Results 1 to 10 of about 113,224 (304)

Modeling urban pollutant transport at multiple resolutions: impacts of turbulent mixing [PDF]

Atmospheric Chemistry and Physics
Air pollution in cities impacts public health and climate. Turbulent mixing is crucial in pollutant formation and dissipation, yet current atmospheric models struggle to accurately represent it.
Z. Yang, Q. Du, Q. Yang, C. Zhao, C. Zhao, C. Zhao, G. Li, Z. Xia, M. Xu, R. Yuan, Y. Li, K. Xia, J. Gu, J. Feng   +13 more
doaj   +4 more sources

Mass Transport, Turbulent Mixing, and Inflow in Black Hole Accretion

The Astrophysical Journal
We investigate mass transport, mixing, and disk evolution in nonradiative black hole accretion flows using Lagrangian tracer particles embedded in general-relativistic magnetohydrodynamics simulations.
George N. Wong, Lia Medeiros, James M. Stone   +2 more
doaj   +3 more sources

Impact of modified turbulent diffusion of PM_2.5 aerosol in WRF-Chem simulations in eastern China [PDF]

Atmospheric Chemistry and Physics, 2021
Correct description of the boundary layer mixing process of particle is an important prerequisite for understanding the formation mechanism of pollutants, especially during heavy pollution episodes.
W. Jia, W. Jia, X. Zhang, X. Zhang
doaj   +1 more source

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, Aleksei Lobasov, Dmitriy Sharaborin, Vladimir Dulin   +3 more
doaj   +1 more source

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

Ain 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, Lado Kranjčević, Ivana Lučin, Ante Sikirica   +3 more
doaj   +1 more source

Empirical Lagrangian parametrization for wind-driven mixing of buoyant particles at the ocean surface [PDF]

Geoscientific Model Development, 2022
Turbulent mixing is a vital component of vertical particulate transport, but ocean global circulation models (OGCMs) generally have low-resolution representations of near-surface mixing.
V. Onink, V. Onink, V. Onink, E. van Sebille, C. Laufkötter, C. Laufkötter   +5 more
doaj   +1 more source

Effective Diahaline Diffusivities in Estuaries

Journal of Advances in Modeling Earth Systems, 2021
The present study aims to estimate effective diahaline turbulent salinity fluxes and diffusivities in numerical model simulations of estuarine scenarios.
Hans Burchard, Ulf Gräwe, Knut Klingbeil, Nicky Koganti, Xaver Lange, Marvin Lorenz   +5 more
doaj   +1 more source

Improved upper-ocean thermodynamical structure modeling with combined effects of surface waves and M₂ internal tides on vertical mixing: a case study for the Indian Ocean [PDF]

Geoscientific Model Development, 2022
Surface waves and internal tides have a great contribution to vertical mixing processes in the upper ocean. In this study, three mixing schemes, including non-breaking surface-wave-generated turbulent mixing, mixing induced by the wave transport flux ...
Z. Zhuang, Z. Zhuang, Z. Zhuang, Q. Zheng, Y. Yang, Y. Yang, Y. Yang, Z. Song, Z. Song, Z. Song, Y. Yuan, Y. Yuan, Y. Yuan, C. Zhou, X. Zhao, T. Zhang, J. Xie   +16 more
doaj   +1 more source

Effects of turbulent hyporheic mixing on reach-scale transport [PDF]

Water Resources Research, 2019
Abstract Turbulence causes rapid mixing of solutes and fine particles between open channel flow and coarse‐grained streambeds. Turbulent mixing is known to control hyporheic exchange fluxes and the distribution of vertical mixing rates in the streambed, but it is unclear how turbulent mixing ultimately influences mass transport at the
K. R. Roche, A. Li, D. Bolster, G. J. Wagner, A. I. Packman   +4 more
openaire   +3 more sources

Observational analyses of dramatic developments of a severe air pollution event in the Beijing area [PDF]

Atmospheric Chemistry and Physics, 2018
A rapid development of a severe air pollution event in Beijing, China, at the end of November 2015 was investigated with unprecedented observations collected during the field campaign of the Study of Urban Rainfall and Fog/Haze (SURF-15).
J. Li, J. Sun, M. Zhou, Z. Cheng, Q. Li, X. Cao, J. Zhang   +6 more
doaj   +1 more source