Impact of Takeoff Angle of Bucket Type Energy Dissipater on Scour Hole

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

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Abstract

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 45o 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%)

Item Type:Article
Keyword:Flip bucket spillway, takeoff angle, physical model, scour hole, validation
Faculty or Institute:Faculty of Engineering
Publisher:Frontiers in Bioscience
ID Code:7761
Deposited By: Mardhiah Mat Jusoh
Deposited On:01 Sep 2010 06:39
Last Modified:27 May 2013 07:36

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