Probability of Sediment Incipient Motion Under Complex Flows

IMECH-IR > 水动力学与海洋工程重点实验室(2009-2011)

	Probability of Sediment Incipient Motion Under Complex Flows
	Liu CR(刘春嵘); Deng LY(邓丽颖); 呼和敖德
发表期刊	China Ocean Engineering
	2010
卷号	24 期号:1 页码:93-104
ISSN	0890-5487
摘要	Presented in this paper is a mathematical model to calculate the probability of the sediment incipient motion, in which the effects of the fluctuating pressure and the seepage are considered. The instantaneous bed shear velocity and the pressure gradient on the bed downstream of the backward-facing step flow are obtained according to the PIV measurements. It is found that the instantaneous pressure gradient on the bed obeys normal distribution. The probability of the sediment incipient motion on the bed downstream of the backward-facing step flow is given by the mathematical model. The predicted results agree well with the experiment in the region downstream of the reattachment point while a large discrepancy between the theory and experiment is seen in the region near the reattachment point. The possible reasons for this discrepancy are discussed.
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000276828200008
关键词[WOS]	BACKWARD-FACING STEP ; NUMERICAL-SIMULATION ; LOCAL SCOUR ; WAVE ACTION ; TRANSPORT ; THRESHOLD ; MOVEMENT ; CURRENTS
WOS研究方向	Engineering ; Water Resources
WOS类目	Engineering, Civil ; Engineering, Ocean ; Engineering, Mechanical ; Water Resources
项目资助者	National Natural Science Foundation of China [10602017]
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/43607
专题	水动力学与海洋工程重点实验室(2009-2011)
推荐引用方式 GB/T 7714	Liu CR,Deng LY,呼和敖德. Probability of Sediment Incipient Motion Under Complex Flows[J]. China Ocean Engineering,2010,24,1,:93-104.
APA	刘春嵘,Deng LY,&呼和敖德.(2010).Probability of Sediment Incipient Motion Under Complex Flows.China Ocean Engineering,24(1),93-104.
MLA	刘春嵘,et al."Probability of Sediment Incipient Motion Under Complex Flows".China Ocean Engineering 24.1(2010):93-104.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
098.pdf（1070KB）			开放获取	--	浏览下载