Results 21 to 30 of about 113,224 (304)

Restratification in Late Winter Lakes Induced by Cabbeling

open access: yesGeophysical Research Letters, 2023
The under‐ice fluid dynamics during late winter in many freshwater settings remain poorly understood. One example is how cabbeling, the generation of dense water by mixing water masses on different sides of the temperature of maximum density (Tmd ...
Andrew P. Grace   +2 more
doaj   +1 more source

Effective diffusivity of passive scalars in rotating turbulence [PDF]

open access: yes, 2013
We use direct numerical simulations to compute turbulent transport coefficients for passive scalars in turbulent rotating flows. Effective diffusion coefficients in the directions parallel and perpendicular to the rotations axis are obtained by studying ...
Imazio, P. Rodriguez, Mininni, P. D.
core   +2 more sources

Turbulent Flow and Mixing Characteristics in T-Junction

open access: yesJournal of Fluid Science and Technology, 2011
The flow and temperature/concentration fields in the mixing channel have complex three-dimensional and unsteady natures that are accompanied by flow separations and reattachments, longitudinal vortices, and large-scale velocity fluctuations.
Masafumi HIROTA, Hiroshi NAKAYAMA
doaj   +1 more source

Comparison of Various Turbulence Models in Rotating Machinery Blade-to-Blade Passages

open access: yesInternational Journal of Rotating Machinery, 2000
Numerical calculations on four blade passages are done using Q3D Navier-Stokes solver with a simple mixing length turbulence model and two more advanced transport-equation approaches.
E. Y. K. Ng, S. T. Tan
doaj   +1 more source

Effects of Horizontal Transport and Vertical Mixing on Nocturnal Ozone Pollution in the Pearl River Delta

open access: yesAtmosphere, 2022
Based on the meteorological, ozone (O3), and vertical observation data of 2020, this study sought to evaluate the daily variation in O3, particularly the characteristics of nocturnal ozone pollution.
Honglong Yang   +5 more
doaj   +1 more source

Energy Release Through Internal Wave Breaking [PDF]

open access: yesOceanography, 2012
The sun inputs huge amounts of heat to the ocean, heat that would stay near the ocean's surface if it were not mechanically mixed into the deep. Warm water is less dense than cold water, so that heated surface waters "float" on top of the cold deep ...
Hans van Haren, Louis Gostiaux
doaj  

Mechanics of the turbulent/non-turbulent interface of a jet [PDF]

open access: yes, 2005
We report the results of an experimental investigation of the mechanics and transport processes at the bounding interface between the turbulent and nonturbulent regions of flow in a turbulent jet, which shows the existence of a finite jump in the ...
Fukushima, C   +3 more
core   +1 more source

Thermal Transport and Entropy Production Mechanisms in a Turbulent Round Jet at Supercritical Thermodynamic Conditions

open access: yesEntropy, 2017
In the present paper, thermal transport and entropy production mechanisms in a turbulent round jet of compressed nitrogen at supercritical thermodynamic conditions are investigated using a direct numerical simulation.
Florian Ries   +2 more
doaj   +1 more source

Diapycnal Mixing Induced by Rough Small‐Scale Bathymetry

open access: yesGeophysical Research Letters, 2023
Diapycnal mixing impacts vertical transport rates of salt, heat, and other dissolved substances, essential for the overturning circulation and ecosystem functioning in marine systems.
J. Muchowski   +7 more
doaj   +1 more source

Turbulent transport in hydromagnetic flows

open access: yes, 2009
The predictive power of mean-field theory is emphasized by comparing theory with simulations under controlled conditions. The recently developed test-field method is used to extract turbulent transport coefficients both in kinematic as well as nonlinear ...
A Brandenburg   +35 more
core   +4 more sources

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