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Article

Representative Transmission Coefficient for Evaluating the Wave Attenuation Performance of 3D Floating Breakwaters in Regular and Irregular Waves

by
Huu Phu Nguyen
1,*,
Jeong Cheol Park
1,
Mengmeng Han
1,
Chien Ming Wang
1,
Nagi Abdussamie
2,
Irene Penesis
2 and
Damon Howe
2
1
School of Civil Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
2
National Centre for Maritime Engineering and Hydrodynamics, Australian Maritime College, University of Tasmania, Locked Bag 1395, Launceston, TAS 7250, Australia
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2021, 9(4), 388; https://doi.org/10.3390/jmse9040388
Submission received: 16 February 2021 / Revised: 27 March 2021 / Accepted: 31 March 2021 / Published: 6 April 2021
(This article belongs to the Special Issue Recent Advances in Floating Structures)
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Abstract

Wave attenuation performance is the prime consideration when designing any floating breakwater. For a 2D hydrodynamic analysis of a floating breakwater, the wave attenuation performance is evaluated by the transmission coefficient, which is defined as the ratio between the transmitted wave height and the incident wave height. For a 3D breakwater, some researchers still adopted this evaluation approach with the transmitted wave height taken at a surface point, while others used the mean transmission coefficient within a surface area. This paper aims to first examine the rationality of these two evaluation approaches via verified numerical simulations of 3D heave-only floating breakwaters in regular and irregular waves. A new index—a representative transmission coefficient—is then presented for one to easily compare the wave attenuation performances of different 3D floating breakwater designs.
Keywords: floating breakwater; wave attenuation performance; transmission coefficient; regular wave; irregular wave floating breakwater; wave attenuation performance; transmission coefficient; regular wave; irregular wave

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MDPI and ACS Style

Nguyen, H.P.; Park, J.C.; Han, M.; Wang, C.M.; Abdussamie, N.; Penesis, I.; Howe, D. Representative Transmission Coefficient for Evaluating the Wave Attenuation Performance of 3D Floating Breakwaters in Regular and Irregular Waves. J. Mar. Sci. Eng. 2021, 9, 388. https://doi.org/10.3390/jmse9040388

AMA Style

Nguyen HP, Park JC, Han M, Wang CM, Abdussamie N, Penesis I, Howe D. Representative Transmission Coefficient for Evaluating the Wave Attenuation Performance of 3D Floating Breakwaters in Regular and Irregular Waves. Journal of Marine Science and Engineering. 2021; 9(4):388. https://doi.org/10.3390/jmse9040388

Chicago/Turabian Style

Nguyen, Huu Phu, Jeong Cheol Park, Mengmeng Han, Chien Ming Wang, Nagi Abdussamie, Irene Penesis, and Damon Howe. 2021. "Representative Transmission Coefficient for Evaluating the Wave Attenuation Performance of 3D Floating Breakwaters in Regular and Irregular Waves" Journal of Marine Science and Engineering 9, no. 4: 388. https://doi.org/10.3390/jmse9040388

APA Style

Nguyen, H. P., Park, J. C., Han, M., Wang, C. M., Abdussamie, N., Penesis, I., & Howe, D. (2021). Representative Transmission Coefficient for Evaluating the Wave Attenuation Performance of 3D Floating Breakwaters in Regular and Irregular Waves. Journal of Marine Science and Engineering, 9(4), 388. https://doi.org/10.3390/jmse9040388

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