Bed shear stress measurements over rough fixed and mobile sediment beds in swash flows

Jiang, Zhonglian and Baldock, Tom E. (2014). Bed shear stress measurements over rough fixed and mobile sediment beds in swash flows. In: Patrick Lynett, Proceedings of the 34th International Conference: Coastal Engineering 2014. International Conference on Coastal Engineering, Seoul, Korea, (1-9). 15-20 June 2014. doi:10.9753/icce.v34.currents.40

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Author Jiang, Zhonglian
Baldock, Tom E.
Title of paper Bed shear stress measurements over rough fixed and mobile sediment beds in swash flows
Conference name International Conference on Coastal Engineering
Conference location Seoul, Korea
Conference dates 15-20 June 2014
Proceedings title Proceedings of the 34th International Conference: Coastal Engineering 2014   Check publisher's open access policy
Place of Publication San Francisco, CA, United States
Publisher Coastal Engineering Research Council
Publication Year 2014
Sub-type Fully published paper
DOI 10.9753/icce.v34.currents.40
Open Access Status File (Publisher version)
ISBN 9780989661126
ISSN 2156-1028
Editor Patrick Lynett
Start page 1
End page 9
Total pages 9
Collection year 2015
Language eng
Abstract/Summary Direct measurements of bed shear stress have been conducted over rough fixed and mobile sediment beds in dambreak driven swash flows. The comparison between rough fixed and mobile bed results indicated the significant importance of grain borne shear stress component, induced by increased dispersive stress and the momentum transfer by moving sediment grains to the bed. The increase of the averaged peak bed shear stress under mobile sediment beds can be up to 100% of that for fixed beds. The direct incorporation of the shear stress data into the classic MeyerPeter&Muller (1948) bed load model leads to over-estimate of bed load transport rate and reveals the fact of starved bed conditions applied in the present experiments.
Keyword Bed shear stress
Shear plate
Fixed and mobile beds
Dam break
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2015 Collection
 
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Created: Mon, 23 Feb 2015, 15:28:21 EST by Jeannette Watson on behalf of School of Civil Engineering