IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Particle image velocimetry measurements of vortex structures in stilling basin of multi-horizontal submerged jets
Chen Jian-gang1,2; Zhang Jian-min1; Xu Wei-lin1; Li Shuai1; He Xiao-long1
Corresponding AuthorZhang, JM
2013-08-01
Source PublicationJOURNAL OF HYDRODYNAMICS
ISSN1001-6058
Volume25Issue:4Pages:556-563
SubtypeArticle
AbstractMeasurements 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.
KeywordMulti-horizontal Submerged Jets Particle Image Velocimetry (Piv) Vortex Structure Stilling Basin Hydraulic Jump
WOS HeadingsScience & Technology ; Technology
DOI10.1016/S1001-6058(11)60396-0
WOS Subject ExtendedMechanics
Indexed BySCI
WOS KeywordFLOW CHARACTERISTICS ; MODELS
Language英语
WOS SubjectMechanics
WOS IDWOS:000323996200009
Funding OrganizationProject 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) ; National Natural Science Foundation of China(51279118 ; Key Projects in the National Science and Technology Pillar Program(2008BAB29B04) ; 50479062)
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6546
Collection山地表生过程与生态调控重点实验室
山地灾害与地表过程重点实验室
Affiliation1.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
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
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.
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