IMHE OpenIR  > 山地灾害与地表过程重点实验室
Numerical investigation of air-water flow properties over steep flat and pooled stepped spillways
Li, Shuai1,2,3; Zhang, Jianmin4; Xu, Weilin4
2018
Source PublicationJOURNAL OF HYDRAULIC RESEARCH
ISSN0022-1686
EISSN1814-2079
Volume56Issue:1Pages:1-14
SubtypeArticle
AbstractThis study numerically investigated eight configurations of stepped spillways with 45 degrees slopes. The rounded and sharped configurations exhibited the highest and second highest air concentrations, respectively. The baffled-shifted rounded configuration had the lowest air concentration and the highest turbulent dissipation rate and water head dissipation rate. The largest interfacial velocities and the smallest frictional drag were observed for the rounded configuration. The turbulent dissipation rate of the rounded configuration was higher than that of the sharped configuration. The silled-shifted sharped configuration had the lowest turbulent dissipation rate. Intense turbulent dissipation rates occurred in the mixing layer and the interfacial region with air concentrations of 90%. The residual energy of the baffled-shifted rounded configuration was approximately 8% and 13% lower than that of the rounded and sharped configurations, respectively. The highest residual energy under the baffled-shifted sharped configuration appeared to be associated with the lowest turbulent dissipation rate.
KeywordAir concentration air-water flows flow resistance stepped spillway turbulent dissipation rate velocity distribution water head dissipation ratio
DOI10.1080/00221686.2017.1286393
Indexed BySCI
WOS KeywordSKIMMING FLOWS ; ENERGY-DISSIPATION ; TURBULENCE ; CHUTE ; ENTRAINMENT ; UNCERTAINTY ; SIMULATION ; ROUGHNESS ; AERATION ; CHANNELS
Language英语
Quartile2区
Funding ProjectCAS "Light of West China" Program[Y6R2220220] ; Young Scientists Research Fund of the Institute of Mountain Hazards and Environment CAS[Y6K2080080] ; National Natural Science Foundation of China[51579165] ; National Natural Science Foundation of China[51279118] ; Ministry of Science and Technology of China[2013CB035905]
TOP
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Civil ; Water Resources
WOS IDWOS:000427885800001
Funding OrganizationCAS "Light of West China" Program ; Young Scientists Research Fund of the Institute of Mountain Hazards and Environment CAS ; National Natural Science Foundation of China ; Ministry of Science and Technology of China
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/22851
Collection山地灾害与地表过程重点实验室
Corresponding AuthorZhang, Jianmin
Affiliation1.Chinese Acad Sci, State Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
3.Minist Water Conservancy & Power, Chengdu 610041, Sichuan, Peoples R China
4.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, 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
Li, Shuai,Zhang, Jianmin,Xu, Weilin. Numerical investigation of air-water flow properties over steep flat and pooled stepped spillways[J]. JOURNAL OF HYDRAULIC RESEARCH,2018,56(1):1-14.
APA Li, Shuai,Zhang, Jianmin,&Xu, Weilin.(2018).Numerical investigation of air-water flow properties over steep flat and pooled stepped spillways.JOURNAL OF HYDRAULIC RESEARCH,56(1),1-14.
MLA Li, Shuai,et al."Numerical investigation of air-water flow properties over steep flat and pooled stepped spillways".JOURNAL OF HYDRAULIC RESEARCH 56.1(2018):1-14.
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