The mechanism of energy loss and transition in a flow with submerged vegetation
文献类型：期刊论文
| 作者 | Huai WX; Han J; Geng C; Zhou JF(周济福) ; Zeng YH; Zhou JF
|
| 刊名 | Advances in Water Resources
 |
| 出版日期 | 2010 |
| 卷号 | 33期号:6页码:635-639 |
| 通讯作者邮箱 | zhoujf@imech.ac.cn |
| ISSN号 | 0309-1708 |
| 通讯作者 | Zhou JF |
| 合作状况 | 国内 |
| 中文摘要 | The mechanism of energy balance in an open-channel flow with submerged vegetation was investigated. The energy borrowed from the local flow, energy spending caused by vegetation drag and flow resistance, and energy transition along the water depth were calculated on the basis of the computational results of velocity and Reynolds stress. Further analysis showed that the energy spending in a cross-section was a maximum around the top of the vegetation, and its value decreased progressively until reaching zero at the flume bed or water surface. The energy borrowed from the local flow in the vegetated region could not provide for spending; therefore, surplus borrowed energy in the non-vegetated region was transmitted to the vegetated region. In addition, the total energy transition in the cross-section was zero; therefore, the total energy borrowed from the flow balanced the energy loss in the whole cross-section. At the same time, we found that there were three effects of vegetation on the flow: turbulence restriction due to vegetation, turbulence source due to vegetation and energy transference due to vegetation, where the second effect was the strongest one. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved. |
| 类目[WOS] | Water Resources |
| 研究领域[WOS] | Water Resources |
| 关键词[WOS] | VERTICAL VELOCITY DISTRIBUTION ; OPEN-CHANNEL FLOW ; FLEXIBLE VEGETATION ; MODEL ; RESISTANCE ; STREAMS |
| 收录类别 | SCI |
| 资助信息 | Natural Science Foundation of China [50679061, 50709025] |
| 原文出处 | http://dx.doi.org/10.1016/j.advwatres.2010.03.006 |
| 语种 | 英语 |
| WOS记录号 | WOS:000278972700003 |
| 公开日期 | 2011-03-01 ; 2011-03-30 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/43583]  |
| 专题 | 力学研究所_环境力学重点实验室(2009-2011) |
| 通讯作者 | Zhou JF |
| 推荐引用方式 GB/T 7714 | Huai WX,Han J,Geng C,et al. The mechanism of energy loss and transition in a flow with submerged vegetation[J]. Advances in Water Resources,2010,33(6):635-639. |
| APA | Huai WX,Han J,Geng C,周济福,Zeng YH,&Zhou JF.(2010).The mechanism of energy loss and transition in a flow with submerged vegetation.Advances in Water Resources,33(6),635-639. |
| MLA | Huai WX,et al."The mechanism of energy loss and transition in a flow with submerged vegetation".Advances in Water Resources 33.6(2010):635-639. |
入库方式： OAI收割
来源：力学研究所
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