Knowledge Management System of Institue of Mechanics, CAS
| Probability of Sediment Incipient Motion Under Complex Flows | |
Liu CR(刘春嵘) ; Deng LY(邓丽颖); 呼和敖德
| |
| Source Publication | China Ocean Engineering
 |
| 2010 | |
| Volume | 24Issue:1Pages:93-104 |
| ISSN | 0890-5487 |
| Abstract | 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 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000276828200008 |
| WOS Keyword | BACKWARD-FACING STEP ; NUMERICAL-SIMULATION ; LOCAL SCOUR ; WAVE ACTION ; TRANSPORT ; THRESHOLD ; MOVEMENT ; CURRENTS |
| WOS Research Area | Engineering ; Water Resources |
| WOS Subject | Engineering, Civil ; Engineering, Ocean ; Engineering, Mechanical ; Water Resources |
| Funding Organization | National Natural Science Foundation of China [10602017] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/43607 |
| Collection | 水动力学与海洋工程重点实验室(2009-2011) |
| Recommended Citation 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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 098.pdf（1070KB） | 开放获取 | -- | View Download | |||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment