Probability of Sediment Incipient Motion Under Complex Flows
文献类型：期刊论文
| 作者 | Liu CR(刘春嵘) ; Deng LY(邓丽颖); 呼和敖德
|
| 刊名 | China Ocean Engineering
 |
| 出版日期 | 2010 |
| 卷号 | 24期号:1页码:93-104 |
| ISSN号 | 0890-5487 |
| 合作状况 | 国内 |
| 中文摘要 | 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. |
| 类目[WOS] | Engineering, Civil ; Engineering, Ocean ; Engineering, Mechanical ; Water Resources |
| 研究领域[WOS] | Engineering ; Water Resources |
| 关键词[WOS] | BACKWARD-FACING STEP ; NUMERICAL-SIMULATION ; LOCAL SCOUR ; WAVE ACTION ; TRANSPORT ; THRESHOLD ; MOVEMENT ; CURRENTS |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10602017] |
| 原文出处 | http://www.cnki.com.cn/Article/CJFDTotal-CHIU201001009.htm |
| 语种 | 英语 |
| WOS记录号 | WOS:000276828200008 |
| 公开日期 | 2011-03-01 ; 2011-03-30 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/43607]  |
| 专题 | 力学研究所_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. |
入库方式： OAI收割
来源：力学研究所
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