RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2007, Vol. 16 >> Issue (1): 7-10.

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NUMERICAL SIMULATION OF INFLUENCE OF RIVERSIDE CONSTRUCTED

WU Zhouhu,ZHANG Na   

  • Received:1900-01-01 Revised:1900-01-01 Online:2007-01-20

Abstract:

Based on the fundamental theory of computing hydraulics and the twodimensional mathematical model of water flow, a numerical simulation of river flood carrying capacity was carried out. Using SMS (Surface Water Modeling System) software, the fluctuation range of flood level was simulated respectively, when the wetland was of different area, width and vegetation roughness coefficients. It is showed that the variation of the wetland width, which led to flood level fluctuation, could be finally summarized to the variation of the river channel width. And the variation of the channel width has more significant influence on the fluctuation of flood level than that of wetland area and roughness coefficients of wetland vegetation. Also it can be concluded that the narrower the width of the channel is, the higher the flood level rises. Certain suggestions were provided for the arrangement of wetland and the selection of wetland vegetation in rivers.

Key words: river, constructed wetland, flood water level, numerical simulation

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