Transverse concentration distribution in an open channel flow with bed absorption: A multi-scale approach

Barik, Swarup; Dalal, D. C.

doi:10.1016/j.cnsns.2018.04.024

Cited by 39 publications

(1 citation statement)

References 42 publications

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“…Moreover, Barik and Dalal (2018) applied the multi-scale homogenization approach to a channel flow with bed absorption for providing longitudinal and transverse distribution of mean concentration. Recently, the effect of ecological elements on contaminant transport in wetland flows with bed absorption showed the significant influence on contaminant transport that reduced the mass and transport speed (Poddar et al, 2021;Wang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Multi‐scale analysis for environmental dispersion in wetland flow under the effect of wind

2022

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The present study emphasizes a multi‐scale analysis of an environmental dispersionin a fully developed shallow wetland flow under the wind effect, based on the momentum and mass transfer equations. From the classical momentum equation, the depth‐dominated velocity profile is derived for the wetland flow. The environmental dispersion is examined using Mei's multi‐scale analysis on moment equations of concentration in wetlands with wind‐induced effect. Further, the maximum velocity, thickness of separation layer with recirculation and its position are obtained. The increase of depth‐averaged velocity was observed for the larger contribution of conveyance capacity in wetland flows for the enhancement of wind direction. Also, the analytical result showed that the higher magnitude of environmental dispersion led to intensive dispersion process for the depth‐dominated wetland flow. Moreover, for the hierarchical composition of contaminant constituents, the duration and length of influenced region are associated with a certain standard water quality level in wetland.

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Section: Introductionmentioning

confidence: 99%