Analytical solution of velocity distribution for flow through submerged large deflection flexible vegetation
文献类型：期刊论文
| 作者 | Wang WJ; Huai WX; Zeng YH; Zhou JF(周济福)
|
| 刊名 | Applied Mathematics and Mechanics
 |
| 出版日期 | 2015-01 |
| 卷号 | 36期号:1页码:107-120 |
| 通讯作者邮箱 | wxhuai@whu.edu.cn |
| 关键词 | analytical velocity distribution linear drag force flexible vegetation large deflection mixing length theory |
| ISSN号 | 0253-4827 |
| 产权排序 | [Wang, Wei-jie; Huai, Wen-xin; Zeng, Yu-hong] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China; [Zhou, Ji-fu] Chinese Acad Sci, Inst Mech, Beijing 100192, Peoples R China |
| 通讯作者 | Huai, WX (reprint author), Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China. |
| 合作状况 | 国内 |
| 中文摘要 | An analytical solution for predicting the vertical distribution of streamwise mean velocity in an open channel flow with submerged flexible vegetation is proposed when large bending occurs. The flow regime is separated into two horizontal layers: a vegetation layer and a free water layer. In the vegetation layer, a mechanical analysis for the flexible vegetation is conducted, and an approximately linear relationship between the drag force of bending vegetation and the streamwise mean flow velocity is observed in the case of large deflection, which differes significantly from the case of rigid upright vegetation. Based on the theoretical analysis, a linear streamwise drag force-mean flow velocity expression in the momentum equation is derived, and an analytical solution is obtained. For the free water layer, a new expression is presented, replacing the traditional logarithmic velocity distribution, to obtain a zero velocity gradient at the water surface. Finally, the analytical predictions are compared with published experimental data, and the good agreement demonstrates that this model is effective for the open channel flow through the large deflection flexible vegetation. |
| 学科主题 | Mathematics ; Mechanics |
| 分类号 | 二类/Q2 |
| 收录类别 | SCI ; EI ; CSCD |
| 资助信息 | Project supported by the National Natural Science Foundation of China (Nos. 11372232 and 51479007), the Specialized Research Fund for the Doctoral Program of Higher Education (No. 20130141110016), and the State Water Pollution Control and Management of Major Special Science and Technology (No. 2012ZX07205-005-03) |
| 原文出处 | http://dx.doi.org/10.1007/s10483-015-1897-9 |
| 语种 | 英语 |
| CSCD记录号 | CSCD:5413787 |
| 公开日期 | 2015-03-17 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49638]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Wang WJ,Huai WX,Zeng YH,et al. Analytical solution of velocity distribution for flow through submerged large deflection flexible vegetation[J]. Applied Mathematics and Mechanics,2015,36(1):107-120. |
| APA | Wang WJ,Huai WX,Zeng YH,&Zhou JF.(2015).Analytical solution of velocity distribution for flow through submerged large deflection flexible vegetation.Applied Mathematics and Mechanics,36(1),107-120. |
| MLA | Wang WJ,et al."Analytical solution of velocity distribution for flow through submerged large deflection flexible vegetation".Applied Mathematics and Mechanics 36.1(2015):107-120. |
入库方式： OAI收割
来源：力学研究所
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