Abstract
Abstract Hydrodynamic and sediment transport modeling is important to the analyses of the aggradation and degradation of a river system, the sediment management in a reservoir, and the study of downstream effect on the coastal sediment. This paper presents a development of a three-dimensional hydrodynamic and sediment transport model to investigate the variation of sediment concentration in Shihmen Reservoir in Taiwan under typhoon induced flood events. The fundamental equations that govern fluid flows and sediment concentration are the Reynolds-averaged Navier-Stokes (RANS) equations and sediment transport equation. Model equations are solved by using an implicit, finite-difference scheme in a curvilinear and vertically stretched coordinate system. A case study of Shihmen Reservoir utilizing the present flow and transport model is presented. The upstream flow-rate conditions are obtained from the data recorded during the 2005 Typhoon Haitang. The computed results clearly reflect the three-dimensional fea...
Published Version
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