Bedload transport in the case of seepage flow

Simona Francalanci, Gary Parker, Luca Solari

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

Abstract

The Shields number provides a classical non-dimensionalization expressing the relative mobility of a sediment particle on the bed of a river. It is not commonly recognized, however, that the Shields number implicitly contains the assumption of a hydrostatic pressure distribution in the water immersing the particles. If the concept underlying the Shields number is correct, however, the Shields number should be generalizable to non-hydrostatic pressure distributions. Here such a generalization is attempted for the case of a non-hydrostatic pressure distribution produced by a vertical seepage flow: the effect of both upward and downward seepage flow on bedload transport was investigated (Francalanci, Parker and Paris 2005), suggesting that an appropriately generalized Shields number is needed to capture the effect of a seepage flow on sediment mobility. A theoretical and numerical model is here proposed to account the effect of seepage flow on sediment mobility and bedload transport.

Original languageEnglish (US)
Title of host publicationProceedings of the International Conference on Fluvial Hydraulics - River Flow 2006
PublisherTaylor and Francis/ Balkema
Pages1569-1575
Number of pages7
ISBN (Print)9780415408158
DOIs
StatePublished - Jan 1 2006
EventInternational Conference on Fluvial Hydraulics - River Flow 2006 - Lisbon, Portugal
Duration: Sep 6 2006Sep 8 2006

Publication series

NameProceedings of the International Conference on Fluvial Hydraulics - River Flow 2006
Volume2

Other

OtherInternational Conference on Fluvial Hydraulics - River Flow 2006
CountryPortugal
CityLisbon
Period9/6/069/8/06

ASJC Scopus subject areas

  • Water Science and Technology

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  • Cite this

    Francalanci, S., Parker, G., & Solari, L. (2006). Bedload transport in the case of seepage flow. In Proceedings of the International Conference on Fluvial Hydraulics - River Flow 2006 (pp. 1569-1575). (Proceedings of the International Conference on Fluvial Hydraulics - River Flow 2006; Vol. 2). Taylor and Francis/ Balkema. https://doi.org/10.1201/9781439833865.ch167