Two-dimensional analytical solution for compound channel flows with vegetated floodplains

Springer Science and Business Media LLC - Tập 30 - Trang 1121-1130 - 2009
Wen-xin Huai1, Min Gao1, Yu-hong Zeng1, Dan Li1
1State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, P. R. China

Tóm tắt

This paper presents a two-dimensional analytical solution for compound channel flows with vegetated floodplains. The depth-integrated N-S equation is used for analyzing the steady uniform flow. The effects of the vegetation are considered as the drag force item. The secondary currents are also taken into account in the governing equations, and the preliminary estimation of the secondary current intensity coefficient K is discussed. The predicted results for the straight channels and the apex cross-section of meandering channels agree well with experimental data, which shows that the analytical model presented here can be applied to predict the flow in compound channels with vegetated floodplains.

Tài liệu tham khảo

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