Erosion of steep river banks and time evolution towards equilibrium channel shape

Agnes Kovacs, Gary Parker

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

Abstract

A numerical analysis of the time evolution of straight river channels is presented. The bed and bank, material is taken to be coarse, non-cohesive and uniform in size. As a result of the interaction of the flow and the bed, the cross-sectional shape of the river evolves in time toward a dynamic equilibrium shape. This equilibrium is characterized by constant width, vanishing sediment transport in the transverse direction, and small but non-vanishing streamwise transport rate of bed sediment. The model successfully describes the time relaxation of an initially trapezoidal channel toward the equilibrium shape, as evidenced by comparison with experimental data.

Original languageEnglish (US)
Title of host publicationProceedings of Engineering Mechanics
PublisherPubl by ASCE
Pages896-899
Number of pages4
ISBN (Print)0872628671
StatePublished - Jan 1 1992
Externally publishedYes
EventProceedings of the 9th Conference on Engineering Mechanics - College Station, TX, USA
Duration: May 24 1992May 27 1992

Publication series

NameProceedings of Engineering Mechanics

Other

OtherProceedings of the 9th Conference on Engineering Mechanics
CityCollege Station, TX, USA
Period5/24/925/27/92

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture

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