Results 31 to 40 of about 995,261 (384)

Ribbon turbulence [PDF]

open access: yesPhysics of Fluids, 2014
We investigate the non-linear equilibration of a two-layer quasi-geostrophic flow in a channel with an initial eastward baroclinically unstable jet in the upper layer, paying particular attention to the role of bottom friction. In the limit of low bottom friction, classical theory of geostrophic turbulence predicts an inverse cascade of kinetic energy ...
Venaille, Antoine   +2 more
openaire   +4 more sources

Aerodynamic generation of electric fields in turbulence laden with charged inertial particles

open access: yesNature Communications, 2018
How lightning occurs in dusty atmospheres remains largely unknown because of the complexity of the turbulent flows involved. Di Renzo and Urzay reveal a flow-driven mechanism of charge separation by simulating turbulence laden with hundreds of millions ...
M. Di Renzo, J. Urzay
doaj   +1 more source

Unified energy law for fluctuating density wave orders in cuprate pseudogap phase

open access: yesCommunications Physics, 2022
The origin of the pseudogap in the cuprates and how it is related to the mechanism of their superconductivity has been a topic of long standing debate. Here, the authors suggest that the pseudogap is governed by a unified energy law the basis for which ...
Rong Li, Zhen-Su She
doaj   +1 more source

Suppression of the Spatial Hydrodynamic Instability in Scale-Resolving Simulations of Turbulent Flows Inside Lined Ducts

open access: yesFluids, 2023
This paper addresses one of the major obstacles arising in the high-fidelity scale-resolving simulations of turbulent flows inside ducts with the walls covered by acoustic liners in order to attenuate the sound radiated from the duct.
Mikhail Shur   +2 more
doaj   +1 more source

Statistical Properties of Turbulence: An Overview [PDF]

open access: yes, 2009
We present an introductory overview of several challenging problems in the statistical characterisation of turbulence. We provide examples from fluid turbulence in three and two dimensions, from the turbulent advection of passive scalars, turbulence in ...
A. Aharony   +141 more
core   +4 more sources

Turbulence and holography [PDF]

open access: yesClassical and Quantum Gravity, 2008
We examine the interplay between recent advances in quantum gravity and the problem of turbulence. In particular, we argue that in the gravitational context the phenomenon of turbulence is intimately related to the properties of spacetime foam. In this framework we discuss the relation of turbulence and holography and the interpretation of the ...
Vishnu Jejjala   +3 more
openaire   +3 more sources

Criteria of tracking vortex surfaces in turbulent-like flows

open access: yesAdvances in Aerodynamics, 2022
We propose criteria of tracking vortex surfaces in complex flows based on the vortex-surface field (VSF). The criteria characterize the accuracy and Lagrangian tracking performance of the numerical VSF solution, and determine the time period when the ...
Zishuo Han, Yue Yang
doaj   +1 more source

MetaComp: comprehensive analysis software for comparative meta-omics including comparative metagenomics

open access: yesBMC Bioinformatics, 2017
Background During the past decade, the development of high throughput nucleic sequencing and mass spectrometry analysis techniques have enabled the characterization of microbial communities through metagenomics, metatranscriptomics, metaproteomics and ...
Peng Zhai   +6 more
doaj   +1 more source

Magnetic-control multifunctional acoustic metasurface for reflected wave manipulation at deep subwavelength scale

open access: yesScientific Reports, 2017
Acoustic metasurfaces, exhibiting superior performance with subwavelength thickness, are ideal alternatives for functionalities such as wavefront modulation and acoustic energy trapping, etc.
Xing Chen   +3 more
doaj   +1 more source

Turbulent thermalization [PDF]

open access: yesPhysical Review D, 2004
We study, analytically and with lattice simulations, the decay of coherent field oscillations and the subsequent thermalization of the resulting stochastic classical wave-field. The problem of reheating of the Universe after inflation constitutes our prime motivation and application of the results. We identify three different stages of these processes.
Raphael Micha, Igor Tkachev
openaire   +2 more sources

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