Depth-averaged modeling of flows and sediment transport in open-channel with submerged vegetation

Sung Uk Choi, Hyeongsik Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a depth-averaged model for the numerical simulations of flow and sediment transport in open-channel flows with submerged vegetation. Since the flow structure and the concentration profile in the open-channel with submerged vegetation are different from those in the plain open-channel, the conventional methods of estimating the friction coefficient and sediment load should be modified. The vertical structure model with k-ε turbulence closure is used to adjust the relevant parameters in the depth-averaged model. The impacts of model modifications are provided and discussed. Using the developed model, flow and suspended sediment transport through submerged vegetation are simulated, and predicted results are compared with experimental data.

Original languageEnglish
Title of host publicationProceedings of the 2004 World Water and Environmetal Resources Congress
Subtitle of host publicationCritical Transitions in Water and Environmental Resources Management
EditorsG. Sehlke, D.F. Hayes, D.K. Stevens
Pages2648-2657
Number of pages10
Publication statusPublished - 2004 Dec 1
Event2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management - Salt Lake City, UT, United States
Duration: 2004 Jun 272004 Jul 1

Publication series

NameProceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management

Other

Other2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management
CountryUnited States
CitySalt Lake City, UT
Period04/6/2704/7/1

Fingerprint

Sediment transport
Open channel flow
Suspended sediments
Flow structure
Model structures
Sediments
Turbulence
Friction
Computer simulation

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Choi, S. U., & Kang, H. (2004). Depth-averaged modeling of flows and sediment transport in open-channel with submerged vegetation. In G. Sehlke, D. F. Hayes, & D. K. Stevens (Eds.), Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmental Resources Management (pp. 2648-2657). (Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management).
Choi, Sung Uk ; Kang, Hyeongsik. / Depth-averaged modeling of flows and sediment transport in open-channel with submerged vegetation. Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmental Resources Management. editor / G. Sehlke ; D.F. Hayes ; D.K. Stevens. 2004. pp. 2648-2657 (Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management).
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abstract = "This paper presents a depth-averaged model for the numerical simulations of flow and sediment transport in open-channel flows with submerged vegetation. Since the flow structure and the concentration profile in the open-channel with submerged vegetation are different from those in the plain open-channel, the conventional methods of estimating the friction coefficient and sediment load should be modified. The vertical structure model with k-ε turbulence closure is used to adjust the relevant parameters in the depth-averaged model. The impacts of model modifications are provided and discussed. Using the developed model, flow and suspended sediment transport through submerged vegetation are simulated, and predicted results are compared with experimental data.",
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Choi, SU & Kang, H 2004, Depth-averaged modeling of flows and sediment transport in open-channel with submerged vegetation. in G Sehlke, DF Hayes & DK Stevens (eds), Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmental Resources Management. Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management, pp. 2648-2657, 2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management, Salt Lake City, UT, United States, 04/6/27.

Depth-averaged modeling of flows and sediment transport in open-channel with submerged vegetation. / Choi, Sung Uk; Kang, Hyeongsik.

Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmental Resources Management. ed. / G. Sehlke; D.F. Hayes; D.K. Stevens. 2004. p. 2648-2657 (Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - This paper presents a depth-averaged model for the numerical simulations of flow and sediment transport in open-channel flows with submerged vegetation. Since the flow structure and the concentration profile in the open-channel with submerged vegetation are different from those in the plain open-channel, the conventional methods of estimating the friction coefficient and sediment load should be modified. The vertical structure model with k-ε turbulence closure is used to adjust the relevant parameters in the depth-averaged model. The impacts of model modifications are provided and discussed. Using the developed model, flow and suspended sediment transport through submerged vegetation are simulated, and predicted results are compared with experimental data.

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Choi SU, Kang H. Depth-averaged modeling of flows and sediment transport in open-channel with submerged vegetation. In Sehlke G, Hayes DF, Stevens DK, editors, Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmental Resources Management. 2004. p. 2648-2657. (Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management).