A floating box-type breakwater with slotted barriers

ABSTRACT

Floating box-type breakwaters are frequently used for small harbours and marinas. This paper reports a comparative experimental study of the performance of a rectangular floating breakwater with and without slotted barriers. Experimental results showed that the slotted barriers attached to the bottom of a floating box-type breakwater could improve the transmission performance without increasing both the heave and surge motion responses. It was also found that the slotted barriers could reduce the pitch motion responses for shorter waves and increase the pitch motion responses for longer waves.

Keywords:

• Coastal engineering
• coastal structures
• floating breakwater
• gravity waves
• laboratory studies
• ocean engineering
• wave–structure interactions

Acknowledgements

The authors thank the Associate Editor and three anonymous reviewers for their constructive comments, which have greatly improved the quality of this paper.

Funding

DHI-NTU centre, Nanyang Technological University, Singapore, is acknowledged for its support to the third author. Nanyang Technological University is also acknowledged for its partial support to this work through grant SUG 03/07.