Simulation of meandering channel evolution with an analytical model

D. Chen, Guohong Duan

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

Abstract

Bank retreat rate, the receding rate of bank top-lines through basal erosion and bank failure, was calculated based on the analysis of bank stability and sediment mass conservation near banks. This study indicated that the gradient of sediment transport rate in the longitudinal direction and the strength of secondary flow determined the rate of bank retreat. An analytical model was developed based on this result and applied to simulating the evolution of sine-generated meandering channels. Not like the conventional methods which assumed that the rate of bank retreat was proportional to the magnitude of excessive near-bank velocity or shear stress, this approach in simulating bank retreat and meandering channel evolution has advantages by taking into account the gradient of longitudinal velocity and the strength of secondary flow, and will avoid the estimation of the erodibility coefficient in traditional bank erosion models.

Original languageEnglish (US)
Title of host publicationProceedings of the 2004 World Water and Environmetal Resources Congress: Critical Transitions in Water and Environmetal Resources Management
EditorsG. Sehlke, D.F. Hayes, D.K. Stevens
Pages2058-2067
Number of pages10
Publication statusPublished - 2004
Externally publishedYes
Event2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management - Salt Lake City, UT, United States
Duration: Jun 27 2004Jul 1 2004

Other

Other2004 World Water and Environmental Resources Congress: Critical Transitions in Water and Environmental Resources Management
CountryUnited States
CitySalt Lake City, UT
Period6/27/047/1/04

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Chen, D., & Duan, G. (2004). Simulation of meandering channel evolution with an analytical 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 Environmetal Resources Management (pp. 2058-2067)