Journal article
Blockage correction for pier scour experiments
Canadian journal of civil engineering, Vol.45(5), pp.413-417
05/01/2018
DOI: 10.1139/cjce-2017-0563
Abstract
Commonly used bridge pier scour prediction equations have often employed the quantities of relative coarseness, flow shallowness, and flow intensity to yield a design value for maximum relative scour depth at equilibrium conditions. Predictive methods based on these quantities tend to over-predict scour. Moreover, these equations tend to yield different scour estimates for the same flow conditions. The equations, mostly derived from laboratory estimates of scour, have not considered the influence of the flume sidewall proximity. New experiments are conducted to specifically identify the role of channel blockage on scour. Evaluation of results indicates that the influence of blockage ratio on scour can be described using the value of mean flow velocity along the separating streamline and the ratio of the separation velocity to the critical velocity in the form of new parameter k(c). A new scour prediction method is developed and presented.
Details
- Title: Subtitle
- Blockage correction for pier scour experiments
- Creators
- Priscilla Williams - University of WindsorTirupati Bolisetti - University of WindsorRam Balachandar - University of Windsor
- Resource Type
- Journal article
- Publication Details
- Canadian journal of civil engineering, Vol.45(5), pp.413-417
- Publisher
- CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
- DOI
- 10.1139/cjce-2017-0563
- ISSN
- 0315-1468
- eISSN
- 1208-6029
- Number of pages
- 5
- Language
- English
- Date published
- 05/01/2018
- Academic Unit
- Civil and Environmental Engineering
- Record Identifier
- 9984446443602771
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