Results 31 to 40 of about 28,958 (312)

TURBULENT MIXING [PDF]

open access: yesAnnual Review of Fluid Mechanics, 2005
▪ 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 ...
openaire   +2 more sources

Deep learning of turbulent scalar mixing [PDF]

open access: yesPhysical Review Fluids, 2019
arXiv admin note: text overlap with arXiv:1808.04327, arXiv:1808 ...
Maziar Raissi   +2 more
openaire   +2 more sources

Influence of bluff-body and swirl on mixing and intermittency of jets [PDF]

open access: yes, 2010
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
core   +1 more source

Is Turbulent Mixing a Self-Convolution Process? [PDF]

open access: yesPhysical Review Letters, 2008
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
openaire   +4 more sources

Finescale parameterizations of turbulent dissipation [PDF]

open access: yes, 2014
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
core   +1 more source

Large Eddy Simulation of turbulent fluid mixing in double-tee junctions

open access: yesAin Shams Engineering Journal, 2021
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]

open access: yes, 2010
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
core   +1 more source

Turbulent mixing and beyond [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
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
openaire   +3 more sources

Mixing in manipulated turbulence [PDF]

open access: yesJournal of Turbulence, 2006
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
openaire   +4 more sources

Global patterns of diapycnal mixing from measurements of the turbulent dissipation rate [PDF]

open access: yes, 2014
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
core   +1 more source

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