborg, Lindborg, Lindborg, Mininni, Monin, Morinishi, Morize, Orszag, Oyewola, Ozmidov, Praud, Sagaut, Seiwert, Staplehurst, Xu, Yoon, Yoshimatsu, Zakharov   +36 more
core   +2 more sources

Multiscaling in Models of Magnetohydrodynamic Turbulence [PDF]

, 1997
From a direct numerical simulation of the MHD equations we show, for the first time, that velocity and magnetic-field structure functions exhibit multiscaling, extended self similarity (ESS), and generalized extended self similarity (GESS).
Basu, Abhik, Dhar, Sujan K., Pandit, Rahul, Sain, Anirban   +3 more
core   +2 more sources

Non‐Negligible Influence of Forcing Mechanisms on Turbulent Mixing at Low Reynolds Numbers: A One‐Dimensional Turbulence Study

PAMM, Volume 26, Issue 1, March 2026.
ABSTRACT This study presents a numerical investigation of passive scalar mixing in homogeneous isotropic turbulence (HIT). Different volumetric forcing schemes have been used in the literature, but the side effects are rarely discussed, either because these are assumed irrelevant or because it is too costly to conduct such an analysis with a high ...
Abhishek Joshi, Marten Klein, Heiko Schmidt   +2 more
wiley   +1 more source

Active Scalar mixing by homogeneous isotropic turbulence

Physica D: Nonlinear Phenomena
We study the mixing of active scalars by homogeneous isotropic incompressible stochastic velocity fields. We consider both Navier-Stokes generated turbulent fields as well as artificially generated homogeneous isotropic stochastic fields. We use Fourier pseudospectral direct numerical simulations to study the mixing dynamics of two non-reacting species
Jossy, Joaquim P., Awasthi, Pratyush S., Gupta, Prateek   +2 more
openaire   +2 more sources

Glacier‐Atmosphere Interactions and Feedbacks in High‐Mountain Regions ‐ A Review

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Mountain glaciers are among the natural systems most vulnerable to climate change. However, their interactions with the atmosphere are complex and not fully understood. These interactions can trigger rapid adjustments and climate feedbacks that either amplify or attenuate atmospheric signals, influencing both glacier response and large‐scale ...
T. Sauter, B. W. Brock, E. Collier, B. Goger, A. R. Groos, K. F. Haualand, R. Mott, L. Nicholson, R. Prinz, T. E. Shaw, I. Stiperski, A. Georgi, M. Haugeneder, A. Mandal, D. Reynolds, M. Saigger, J. E. Sicart, A. Voordendag   +17 more
wiley   +1 more source

Observational Evidence for Wind‐Driven Low‐Pass Filtering of Infrasound at Short Range

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Infrasound from controlled explosions provides a unique opportunity to isolate atmospheric effects on propagation. We report observations from two campaigns in May and October 2024, each featuring 10‐ton TNT‐equivalent controlled surface chemical explosions recorded by a dense network of 31 single‐sensor stations within 23 km.
Elizabeth A. Silber, Daniel C. Bowman, Sasha Egan, Lawrence Burkett, Michael Fleigle, Keehoon Kim, Tesla Newton, Loring P. Schaible, Richard Sonnenfeld, Nora Wynn, Jonathan Snively   +10 more
wiley   +1 more source

Clustering of vertically constrained passive particles in homogeneous, isotropic turbulence [PDF]

, 2014
We analyze the dynamics of small particles vertically confined, by means of a linear restoring force, to move within a horizontal fluid slab in a three-dimensional (3D) homogeneous isotropic turbulent velocity field. The model that we introduce and study
Biferale, Luca, Clercx, Herman J. H., De Pietro, Massimo, Perlekar, Prasad, Toschi, Federico, van Hinsberg, Michel A. T.   +5 more
core   +3 more sources

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

ZAMM - 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

Correlation between large- and small-scale velocity components under Fourier filters

Theoretical and Applied Mechanics Letters, 2014
By introducing the Fourier filters, we analyse the correlation between large- and small-scale velocity components in homogeneous isotropic turbulence theoretically. We show that different Fourier filters act similarly on this multi-scale correlation with
Le Fang
doaj   +1 more source