Results 31 to 40 of about 11,375 (261)
Measurements of entrainment and mixing in turbulent jets [PDF]
AIAA Journal, 1985 An experimental investigation of entrainment and mixing in the self-similar far field of an axisymmetric free turbulent jet in water is presented. Length and time scales for the flame length fluctuations of reacting jets are shown to be approximately equal to the local characteristic large scale length and time of the flow.
Dahm, W. A., Dimotakis, P. E.
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Is Turbulent Mixing a Self-Convolution Process? [PDF]
Physical 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
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Modeling turbulent mixing [PDF]
AIP Conference Proceedings, 2012 Fluid mixing is an important phenomenon in many physical applications from supernova explosions to genetic structure formations. Moving interfaces between distinct fluids in a multi-fluid system are often unstable. Small perturbations at such interfaces grow as a result of nonlinear hydrodynamic processes, and evolve into turbulent mixing regions.
Baolian Cheng +3 more
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Evolving Interior Mixing Regimes in a Tidal River Plume
Geophysical Research Letters, 2022 Microstructure profiling was utilized to estimate vertical mixing (via vertical turbulent buoyancy flux) during a tidal pulse in the interior Merrimack River plume in calm winds.
Preston Spicer +4 more
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Simulated mixing in the UTLS by small-scale turbulence using multi-scale chemistry-climate model MECO(n) [PDF]
Atmospheric Chemistry and PhysicsThe chemical composition of the upper troposphere and lower stratosphere (UTLS) plays an important role for the climate by affecting the radiation budget. Small-scale diabatic mixing like turbulence has a significant impact on the distribution of tracers
C. H. Chau, P. Hoor, H. Tost
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Testing Basic Gradient Turbulent Transport Models for Swirl Burners Using PIV and PLIF
Fluids, 2021 The present paper reports on the combined stereoscopic particle image velocimetry (PIV) and planar laser induced fluorescence (PLIF) measurements of turbulent transport for model swirl burners without combustion.
Alexey Savitskii +3 more
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Drizzle formation in stratocumulus clouds: effects of turbulent mixing [PDF]
Atmospheric Chemistry and Physics, 2016 The mechanism of drizzle formation in shallow stratocumulus clouds and the effect of turbulent mixing on this process are investigated. A Lagrangian–Eularian model of the cloud-topped boundary layer is used to simulate the cloud measured during flight
L. Magaritz-Ronen, M. Pinsky, A. Khain
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International Journal of Advanced Nuclear Reactor Design and TechnologyIn this paper the turbulent mixing models of several domestic autonomous PWR subchannel software under review by the national nuclear safety administration were evaluated and studied.
Bin Jia +5 more
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Initial conditions for turbulent mixing simulations
Condensed Matter Physics, 2010 In the context of the classical Rayleigh-Taylor hydrodynamical instability, we examine the much debated question of models for initial conditions and the possible influence of unrecorded long wave length contributions to the instability growth rate α.
T. Kaman, J. Glimm, D.H. Sharp
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Mixing in manipulated turbulence [PDF]
Journal 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
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