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Impact of takeoff angle of bucket type energy dissipater on scour hole


Citation

Alias, Nor Azlina and Mohammed, Thamer Ahmed and Ghazali, Abdul Halim and Megat Mohd Noor, Megat Johari (2008) Impact of takeoff angle of bucket type energy dissipater on scour hole. American Journal of Applied Sciences, 5 (2). pp. 117-121. ISSN 1546-9239; ESSN: 1554-3641

Abstract / Synopsis

Scour holes formed downstream of bucket type energy dissipater may affect the safety and stability of the structure. In this study, a physical model is employed to study the impact of takeoff angle of bucket type energy dissipater on the scour hole. The area of longitudinal profile of the scour hole is used to evaluate the seriousness of the scour at downstream of the bucket type energy dissipater. Experimental results showed that the takeoff angle of 45° is the optimum angle which gives minimum longitudinal area of the scour hole. Also, validation of selected equations for predicting maximum scour depth at downstream of the bucket type energy dissipater showed that the equation proposed by Schoklitsch gave minimum error (33%) [1].


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: 10.3844/ajassp.2008.117.121
Publisher: Science Publications
Keywords: Flip bucket spillway; Takeoff angle; Physical model; Scour hole; Validation
Depositing User: Mardhiah Mat Jusoh
Date Deposited: 01 Sep 2010 14:39
Last Modified: 23 Nov 2017 13:42
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3844/ajassp.2008.117.121
URI: http://psasir.upm.edu.my/id/eprint/7761
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