Experimental investigation of the velocity distribution for a bendway weir
Bendway weirs is a set of structure used to reduce erosion problems at sharp bends of natural stream. Its ability to realign velocity distribution to a better alignment has been proved through previously installed bendway weirs. The effects of different bendway weir's length and degrees of angl...
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Universiti Malaysia Sarawak (UNIMAS)
2002
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| Online Access: | http://ir.unimas.my/id/eprint/22733/1/Experimental%20investigation%20of%20the%20velocity%20distribution%20for%20a%20bendway%20weir%20%2824%20pgs%29.pdf http://ir.unimas.my/id/eprint/22733/4/NG%20SUH%20HONG.pdf http://ir.unimas.my/id/eprint/22733/ |
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my.unimas.ir.227332024-01-24T08:37:24Z http://ir.unimas.my/id/eprint/22733/ Experimental investigation of the velocity distribution for a bendway weir Ng, Suh Hong. T Technology (General) TA Engineering (General). Civil engineering (General) Bendway weirs is a set of structure used to reduce erosion problems at sharp bends of natural stream. Its ability to realign velocity distribution to a better alignment has been proved through previously installed bendway weirs. The effects of different bendway weir's length and degrees of angled downstream were found valuable as a mean to decrease the velocities at the outer bend while not unduly increase the inflow depth. In this study, the effect of different length and different angles downstream of the weirs is presented. The study is conducted in a channel that has been modelled up according to one real bend located in Batang Sadong. Whereby serious erosion at the outer riverbank has caused damages to villages nearby, and even worse especially at flood season. Experiment data shows that, a 3.5cm of bendway weirs angled downstream has successfully realigned the cross section velocities distribution along the bend. High velocities at outer bend have been reduced, cross section velocities were more evenly distributed and acceptable small increment in inflow depth. Thus, a 3.5cm bendway weir with a 20° angle downstream is more effective in velocity redistribution and outer bend erosion elimination. Universiti Malaysia Sarawak (UNIMAS) 2002 Final Year Project Report NonPeerReviewed text en http://ir.unimas.my/id/eprint/22733/1/Experimental%20investigation%20of%20the%20velocity%20distribution%20for%20a%20bendway%20weir%20%2824%20pgs%29.pdf text en http://ir.unimas.my/id/eprint/22733/4/NG%20SUH%20HONG.pdf Ng, Suh Hong. (2002) Experimental investigation of the velocity distribution for a bendway weir. [Final Year Project Report] (Unpublished) |
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T Technology (General) TA Engineering (General). Civil engineering (General) |
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T Technology (General) TA Engineering (General). Civil engineering (General) Ng, Suh Hong. Experimental investigation of the velocity distribution for a bendway weir |
| description |
Bendway weirs is a set of structure used to reduce erosion problems at sharp bends of natural stream. Its ability to realign velocity distribution to a better alignment has been proved through previously installed bendway weirs. The effects of different bendway weir's length and degrees of angled downstream were found valuable as a mean to decrease the velocities at the outer bend while not unduly increase the inflow depth. In this study, the effect of different length and different angles downstream of the weirs is presented. The study is conducted in a channel that has been modelled up
according to one real bend located in Batang Sadong. Whereby serious erosion at the outer riverbank has caused damages to villages nearby, and even worse especially at
flood season. Experiment data shows that, a 3.5cm of bendway weirs angled downstream has successfully realigned the cross section velocities distribution along
the bend. High velocities at outer bend have been reduced, cross section velocities were more evenly distributed and acceptable small increment in inflow depth. Thus, a 3.5cm bendway weir with a 20° angle downstream is more effective in velocity redistribution and outer bend erosion elimination. |
| format |
Final Year Project Report |
| author |
Ng, Suh Hong. |
| author_facet |
Ng, Suh Hong. |
| author_sort |
Ng, Suh Hong. |
| title |
Experimental investigation of the velocity distribution for a bendway weir |
| title_short |
Experimental investigation of the velocity distribution for a bendway weir |
| title_full |
Experimental investigation of the velocity distribution for a bendway weir |
| title_fullStr |
Experimental investigation of the velocity distribution for a bendway weir |
| title_full_unstemmed |
Experimental investigation of the velocity distribution for a bendway weir |
| title_sort |
experimental investigation of the velocity distribution for a bendway weir |
| publisher |
Universiti Malaysia Sarawak (UNIMAS) |
| publishDate |
2002 |
| url |
http://ir.unimas.my/id/eprint/22733/1/Experimental%20investigation%20of%20the%20velocity%20distribution%20for%20a%20bendway%20weir%20%2824%20pgs%29.pdf http://ir.unimas.my/id/eprint/22733/4/NG%20SUH%20HONG.pdf http://ir.unimas.my/id/eprint/22733/ |
| _version_ |
1789430297472794624 |
| score |
13.211869 |