Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Numerical Modeling for Hydrodynamics and Near-Surface Flow Patterns of a Tidal Confluence
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing China; College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, China; National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, China.
College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, China.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0003-0820-617X
Centre of Excellence in Water Resources Engineering, University of Engineering and Technology, Lahore, Pakistan.
Vise andre og tillknytning
2020 (engelsk)Inngår i: Journal of Coastal Research, ISSN 0749-0208, E-ISSN 1551-5036, Vol. 36, nr 2, s. 295-312Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Because of the flow influx of tributaries, a confluence forms a unique environment carrying interesting hydrodynamic features and other attributes. The understanding of flow behavior here is important, particularly if it is on a tidally influenced channel in a harbor metropolitan. Because of communal requirements, there is a possibility of building wading structures, which may interplay with the flow in this zone. The knowledge of unidirectional river or flume confluences so far is not readily applicable for similar features in channels near coastal areas that have tidal flow in addition to river runoff. In this study, a tidal confluence that has a highly dynamic bidirectional flow is investigated. Near-surface flow patterns in a tidal cycle are simulated by using a numerical model. A field survey provides the bathymetry, time-series boundary conditions, and corresponding verification data. Good agreement is reached between calculated and measured results. Based on the condition of tidal current, four scenarios are selected for which confluence flow patterns are observed, both spatially and temporally. The results indicate that at least one recirculation is always in the tidal confluence for all flow conditions, which rotates counterclockwise for the ebb flow and clockwise for the flood flow. In addition, there is no absolute slack water condition at the tidal junction in the study area. The study also finds that the flows of all three connected channels at the confluence change in a looped pattern with respect to one another. Furthermore, the study reports unique relationships among the ratios of different flows.

sted, utgiver, år, opplag, sider
Coastal Education & Research Foundation [CERF] , 2020. Vol. 36, nr 2, s. 295-312
Emneord [en]
Hydrodynamic features, tidal channel junction, Delft3D, hydraulic modeling, Sanjiangkou, numerical simulation, in situ measurements
HSV kategori
Forskningsprogram
Strömningslära
Identifikatorer
URN: urn:nbn:se:ltu:diva-76424DOI: 10.2112/JCOASTRES-D-19-00058.1ISI: 000516577400009Scopus ID: 2-s2.0-85080144182OAI: oai:DiVA.org:ltu-76424DiVA, id: diva2:1361944
Merknad

Validerad;2020;Nivå 2;2020-02-28 (alebob)

Tilgjengelig fra: 2019-10-17 Laget: 2019-10-17 Sist oppdatert: 2023-10-28bibliografisk kontrollert

Open Access i DiVA

fulltext(2128 kB)116 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 2128 kBChecksum SHA-512
b0c09cac723eb834706d425637218ff89b902a0f63a6e58fc2776b1e86fe82ed43e4c10a45eddf1437fe4f6e01b604d266f96e7b877616123bfcb1dc25819c97
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstScopus

Person

Xie, Qiancheng

Søk i DiVA

Av forfatter/redaktør
Xie, Qiancheng
Av organisasjonen
I samme tidsskrift
Journal of Coastal Research

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 116 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 138 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf