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Updated: May 30, 2026

The Diffusion of Passive Tracers in Laminar Shear Flow
Published on: May 1, 2018
Crossing turbulent boundaries: interfacial flux in environmental flows
Stanley B Grant1, Ivan Marusic
1Department of Civil and Environmental Engineering, Henry Samueli School of Engineering, University of California, Irvine, California 92697, United States. sbgrant@uci.edu
Abstract:
Advances in the visualization and prediction of turbulence are shedding new light on mass transfer in the turbulent boundary layer. These discoveries have important implications for many topics in environmental science and engineering, from the transport of earth-warming CO2 across the sea-air interface, to nutrient processing and sediment erosion in rivers, lakes, and the ocean, to pollutant removal in water and wastewater treatment systems. In this article we outline current understanding of turbulent boundary layer flows, with particular focus on coherent turbulence and its impact on mass transport across the sediment-water interface in marine and freshwater systems.
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