Results 81 to 90 of about 628,643 (214)

On two distinct Reynolds number regimes of a turbulent square jet

open access: yesTheoretical and Applied Mechanics Letters, 2015
The effects of Reynolds number on both large-scale and small-scale turbulence properties are investigated in a square jet issuing from a square pipe. The detailed velocity fields were measured at five different exit Reynolds numbers of 8×103≤Re≤5×104. It
Minyi Xu   +3 more
doaj   +1 more source

Evidence of Critical Balance in Kinetic Alfven Wave Turbulence Simulations

open access: yes, 2011
A numerical simulation of kinetic plasma turbulence is performed to assess the applicability of critical balance to kinetic, dissipation scale turbulence. The analysis is performed in the frequency domain to obviate complications inherent in performing a
G. G. Howes   +2 more
core   +1 more source

On dissipation time scales of the basic second-order moments: the effect on the Energy and Flux-Budget (EFB) turbulence closure for stably stratified turbulence [PDF]

open access: yesNonlinear Processes in Geophysics, 31, 395-408 (2024), 2023
The dissipation rates of the basic second-order moments are the key parameters playing a vital role in turbulence modelling and controlling turbulence energetics and spectra and turbulent fluxes of momentum and heat. In this paper, we use the results of direct numerical simulations (DNSs) to evaluate dissipation rates of the basic second-order moments ...
arxiv  

Turbulent diffusion of chemically reacting gaseous admixtures [PDF]

open access: yesPhysical Review E, Volume 90, Issue 5, id.053001 (2014), 2014
We study turbulent diffusion of chemically reacting gaseous admixtures in a developed turbulence. In our previous study [Phys. Rev. Lett. {\bf 80}, 69 (1998)] using a path-integral approach for a delta-correlated in time random velocity field, we demonstrated a strong modification of turbulent transport in fluid flows with chemical reactions or phase ...
arxiv   +1 more source

Hardening and Creep of Ion Irradiated CLAM Steel by Nanoindentation

open access: yesCrystals, 2020
Ion irradiation, combined with nanoindentation, has long been recognized as an effective way to study effects of irradiation on the mechanical properties of metallic materials.
Ying Liu   +5 more
doaj   +1 more source

Motion Enhancement of Spherical Surface Walkers with Microstructures

open access: yesAdvanced Intelligent Systems, 2021
Surface walkers are widely studied as carriers for biomedical applications, such as targeted drug delivery and cell manipulation. For in vivo/in vitro therapeutic applications, high movement velocity is necessary for efficient operation on targets with ...
Gang Wang   +6 more
doaj   +1 more source

Resource Letter TF-1: Turbulence in Fluids

open access: yes, 1999
This Resource Letter provides a guide to the literature on fully developed turbulence in fluids. It is restricted to mechanically driven turbulence in an incompressible fluid described by the Navier-Stokes equations of hydrodynamics, and places greatest ...
Nelkin, Mark
core   +1 more source

Properties and selected implications of magnetic turbulence for interstellar medium, Local Bubble and solar wind [PDF]

open access: yes, 2008
Astrophysical fluids, including interstellar and interplanetary medium, are magnetized and turbulent. Their appearance, evolution, and overall properties are determined by the magnetic turbulence that stirs it. We argue that examining magnetic turbulence at a fundamental level is vital to understanding many processes.
arxiv   +1 more source

MHD turbulence [PDF]

open access: yesLiving Reviews in Computational Astrophysics, 2019
AbstractWe review the current status of research in MHD turbulence theory and numerical experiments and their applications to astrophysics and solar science. We introduce general tools for studying turbulence, basic turbulence models, MHD equations and their wave modes. Subsequently, we cover the theories and numerics of Alfvénic turbulence, imbalanced
openaire   +3 more sources

Octopus-Inspired Underwater Soft Robotic Gripper with Crawling and Swimming Capabilities

open access: yesResearch
Can a robotic gripper only operate when attached to a robotic arm? The application space of the traditional gripper is limited by the robotic arm. Giving robot grippers the ability to move will expand their range of applications.
Mingxin Wu   +7 more
doaj   +1 more source

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