典型文献
Incipient sediment motion in vegetated open-channel flows predicted by critical flow velocity
文献摘要：
Incipient sediment motion plays a key role in scouring and bed load transport.However,the incipient sediment motion in the vegetated open-channel flows has yet to be fully understood.This study aims to quantify the critical conditions of the sediment particle movement in the presence of emergent and submerged vegetation.A new formula of the critical flow velocity was proposed to predict the incipient sediment motion based on the force balance equation of a sediment particle and the assumption that the velocity distribution in the bed roughness boundary layer fits the logarithmic law.Analysis of the derived formula revealed that the critical flow velocity for incipient sediment motion decreases with the increase in vegetation density.The proposed formula agrees well with the experimental data in the literature,thereby implying that the critical flow velocity can effectively quantify the incipient sediment motion in the vegetated open channel flows.
文献关键词：
中图分类号：
作者姓名：
Xiang Wang;Shuolin Li;Zhong-hua Yang;Wen-xin Huai
作者机构：
State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China;Department of Civil and Environmental Engineering,Duke University,Durham,NC,USA;Nicholas School of the Environment and Earth Science,Duke University,Durham,NC,USA
文献出处：
引用格式：
[1]Xiang Wang;Shuolin Li;Zhong-hua Yang;Wen-xin Huai-.Incipient sediment motion in vegetated open-channel flows predicted by critical flow velocity)[J].水动力学研究与进展B辑,2022(01):63-68
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AB值：
0.478178
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