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Application of 3D numerical models in confluence hydrodynamics modelling

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2012
Authors
Đorđević, Dejana
Conference object (Published version)
,
Dejana Đorđević, University of Illinois at Urbana-Champaign
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Abstract
In this paper performance of the SSIIM2 model (3D finite-volume model with the k-ε-type turbulence model closure) in confluence hydrodynamics modelling is assessed using the published experimental data and the author’s field data. It is shown that the transfer of momentum from the tributary to the main channel and variations of the recirculation zone width are modeled satisfactorily, and that the shape of the velocity profiles in the post-confluence channel is captured well. However, velocity magnitudes are underestimated, especially that of the vertical velocity. This may be attributed to the fact that the model is based on the assumption of the hydrostatic pressure distribution, which is not satisfied at the confluence.
Keywords:
river confluence / 3D numerical model / k-ε-type turbulence model closure / transfer of momentum / recirculation zone / SSIIM2 model
Source:
Proceedings of XIX International Conference on Water Resources - CMWR2012, 2012, 1-8
Publisher:
  • University of Illinois at Urbana-Champaign
Funding / projects:
  • Monitoring and Modeling of Rivers and Reservoirs (MORE) - Physical, Chemical, Biological and Morphodynamic Parameters (RS-37009)
  • Urban Drainage Systems as Key Infrastructure in Cities and Towns (RS-37010)
Note:
  • Zbornik radova je na internet stranici http://cmwr2012.cee.illinois.edu/Proceedings.html
[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_grafar_2289
URI
http://cmwr2012.cee.illinois.edu/Proceedings.html
https://grafar.grf.bg.ac.rs/handle/123456789/2289
Collections
  • Катедра за хидротехнику и водно-еколошко инжењерство
Institution/Community
GraFar
TY  - CONF
AU  - Đorđević, Dejana
PY  - 2012
UR  - http://cmwr2012.cee.illinois.edu/Proceedings.html
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2289
AB  - In  this  paper  performance  of  the  SSIIM2  model  (3D  finite-volume  model  with  the  k-ε-type  turbulence  model  closure)  in  confluence  hydrodynamics  modelling  is  assessed  using  the  published  experimental  data  and  the  author’s  field  data.  It  is  shown  that  the  transfer  of  momentum  from  the  tributary  to  the  main  channel  and  variations  of  the  recirculation  zone  width  are  modeled  satisfactorily,  and  that  the  shape  of  the  velocity  profiles  in  the  post-confluence  channel  is  captured  well. However, velocity magnitudes are underestimated, especially that of the vertical velocity. This may  be  attributed  to  the  fact  that  the  model  is  based  on  the  assumption  of  the  hydrostatic  pressure  distribution, which is not satisfied at the confluence.
PB  - University of Illinois at Urbana-Champaign
C3  - Proceedings of XIX International Conference on Water Resources - CMWR2012
T1  - Application of 3D numerical models in confluence hydrodynamics modelling
EP  - 8
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2289
ER  - 
@conference{
author = "Đorđević, Dejana",
year = "2012",
abstract = "In  this  paper  performance  of  the  SSIIM2  model  (3D  finite-volume  model  with  the  k-ε-type  turbulence  model  closure)  in  confluence  hydrodynamics  modelling  is  assessed  using  the  published  experimental  data  and  the  author’s  field  data.  It  is  shown  that  the  transfer  of  momentum  from  the  tributary  to  the  main  channel  and  variations  of  the  recirculation  zone  width  are  modeled  satisfactorily,  and  that  the  shape  of  the  velocity  profiles  in  the  post-confluence  channel  is  captured  well. However, velocity magnitudes are underestimated, especially that of the vertical velocity. This may  be  attributed  to  the  fact  that  the  model  is  based  on  the  assumption  of  the  hydrostatic  pressure  distribution, which is not satisfied at the confluence.",
publisher = "University of Illinois at Urbana-Champaign",
journal = "Proceedings of XIX International Conference on Water Resources - CMWR2012",
title = "Application of 3D numerical models in confluence hydrodynamics modelling",
pages = "8-1",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2289"
}
Đorđević, D.. (2012). Application of 3D numerical models in confluence hydrodynamics modelling. in Proceedings of XIX International Conference on Water Resources - CMWR2012
University of Illinois at Urbana-Champaign., 1-8.
https://hdl.handle.net/21.15107/rcub_grafar_2289
Đorđević D. Application of 3D numerical models in confluence hydrodynamics modelling. in Proceedings of XIX International Conference on Water Resources - CMWR2012. 2012;:1-8.
https://hdl.handle.net/21.15107/rcub_grafar_2289 .
Đorđević, Dejana, "Application of 3D numerical models in confluence hydrodynamics modelling" in Proceedings of XIX International Conference on Water Resources - CMWR2012 (2012):1-8,
https://hdl.handle.net/21.15107/rcub_grafar_2289 .

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