Results 31 to 40 of about 60,257 (227)

Turbulence decay in the density-stratified intracluster medium

, 2019
Turbulence evolution in a density-stratified medium differs from that of homogeneous isotropic turbulence described by the Kolmogorov picture. We evaluate the degree of this effect in the intracluster medium (ICM) with hydrodynamical simulations. We find
Shi, Xun, Zhang, Congyao
core   +1 more source

The influence of a mean magnetic field on three-dimensional magnetohydrodynamic turbulence [PDF]

, 1994
Building on results from two-dimensional magnetohydrodynamic (MHD) turbulence (Shebalin, Matthaeus & Montgomery 1983), the development of anisotropic states from initially isotropic ones is investigated numerically for fully three-dimensional ...
Matthaeus, William H., Oughton, Sean, Priest, Eric R.   +2 more
core   +2 more sources

Scaling properties in the production range of shear dominated flows

, 2005
Recent developments in turbulence are focused on the effect of large scale anisotropy on the small scale statistics of velocity increments. According to Kolmogorov, isotropy is recovered in the large Reynolds number limit as the scale is reduced and, in ...
A. N. Kolmogorov, B. Jacob, C. M. Casciola, P. Gualtieri, R. Piva   +4 more
core   +1 more source

Turbulent Prandtl number from isotropically forced turbulence

Journal of Fluid Mechanics, 2022
Turbulent motions enhance the diffusion of large-scale flows and temperature gradients. Such diffusion is often parameterized by coefficients of turbulent viscosity ( $\nu _{t}$ ) and turbulent thermal diffusivity ( $\chi _{t}$ ) that are analogous to their microscopic counterparts.
Petri J. Käpylä, Nishant K. Singh
openaire   +3 more sources

Droplet size distribution in homogeneous isotropic turbulence [PDF]

, 2011
We study the physics of droplet breakup in a statistically stationary homogeneous and isotropic turbulent flow by means of high resolution numerical investigations based on the multicomponent lattice Boltzmann method.
Federico Toschi, Frisch U., Gatignol R., Luca Biferale, Mauro Sbragaglia, Prasad Perlekar, Succi S., Sudhir Srivastava   +7 more
core   +2 more sources

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

Advanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias, Maxwell J. Munford, Frederik C.H. Masure, Richard J. van Arkel, Reece N Oosterbeek   +4 more
wiley   +1 more source

Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion

Advanced Science, EarlyView.
In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi, Nicholas Andrianto, Glen Vosgerichian, Farhood Aghdasi, Joshua Lloyd, Ali Zabihi, Chen Shen   +6 more
wiley   +1 more source

Wave Structure Function and Long-Exposure MTF for Gaussian-Beam Waves Propagating in Anisotropic Maritime Atmospheric Turbulence

Applied Sciences, 2020
The expressions of wave structure function (WSF) and long-exposure modulation transfer function (MTF) for laser beam propagation through non-Kolmogorov turbulence were derived in our previous work. In this paper, based on anisotropic maritime atmospheric
Bing Guan, Haiyang Yu, Wei Song, Jaeho Choi   +3 more
doaj   +1 more source

Ductile Breakup of Tracer Aggregates in Homogenous Isotropic Turbulence

Chemical Engineering Transactions, 2023
In this paper we study the ductile breakup of tracer aggregates in an incompressible, homogeneous, and isotropic three-dimensional turbulent flow. The flow dynamics is studied by means of a direct numerical simulation, whereas the Lagrangian velocities ...
Graziano Frungieri, Matthaus U. Baebler, Luca Biferale, Alessandra S. Lanotte   +3 more
doaj   +1 more source

Strong Universality in Forced and Decaying Turbulence

, 2003
The weak version of universality in turbulence refers to the independence of the scaling exponents of the $n$th order strcuture functions from the statistics of the forcing.
A. Celani, A. Celani, A.M. Yaglom, A.N. Kolmogorov, A.N. Kolmogorov, Anna Pomyalov, B.A. Kader, D. Fukayama, E.S.C. Ching, E.S.C. Ching, G. Falkovich, G.I. Taylor, G.K. Batchelor, G.K. Batchelor, I. Arad, I. Arad, I. Arad, Itamar Procaccia, J.-O. Hooghoudt, K.R. Sreenivasan, L. Skrbek, M. Vergassola, Rubén A. Pasmanter, S. Kurien, T.D. Kármán, V. Borue, V.I. Belinicher, V.I. Belinicher, V.I. Belinicher, V.S. L’vov, V.S. L’vov, V.S. L’vov, Victor S. L’vov, Y. Cohen   +33 more
core   +1 more source