Particle image velocimetry measurements of vortex structures in stilling basin of multi-horizontal submerged jets
文献类型：期刊论文
| 作者 | Chen Jian-gang1,2 ; Zhang Jian-min1; Xu Wei-lin1; Li Shuai1; He Xiao-long1
|
| 刊名 | JOURNAL OF HYDRODYNAMICS
 |
| 出版日期 | 2013-08-01 |
| 卷号 | 25期号:4页码:556-563 |
| 关键词 | multi-horizontal submerged jets Particle Image Velocimetry (PIV) vortex structure stilling basin hydraulic jump |
| ISSN号 | 1001-6058 |
| 通讯作者 | Zhang, JM |
| 合作状况 | 国内 |
| 英文摘要 | Measurements of turbulent flow fields in a stilling basin of multi-horizontal submerged jets were made with the single-camera Particle Image Velocimetry (Pry). The particle images were captured, processed, and subsequently used to characterize the flow in terms of the 2-D velocity and vorticity distributions. This study shows that the maximum close-to-bed velocity in the stilling basin is approximately reduced by 60%, comparing to the jet velocity at the outlet of orifices. The jet velocity is distributed evenly at the latter half of the stilling basin and the time-averaged velocity of the cross section is reduced by 77%-85%, comparing to the jet velocity at the outlet of orifices. These results show that the vortices with horizontal axes are continuously repeated during the form-merge-split-disappear process. The vertical vortices are continuously formed and disappeared, they appear randomly near the slab and intermittently reach the slab of the stilling basin. The range of these vortices is small. Vortices with horizontal axes and vertical vortices do not coincide in space and the vortices with horizontal axes only affect the position of the tail of the vertical vortices attached to the slab of the stilling basin. |
| WOS标题词 | Science & Technology ; Technology |
| 分类号 | TV135 |
| 类目[WOS] | Mechanics |
| 研究领域[WOS] | Mechanics |
| 关键词[WOS] | FLOW CHARACTERISTICS ; MODELS |
| 收录类别 | SCI |
| 资助信息 | Project supported by the National Natural Science Foundation of China (Grant Nos. 51279118, 50479062);the Key Projects in the National Science and Technology Pillar Program (Grant No. 2008BAB29B04) |
| 语种 | 英语 |
| WOS记录号 | WOS:000323996200009 |
| 公开日期 | 2013-11-30 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6546]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 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 Jian-gang,Zhang Jian-min,Xu Wei-lin,et al. Particle image velocimetry measurements of vortex structures in stilling basin of multi-horizontal submerged jets[J]. JOURNAL OF HYDRODYNAMICS,2013,25(4):556-563. |
| APA | Chen Jian-gang,Zhang Jian-min,Xu Wei-lin,Li Shuai,&He Xiao-long.(2013).Particle image velocimetry measurements of vortex structures in stilling basin of multi-horizontal submerged jets.JOURNAL OF HYDRODYNAMICS,25(4),556-563. |
| MLA | Chen Jian-gang,et al."Particle image velocimetry measurements of vortex structures in stilling basin of multi-horizontal submerged jets".JOURNAL OF HYDRODYNAMICS 25.4(2013):556-563. |
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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