Experimental study of the breakwater efficiency of a cylindrical pile model
Breakwaters can be built in various configurations and are primarily deployed offshore to protect coastal areas from excessive erosion as a result of wave action. Despite abundant studies conducted with respect to alternative forms of breakwaters, researchers have yet to explore the potential of dis...
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| Format: | Final Year Project |
| Language: | English |
| Published: |
2013
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| Online Access: | http://hdl.handle.net/10356/53860 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Breakwaters can be built in various configurations and are primarily deployed offshore to protect coastal areas from excessive erosion as a result of wave action. Despite abundant studies conducted with respect to alternative forms of breakwaters, researchers have yet to explore the potential of disconnected cylindrical breakwaters that are fixed vertically on the seabed.In this experimental investigation, a unique breakwater model is used. The model with dimensions 35m by 0.55m by 0.6m is made up of an array of four fixed vertical cylindrical piles spaced out equally. The model is examined against linear waves of different wave period, wave height as well as varying water depth. The breakwater efficiency will then be evaluated by considering the coefficient of reflection and transmission values at different wave parameters.The experimental results have shown that for increasing wave period, the coefficient of reflection decreases and the coefficient of transmission increases. It was found that for increments in wave height, a corresponding decrease in both the coefficient of reflection and transmission is observed. However, when tested against different water depths, the results seem to be fluctuating with no apparent trend. Therefore, due to the lack of sufficient data points, it is impossible to draw any solid conclusions.The findings of this study would expand on the existing research for breakwater alternatives by addressing the feasibility of employing cylindrical piles as breakwaters. Also, the data acquired reflects the model’s performance at different wave parameters which is a huge factor in considerations for site selection process. |
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