Results 71 to 80 of about 628,643 (214)
Variability of Internally Generated Turbulence in an Estuary, from 100 Days of Continuous Observations [PDF]
We present detailed observations of internally generated turbulence in a sheared, stratified natural flow, as well as an analysis of the external factors leading to its generation and temporal variability.
Orton, P. M., Visbeck, Martin
core +1 more source
Explosive Turbulent Magnetic Reconnection [PDF]
We report simulation results for turbulent magnetic reconnection obtained using a newly developed Reynolds-averaged magnetohydrodynamics model. We find that the initial Harris current sheet develops in three ways, depending on the strength of turbulence: laminar reconnection, turbulent reconnection, and turbulent diffusion.
arxiv +1 more source
Vortices and turbulence in trapped atomic condensates [PDF]
After over a decade of experiments generating and studying the physics of quantized vortices in atomic gas Bose-Einstein condensates, research is beginning to focus on the roles of vortices in quantum turbulence, as well as other measures of quantum ...
Anderson, Brian P.+2 more
core +2 more sources
A Fluid-Dynamical Subgrid Scale Model for Highly Compressible Astrophysical Turbulence [PDF]
We formulate and implement the Euler equations with SGS dynamics and provide numerical tests of an SGS turbulence energy model that predicts the turbulent pressure of unresolved velocity fluctuations and the rate of dissipation for highly compressible ...
Agertz+42 more
core +3 more sources
MHD Turbulence, Turbulent Dynamo and Applications [PDF]
MHD Turbulence is common in many space physics and astrophysics environments. We first discuss the properties of incompressible MHD turbulence. A well-conductive fluid amplifies initial magnetic fields in a process called small-scale dynamo. Below equipartition scale for kinetic and magnetic energies the spectrum is steep (Kolmogorov -5/3) and is ...
A. Lazarian, Andrey Beresnyak
openaire +3 more sources
A soft gripper inspired by the glowing sucker octopus (Stauroteuthis syrtensis)’ highly evolved grasping capability enabled by the umbrella‐shaped dorsal and ventral membrane between each arm is presented here, comprising of a 3D‐printed linkage ...
Mingxin Wu+9 more
doaj +1 more source
Strong Universality in Forced and Decaying Turbulence
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+33 more
core +1 more source
Turbulence Generation from a stochastic wavelet model [PDF]
This research presents a new turbulence generation method based on stochastic wavelets and tests its various properties in both homogeneous and inhomogeneous turbulence. Turbulence field can be generated with less basis compared to previous synthetic Fourier methods.
arxiv +1 more source
3D Propulsions of Rod‐Shaped Micropropellers
Untethered, magnetically driven microrobots have great potential in practical applications such as minimally invasive surgery. Microrods, also known as “nanowires,” are the most commonly used type of structure for microrobots due to the easy fabrication ...
Yuan Zhang+6 more
doaj +1 more source
Turbulence decay in the density-stratified intracluster medium
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