3D numerical simulation of compound open channel flows with vegetated floodplains by Reynolds stress model

Hyeongsik Kang, Sung-Uk Choi

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

4 Citations (Scopus)

Abstract

This paper presents a Reynolds stress modeling of compound open-channel flows with vegetation on the floodplain. In the Reynolds stress model, we use the SSG model by Speziale et al. (1991) for pressure-strain correlation term, Mellor and Herring's (1973) model for the turbulent diffusion term, and Hanjalic and Launder's (1972) model for the dissipation term. In order to take into account the anisotropy of turbulence due to the free surface, the combination of Shir's (1973) model and Gibson and Launder's (1978) model is included in the pressure-strain correlation model. Model validations are carried out for the compound open-channel flows without vegetation. Then, the model is applied to the compound open-channel flows with vegetated floodplains. The mean flow and turbulence structures are simulated and the impact of vegetation on the floodplains is investigated.

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
Pages1408-1417
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

Open channel flow
Computer simulation
Turbulence
Anisotropy

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Kang, H., & Choi, S-U. (2004). 3D numerical simulation of compound open channel flows with vegetated floodplains by Reynolds stress model. 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. 1408-1417). (Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management).
Kang, Hyeongsik ; Choi, Sung-Uk. / 3D numerical simulation of compound open channel flows with vegetated floodplains by Reynolds stress model. 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. 1408-1417 (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 Reynolds stress modeling of compound open-channel flows with vegetation on the floodplain. In the Reynolds stress model, we use the SSG model by Speziale et al. (1991) for pressure-strain correlation term, Mellor and Herring's (1973) model for the turbulent diffusion term, and Hanjalic and Launder's (1972) model for the dissipation term. In order to take into account the anisotropy of turbulence due to the free surface, the combination of Shir's (1973) model and Gibson and Launder's (1978) model is included in the pressure-strain correlation model. Model validations are carried out for the compound open-channel flows without vegetation. Then, the model is applied to the compound open-channel flows with vegetated floodplains. The mean flow and turbulence structures are simulated and the impact of vegetation on the floodplains is investigated.",
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Kang, H & Choi, S-U 2004, 3D numerical simulation of compound open channel flows with vegetated floodplains by Reynolds stress model. 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. 1408-1417, 2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management, Salt Lake City, UT, United States, 04/6/27.

3D numerical simulation of compound open channel flows with vegetated floodplains by Reynolds stress model. / Kang, Hyeongsik; Choi, Sung-Uk.

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. 1408-1417 (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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N2 - This paper presents a Reynolds stress modeling of compound open-channel flows with vegetation on the floodplain. In the Reynolds stress model, we use the SSG model by Speziale et al. (1991) for pressure-strain correlation term, Mellor and Herring's (1973) model for the turbulent diffusion term, and Hanjalic and Launder's (1972) model for the dissipation term. In order to take into account the anisotropy of turbulence due to the free surface, the combination of Shir's (1973) model and Gibson and Launder's (1978) model is included in the pressure-strain correlation model. Model validations are carried out for the compound open-channel flows without vegetation. Then, the model is applied to the compound open-channel flows with vegetated floodplains. The mean flow and turbulence structures are simulated and the impact of vegetation on the floodplains is investigated.

AB - This paper presents a Reynolds stress modeling of compound open-channel flows with vegetation on the floodplain. In the Reynolds stress model, we use the SSG model by Speziale et al. (1991) for pressure-strain correlation term, Mellor and Herring's (1973) model for the turbulent diffusion term, and Hanjalic and Launder's (1972) model for the dissipation term. In order to take into account the anisotropy of turbulence due to the free surface, the combination of Shir's (1973) model and Gibson and Launder's (1978) model is included in the pressure-strain correlation model. Model validations are carried out for the compound open-channel flows without vegetation. Then, the model is applied to the compound open-channel flows with vegetated floodplains. The mean flow and turbulence structures are simulated and the impact of vegetation on the floodplains is investigated.

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Kang H, Choi S-U. 3D numerical simulation of compound open channel flows with vegetated floodplains by Reynolds stress model. 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. 1408-1417. (Proceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management).