Author(s): Shiyan Zhang; Dong Chen; Koen Blanckaert; Willem Ottevanger; Leilei Gu
Linked Author(s): Koen Blanckaert
Keywords: Meander; Nonlinear model; Bank erosion; Model
Abstract: The evolution of meanders has been the focus of research challenging river engineers for decades. The study simulates the natural evolution of meandering processes by coupling a nonlinear flow model (by Blanckaert and de Vriend, 2010) with the Bank Erosion and Retreat Model (BERM, by Chen and Duan, 2006) .Distinguished from our linear meander evolution model (Chen and Duan, 2006) which adopted the first-order analytical solution of flow field in a sine-generated channel (by Johannesson and Parker, 1989b) ,the present model is applicable to any channel planforms without curvature restrictions therefore more suitable for moderately and highly curved channels. The computed results demonstrate the improvement of simulation of meander evolution by adopting the advanced hydrodynamic model.
Year: 2015