Author(s)

H.-C. Lien, J.-C. Yang & K.-C. Yeh

Abstract

The purpose of this study is to develop a depth-averaged two-dimensional model to investigate the flow pattern and the development of secondary-flow as flow passes through a bend. The depth-averaged model is developed on the basis of the orthogonal curvilinear coordinate system to account for the complex geometric boundary and the irregular channels. The influence of secondary-flow is taken into account by adding a nearly triangular shape of velocity profile to the transverse mean velocity. The simulated results are compared with two sets of experimental data conducted by de Vriend & Koch (1977)2 and Rozovskii (1961)* and the results from the moment model (Yeh & kennedy, 1993)* to show the capability of the newly-developed model. Simulation result shows that t

Keywords