Paper Title:
Bed Load Transport under Complex Flow
  Abstract

In this paper, the backward-facing step flow and the sediment transport downstream step were studied experimentally. The critical incipient bed shear velocity is obtained by the results of bed shear velocity and sediment incipient probability. It was found that the critical incipient bed shear velocity depends on the flow structures under the complex flow. By using the new critical incipient bed shear obtained in this paper and calculating the Shields parameter based on instantaneous bed shear velocity, the bed load sediment transport rate downstream step was given. The time history of the bed profile downstream step was calculated by bed load sediment transport rate and compared that obtained by the digital images. Good agreement was observed.

  Info
Periodical
Advanced Materials Research (Volumes 255-260)
Edited by
Jingying Zhao
Pages
3589-3593
DOI
10.4028/www.scientific.net/AMR.255-260.3589
Citation
C. R. Liu, D. L. Xu, "Bed Load Transport under Complex Flow", Advanced Materials Research, Vols. 255-260, pp. 3589-3593, 2011
Online since
May 2011
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Price
$32.00
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