Effects of river width changes on flow characteristics based on flume experiment
文献类型：期刊论文
| 作者 | WANG Xie-kang; WANG Bing-jie; LIU Xing-nian; Zhang Li-qiong |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2016-02 |
| 卷号 | 13期号:2页码:361-368 |
| 关键词 | Gradual channel transition Flow pattern Experimental study Numerical simulation |
| ISSN号 | 1672-6316 |
| 通讯作者 | WANG Xie-kang |
| 英文摘要 | The rapid changes in flow pattern due to varying channel widths will make significantly impact on the hydraulic structures and evolutions of open channel. To better understand the impact of varying width, a flume experiment with adjustable width and a depth-averaged two-dimension numerical model were used to analyze the variations of flow parameters. Our experimental results showed that flow velocity gradually increased with decreasing water depth in converging region, and decreased with increasing water depth in diverging zones. It was also found that the turbulence intensity laws in three directions were not agreed with the theoretical relationships proposed by Nezu and Nakagawa in 1993 in straight open channel flows. The flow in the channel with varying width may change from the supercritical flow to the subcritical flow as a function of Froude number. Our numerical simulations with different flow rates showed that most of the hydraulic jumps in diverging region were submerged jump and the degree of submergence increased with increasing flow rate in gradual channel transition. When the flow rate increased, the range of supercritical flow rapidly decreased and the flow changed from the supercritical condition to the subcritical condition in diverging sections. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/14081]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2016_Vol13 No.2 |
| 推荐引用方式 GB/T 7714 | WANG Xie-kang,WANG Bing-jie,LIU Xing-nian,et al. Effects of river width changes on flow characteristics based on flume experiment[J]. Journal of Mountain Science,2016,13(2):361-368. |
| APA | WANG Xie-kang,WANG Bing-jie,LIU Xing-nian,&Zhang Li-qiong.(2016).Effects of river width changes on flow characteristics based on flume experiment.Journal of Mountain Science,13(2),361-368. |
| MLA | WANG Xie-kang,et al."Effects of river width changes on flow characteristics based on flume experiment".Journal of Mountain Science 13.2(2016):361-368. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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