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http://dx.doi.org/10.17820/eri.2019.6.4.328

Numerical Simulation of Bed Change at the Confluence of the Gamcheon and Mihocheon  

Park, Moonhyung (Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology)
Kim, Hyung Suk (River Experiment Center, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Ecology and Resilient Infrastructure / v.6, no.4, 2019 , pp. 328-338 More about this Journal
Abstract
This paper presents the numerical simulations of future river bed changes using CCHE2D, a two-dimensional numerical model, for river confluences at the confluences of the Nakdong River and Gamcheon as well as Geum River and Mihocheon. The numerical simulations of future river bed changes were conducted for three years using hydrological data from August 30, 2012, to August 29, 2015 after the Four Major River Restoration Project. The simulation results demonstrated that river bed changes occurred actively near the confluence where sediment deposition was concentrated, resulting in the possibility of point bar formation. Through the numerical simulations, the characteristics of future river bed change was evaluated by investigating the characteristics of bed changes, average bed elevation changes, and the difference between deposition and erosion in the target section. The two-dimensional numerical model is expected to be used in the future to prepare effective stabilization plans for the tributary confluence.
Keywords
Bed change; Confluence; Deposition; Numerical simulation;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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