Characteristics of the Velocity Distribution in a Hydraulic Jump Stilling Basin with Five Parallel Offset Jets in a Twin-Layer Configuration
文献类型：期刊论文
| 作者 | Chen, J. G.1,2; Zhang, J. M.1; Xu, W. L.1; Peng, Y.1 |
| 刊名 | JOURNAL OF HYDRAULIC ENGINEERING
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 140期号:2页码:208-217 |
| 关键词 | Energy dissipation Stilling basin Flow pattern Parallel jets Offset height Hydraulic jump |
| ISSN号 | 0733-9429 |
| 通讯作者 | J.M. Zhang |
| 英文摘要 | The flow structure of vertical and horizontal planes in a stilling basin with five parallel offset jets in a twin-layer configuration for four offset ratios (S1/h=1,2,3,4) has been investigated. The velocity distribution was measured, processed, and subsequently used to characterize the flow structure. The flow pattern in the stilling basin exhibits a mixing flow pattern of jets and hydraulic jumps. As the downstream water depth increases in the stilling basin, five different flow patterns appear successively: free jets, hydraulic jumps, submerged jets and hydraulic jumps, mixed submerged jets and critical jumps, and mixed submerged jets and submerged jumps. The results indicate that the velocity distributions in the vertical and horizontal planes of the lower-layer orifices and in the potential core region of the upper-layer orifices are similar to the classical jet; in other regions, the velocity distribution is similar to the hydraulic jump. In addition, the energy dissipation ratio increases with the increasing Froude number, with a value of greater than 70% at F>8.0. The energy dissipation ratio in the stilling basin with five parallel offset jets in a twin-layer configuration is, on average, 5% larger than that of the SBJ basin and 13% larger than that of the classical jump basin. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 学科主题 | 水利工程 |
| 类目[WOS] | Engineering, Civil ; Engineering, Mechanical ; Water Resources |
| 研究领域[WOS] | Engineering ; Water Resources |
| 关键词[WOS] | HORIZONTAL SUBMERGED JETS ; TURBULENT WALL JETS ; PLANE JETS ; FLOW CHARACTERISTICS ; VERTICAL DROP ; FREE-SURFACE ; SQUARE JET ; FIELD ; POOL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000333446600009 |
| 公开日期 | 2014-08-22 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7127]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, J. G.,Zhang, J. M.,Xu, W. L.,et al. Characteristics of the Velocity Distribution in a Hydraulic Jump Stilling Basin with Five Parallel Offset Jets in a Twin-Layer Configuration[J]. JOURNAL OF HYDRAULIC ENGINEERING,2014,140(2):208-217. |
| APA | Chen, J. G.,Zhang, J. M.,Xu, W. L.,&Peng, Y..(2014).Characteristics of the Velocity Distribution in a Hydraulic Jump Stilling Basin with Five Parallel Offset Jets in a Twin-Layer Configuration.JOURNAL OF HYDRAULIC ENGINEERING,140(2),208-217. |
| MLA | Chen, J. G.,et al."Characteristics of the Velocity Distribution in a Hydraulic Jump Stilling Basin with Five Parallel Offset Jets in a Twin-Layer Configuration".JOURNAL OF HYDRAULIC ENGINEERING 140.2(2014):208-217. |
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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