Author(s): Sung Hyun Jung; Sung-Uk Choi; Il Won Seo
Linked Author(s): Il Won Seo, Sung-Uk Choi
Keywords: Pollutant mixing; Notched weir; Storage zone model; Numerical simulation
Abstract: Pollutant transport in rivers exerts a significant impact on water resources management and safe water supply. The mixing of pollutants in rivers is influenced by various factors, but the impacts of hydraulic structures on pollutant mixing have rarely been studied. Especially in Korea, over 33,000 weirs have been installed in rivers for agricultural purposes (Ministry of Oceans and Fisheries, 2020). To improve the connectivity between upstream and downstream of the weir, most weirs have more than one notch at the crest. This notch form causes flow deflection at the upstream of the weir, and generates storage zones, particularly at the side of the banks and between the notches. In this study, the effect of the notch on the storage zone is quantitatively investigated by the 2D numerical model.
Year: 2024