Flow field and bed topography in river meanders

Helgi Johannesson, Gary Parker

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

Abstract

A mathematical model is developed for the calculation of flow field and bed topography in curved channels with an erodible bed. A small perturbation approach is used to linearize the governing equations, which retain the full coupling between the flow field, the bedload transport, and the bed topography. This coupling is shown to increase significantly the lateral bed slope in the upstream part of a channel bend, even beyond the value for fully developed bend flow which is approached in the downstream part of a channel bend. This coupling is also shown to give rise to resonant behavior for certain combinations of input variables; the common origin of the two phenomena is explained.

Original languageEnglish (US)
Title of host publicationHydraul Eng Proc 1988 Natl Conf Hydraul Eng
PublisherPubl by ASCE
Pages684-689
Number of pages6
ISBN (Print)0872626709, 0872626709
StatePublished - Dec 1 1988
Externally publishedYes
EventHydraulic Engineering: Proceedings of the 1988 National Conference on Hydraulic Engineering - Colorado Springs, CO, USA
Duration: Aug 8 1988Aug 12 1988

Publication series

NameHydraul Eng Proc 1988 Natl Conf Hydraul Eng

Other

OtherHydraulic Engineering: Proceedings of the 1988 National Conference on Hydraulic Engineering
CityColorado Springs, CO, USA
Period8/8/888/12/88

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Johannesson, H., & Parker, G. (1988). Flow field and bed topography in river meanders. In Hydraul Eng Proc 1988 Natl Conf Hydraul Eng (pp. 684-689). (Hydraul Eng Proc 1988 Natl Conf Hydraul Eng). Publ by ASCE.