Impact of takeoff angle of bucket type energy dissipater on scour hole
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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Science Publications
2008
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| Online Access: | http://psasir.upm.edu.my/id/eprint/7761/ http://psasir.upm.edu.my/id/eprint/7761/1/ajas52117-121.pdf |
| _version_ | 1848840685547945984 |
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| author | Alias, Nor Azlina Mohammed, Thamer Ahmed Ghazali, Abdul Halim Megat Mohd Noor, Megat Johari |
| author_facet | Alias, Nor Azlina Mohammed, Thamer Ahmed Ghazali, Abdul Halim Megat Mohd Noor, Megat Johari |
| author_sort | Alias, Nor Azlina |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | 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]. |
| first_indexed | 2025-11-15T07:31:16Z |
| format | Article |
| id | upm-7761 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:31:16Z |
| publishDate | 2008 |
| publisher | Science Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-77612017-11-23T05:42:19Z http://psasir.upm.edu.my/id/eprint/7761/ Impact of takeoff angle of bucket type energy dissipater on scour hole Alias, Nor Azlina Mohammed, Thamer Ahmed Ghazali, Abdul Halim Megat Mohd Noor, Megat Johari 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]. Science Publications 2008 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7761/1/ajas52117-121.pdf 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 http://thescipub.com/html/10.3844/ajassp.2008.117.121 10.3844/ajassp.2008.117.121 |
| spellingShingle | Alias, Nor Azlina Mohammed, Thamer Ahmed Ghazali, Abdul Halim Megat Mohd Noor, Megat Johari Impact of takeoff angle of bucket type energy dissipater on scour hole |
| title | Impact of takeoff angle of bucket type energy dissipater on scour hole |
| title_full | Impact of takeoff angle of bucket type energy dissipater on scour hole |
| title_fullStr | Impact of takeoff angle of bucket type energy dissipater on scour hole |
| title_full_unstemmed | Impact of takeoff angle of bucket type energy dissipater on scour hole |
| title_short | Impact of takeoff angle of bucket type energy dissipater on scour hole |
| title_sort | impact of takeoff angle of bucket type energy dissipater on scour hole |
| url | http://psasir.upm.edu.my/id/eprint/7761/ http://psasir.upm.edu.my/id/eprint/7761/ http://psasir.upm.edu.my/id/eprint/7761/ http://psasir.upm.edu.my/id/eprint/7761/1/ajas52117-121.pdf |