Hydrodynamic performance of floating breakwaters in long wave regime : an experimental study
Ji, Chunyan and Cheng, Yong and Cui, Jie and Yuan, Zhiming and Gaidai, Oleg (2018) Hydrodynamic performance of floating breakwaters in long wave regime : an experimental study. Ocean Engineering, 152. pp. 154-166. ISSN 0029-8018 (https://doi.org/10.1016/j.oceaneng.2018.01.055)
Preview |
Text.
Filename: Ji_etal_OE_2018_Hydrodynamic_performance_of_floating_breakwaters.pdf
Accepted Author Manuscript License: Download (1MB)| Preview |
Abstract
Hydrodynamic behavior test of long water waves with a floating breakwater is an important mission in some near-reef sea areas. Especially, the performance of the floating breakwater becomes more complicated when its natural periods stay within the range of wave frequencies. In this study, a series of experiments were conducted under long regular wave actions to investigate the hydrodynamic behavior of four slack-moored floating breakwater models, including single box, single porous box, double cylindrical pontoon, double cylindrical pontoon with mesh cage and suspending balls. The experimental results revealed that the wave transmission and wave energy dissipation for four models had multiple turning points near the natural periods of floating structures in long wave regime, while which was not evident for the reflection coefficient. The resonant responses were also observed in the motions and mooring tensions of the four models, which further explained the turning point phenomenon that appeared in transmission and dissipation coefficients. The overall results demonstrated that the porous plates and mesh cage with balls were effective for mitigating the turning point phenomenon due to additional water mass and damping effects, and also held the potential for reducing the motions and mooring forces.
ORCID iDs
Ji, Chunyan, Cheng, Yong, Cui, Jie, Yuan, Zhiming ORCID: https://orcid.org/0000-0001-9908-1813 and Gaidai, Oleg;-
-
Item type: Article ID code: 65044 Dates: DateEvent15 March 2018Published23 February 2018Published Online11 January 2018AcceptedSubjects: Naval Science > Naval architecture. Shipbuilding. Marine engineering Department: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 06 Aug 2018 14:15 Last modified: 14 Dec 2024 01:22 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/65044