Author(s): Shampa, Yuji Hasegawa, Hajime Nakagawa, Hiroshi Takebayashi, Kenji Kawaike
Linked Author(s): Shampa V
Keywords: Braided, sand bed, bifurcation, switch, delft 3D
Abstract: Bifurcation plays a major role in shaping the braided river. Switching of bifurcation is a very frequent natural phenomena which has a great impact on the development process of compound bars of sand bed braided rivers. Through this study, such a switching phenomenon of bifurcation has been investigated in the braided river of Brahmaputra-Jamuna by numerical simulation. This study indicates that bifurcation switching phenomenon largely depends on upstream control e. g. incoming discharge. Nevertheless, this phenomenon is highly related with the upstream channel geometry and hydraulic condition. The dimension of downstream mid channel bar, which is the cause of bifurcation may influence the discharge asymmetry greatly but may possess an indirect impact over the switching process
Year: 2017