Results 31 to 40 of about 628,643 (214)
Aerodynamic generation of electric fields in turbulence laden with charged inertial particles
Nature 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
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Nature Communications, 2018 The original version of this Article contained an error in the last sentence of the second paragraph of the ‘Atmospheric rarefaction effects’ section of the Results, which incorrectly read ‘The other one emulates the rarefied, CO2-rich Martian atmosphere
M. Di Renzo, J. Urzay
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Journal of Fluid Mechanics, 2017 In this paper, we address the problem of how to account for second-order statistics of turbulent flows using low-complexity stochastic dynamical models based on the linearized Navier–Stokes equations. The complexity is quantified by the number of degrees of freedom in the linearized evolution model that are directly influenced by stochastic excitation ...
Armin Zare +2 more
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Turbulent thermal diffusion in a multi-fan turbulence generator with the imposed mean temperature gradient [PDF]
Experiments in Fluids, 2006, v. 40, 744-752, 2006 We studied experimentally the effect of turbulent thermal diffusion in a multi-fan turbulence generator which produces a nearly homogeneous and isotropic flow with a small mean velocity. Using Particle Image Velocimetry and Image Processing techniques we showed that in a turbulent flow with an imposed mean vertical temperature gradient (stably ...
arxiv +1 more source
Experimental study of turbulent thermal diffusion of particles in an inhomogeneous forced convective turbulence [PDF]
Physics of Fluids 35, 095123 (2023), 2023 We investigate experimentally phenomenon of turbulent thermal diffusion of micron-size solid particles in an inhomogeneous convective turbulence forced by one vertically-oriented oscillating grid in an air flow. This effect causes formation of large-scale inhomogeneities in particle spatial distributions in a temperature-stratified turbulence.
arxiv +1 more source
On the Nature of Turbulence [PDF]
Communications in Mathematical Physics, 1971 A mechanism for the generation of turbulence and related phenomena in dissipative systems is proposed.
Ruelle, David, Takens, Floris
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Scientific 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
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Multi‐diagnostic multi‐model ensemble forecasts of aviation turbulence [PDF]
, 2020 Turbulence is one of the major weather hazards to aviation. Studies have shown that clear‐air turbulence may well occur more frequently with future climate change.
Brown R. +3 more
core +1 more source