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Experimental Research on the Effects of Type and Submergence Degree of Aquatic Vegetation on the Vertical Flow Velocity Distributions of Rivers
Guo-ying WU, Wen-jiao ZHANG, Jia-hao SHI, Cai-ping WU
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Experimental Research on the Effects of Type and Submergence Degree of Aquatic Vegetation on the Vertical Flow Velocity Distributions of Rivers
The rigid steel and flexible spring materials are used to model different types of aquatic vegetation. The effects of type and submergence of aquatic vegetation on the vertical flow velocity distributions of rivers are explored by using physical experiments. The results of physical experiments show that the vertical flow velocity distribution of rigid materials under different submergence degrees exhibits a similar trend as that of flexible ones. The vertical flow velocity distributions of both the rigid and flexible materials exhibit stratification phenomena. The critical values of the stratification phenomena for the different types of aquatic vegetation are different. This is due to the different mechanical interaction mechanisms between the aquatic vegetation and the water flow for the different types of aquatic vegetation.
aquatic vegetation / submergence degree / river flow velocity / vertical distributions / rigid and flexible materials {{custom_keyword}} /
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