Results 31 to 40 of about 28,958 (312)
▪ Abstract The ability of turbulent flows to effectively mix entrained fluids to a molecular scale is a vital part of the dynamics of such flows, with wide-ranging consequences in nature and engineering. It is a considerable experimental, theoretical, modeling, and computational challenge to capture and represent turbulent mixing which, for high ...
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Deep learning of turbulent scalar mixing [PDF]
arXiv admin note: text overlap with arXiv:1808.04327, arXiv:1808 ...
Maziar Raissi +2 more
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Influence of bluff-body and swirl on mixing and intermittency of jets [PDF]
In this paper we present the modelled results of turbulence, scalar mixing and intermittency for three different basic fluid dynamical problems using large eddy simulation (LES). The modelled problems are a turbulent round jet, a bluff body stabilised
Kirkpatrick, M. P. +3 more
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Is Turbulent Mixing a Self-Convolution Process? [PDF]
Experimental results for the evolution of the probability distribution function (PDF) of a scalar mixed by a turbulence flow in a channel are presented. The sequence of PDF from an initial skewed distribution to a sharp Gaussian is found to be non universal.
Venaille, Antoine, Sommeria, Joël
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Finescale parameterizations of turbulent dissipation [PDF]
This article (1) reviews and clarifies the basic physics underpinning finescale parameterizations of turbulent dissipation due to internal wave breaking and (2) provides advice on the implementation of the parameterizations in a way that is most ...
Naveira Garabato, Alberto C. +10 more
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Large Eddy Simulation of turbulent fluid mixing in double-tee junctions
Double-Tee junctions serve as building blocks of pipe network systems and fluid mixing occurring in them is complex due to excessive eddying of flow.
Luka Grbčić +3 more
doaj +1 more source
A study of mixing and intermittency in a coaxial turbulent jet [PDF]
A large eddy simulation study of mixing and intermittency of a coaxial turbulent jet discharging into an unconfined domain has been conducted. The work aims to gain insight into the mixing and intermittency of turbulent coaxial jet configurations. The
Savill, A.M. +7 more
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Turbulent mixing and beyond [PDF]
Turbulence is a supermixer. Turbulent mixing has immense consequences for physical phenomena spanning astrophysical to atomistic scales under both high- and low-energy-density conditions. It influences thermonuclear fusion in inertial and magnetic confinement systems; governs dynamics of supernovae, accretion disks and explosions; dominates stellar ...
S. I. Abarzhi, K. R. Sreenivasan
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Mixing in manipulated turbulence [PDF]
A new computational framework for the simulation of turbulent flow through complex objects and along irregular boundaries is presented. This is motivated by the application of metal foams in compact heat-transfer devices, or as catalyst substrates in process-engineering.
Kuczaj, Arkadiusz K. +1 more
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Global patterns of diapycnal mixing from measurements of the turbulent dissipation rate [PDF]
The authors present inferences of diapycnal diffusivity from a compilation of over 5200 microstructure profiles. As microstructure observations are sparse, these are supplemented with indirect measurements of mixing obtained from (i) Thorpe-scale ...
Carter, Glenn S. +20 more
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