IGSNRR OpenIR
Distribution of primary and secondary currents in sine-generated bends
He, Li
2018
Source PublicationWATER SA
ISSN0378-4738
Volume44Issue:1Pages:118-129
Corresponding AuthorHe, Li(heli@ignrr.ac.cn)
AbstractThe secondary circulation in a meandering channel redistributes the velocity over the bend. However, the shift of primary flow by secondary currents is not quantitatively understood, due to the difficulty in isolating the role of curvature-driven secondary flow from that of topography-driven secondary flow in bed-deformed meanders. The influences of curvature-driven and topography-driven secondary currents on the redistribution of primary flow in sine-generated meandering channels were examined by CCHE2D. The model is calibrated using data measured in two sets of laboratory experiments including flat-bed flow and mobile-bed flow. Analysis indicated that topography-induced current mainly contributes to the redistribution of primary flow from inner to outer bank in the curved channels, rather than the secondary flow driven by curvature.
Keywordprimary flow secondary flow meander numerical analysis
DOI10.4314/wsa.v44i1.14
WOS KeywordCURVED OPEN CHANNELS ; MEANDER BENDS ; ALLUVIAL CHANNEL ; RIVER MEANDERS ; FLOW STRUCTURE ; MODEL ; STREAMS ; TURBULENCE ; EVOLUTION
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFC0402303] ; National Natural Science Foundation of China[51579230] ; National Natural Science Foundation of China[51779242] ; National Natural Science Foundation of China[41330751] ; National Natural Science Foundation of China[51509234] ; National Natural Science Foundation of China[51109198] ; National Key Technology Research and Development Program[2012BAB02B02] ; National Program on Key Basic Research Project[2011CB403305]
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; National Key Technology Research and Development Program ; National Program on Key Basic Research Project
WOS Research AreaWater Resources
WOS SubjectWater Resources
WOS IDWOS:000426764300014
PublisherWATER RESEARCH COMMISSION
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/57173
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHe, Li
AffiliationChinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
He, Li. Distribution of primary and secondary currents in sine-generated bends[J]. WATER SA,2018,44(1):118-129.
APA He, Li.(2018).Distribution of primary and secondary currents in sine-generated bends.WATER SA,44(1),118-129.
MLA He, Li."Distribution of primary and secondary currents in sine-generated bends".WATER SA 44.1(2018):118-129.
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