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Numerical Simulation of 3D Flow at Right-angled Confuence with and without Upstream Planform Curvature

Authorized Users Only
2010
Authors
Đorđević, Dejana
Contributors
Tao, Jianhua
Chen, Qiuwen
Liong, Shie-Yui
Conference object (Published version)
,
Chemical Industry Press, Beijing
Metadata
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Abstract
This paper aims at studying the effect of upstream planform curvature on the flow in the confluence hydrodynamics zone. To do this, a 3D numerical model is used for simulation of flow at right-angled confluences with three different planforms, all of them having the straight main-canal. These are the confluences with: 1) the straight tributary canal, 2) the right bend and 3) the left bend in the tributary. Special attention is paid to the flow defection and flow separation zones since the former affects transfer of momentum from the tributary to the main canal and the later affects transport capacity of the post-confluence canal. Results are discussed in terms of: 1) variations of the flow angles along the junction lines at different elevations above the bed, 2) variations of recirculation zone length and maximal width throughout the flow depth and 3) streamwise velocity distributions in the cross-sections downstream of the confluence.
Keywords:
river confluence / confluence hydrodynamics zone / upstream planform curvature / 3D numerical model
Source:
Proceedings of the 9th International Conference on Hydroinformatics 2010, 2010, 1, 299-307
Publisher:
  • Chemical Industry Press, Beijing
Funding / projects:
  • Upravljanje vodnim akumukacijama i njihova zaštita (RS-22011)
  • Rizici u primeni Okvirnih direktiva Evropske unije u Republici Srbiji (RS-22017)

ISBN: 978-7-122-09314-1

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_grafar_2292
URI
https://grafar.grf.bg.ac.rs/handle/123456789/2292
Collections
  • Катедра за хидротехнику и водно-еколошко инжењерство
Institution/Community
GraFar
TY  - CONF
AU  - Đorđević, Dejana
PY  - 2010
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2292
AB  - This paper aims at studying the effect of upstream planform curvature on the flow in the confluence	hydrodynamics zone. To	do this, a 3D numerical model is used for simulation of flow at right-angled 
confluences with three different planforms, all of them having the straight main-canal. These are the confluences with: 1) the straight tributary canal, 2) the right bend and 3) the left bend in the tributary. Special attention is paid to the flow defection and flow separation zones since the	former affects transfer of momentum from the tributary to the main canal and the later affects transport capacity of the post-confluence canal. Results are discussed in terms of: 1) variations of the flow angles along the junction lines at different elevations above the bed, 2)	variations	of recirculation zone length and maximal width throughout the flow depth and 3) streamwise velocity distributions in the cross-sections downstream of the confluence.
PB  - Chemical Industry Press, Beijing
C3  - Proceedings of the 9th International Conference on Hydroinformatics 2010
T1  - Numerical Simulation of 3D Flow at Right-angled Confuence  with and without Upstream Planform Curvature
EP  - 307
SP  - 299
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2292
ER  - 
@conference{
author = "Đorđević, Dejana",
year = "2010",
abstract = "This paper aims at studying the effect of upstream planform curvature on the flow in the confluence	hydrodynamics zone. To	do this, a 3D numerical model is used for simulation of flow at right-angled 
confluences with three different planforms, all of them having the straight main-canal. These are the confluences with: 1) the straight tributary canal, 2) the right bend and 3) the left bend in the tributary. Special attention is paid to the flow defection and flow separation zones since the	former affects transfer of momentum from the tributary to the main canal and the later affects transport capacity of the post-confluence canal. Results are discussed in terms of: 1) variations of the flow angles along the junction lines at different elevations above the bed, 2)	variations	of recirculation zone length and maximal width throughout the flow depth and 3) streamwise velocity distributions in the cross-sections downstream of the confluence.",
publisher = "Chemical Industry Press, Beijing",
journal = "Proceedings of the 9th International Conference on Hydroinformatics 2010",
title = "Numerical Simulation of 3D Flow at Right-angled Confuence  with and without Upstream Planform Curvature",
pages = "307-299",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2292"
}
Đorđević, D.. (2010). Numerical Simulation of 3D Flow at Right-angled Confuence  with and without Upstream Planform Curvature. in Proceedings of the 9th International Conference on Hydroinformatics 2010
Chemical Industry Press, Beijing., 1, 299-307.
https://hdl.handle.net/21.15107/rcub_grafar_2292
Đorđević D. Numerical Simulation of 3D Flow at Right-angled Confuence  with and without Upstream Planform Curvature. in Proceedings of the 9th International Conference on Hydroinformatics 2010. 2010;1:299-307.
https://hdl.handle.net/21.15107/rcub_grafar_2292 .
Đorđević, Dejana, "Numerical Simulation of 3D Flow at Right-angled Confuence  with and without Upstream Planform Curvature" in Proceedings of the 9th International Conference on Hydroinformatics 2010, 1 (2010):299-307,
https://hdl.handle.net/21.15107/rcub_grafar_2292 .

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