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http://dx.doi.org/10.9765/KSCOE.2020.32.6.481

Numerical Simulation on Control of Tsunami by Resonator (I) (for Imwon and Mukho ports)  

Lee, Kwang-Ho (Dept. of Civil Eng., Catholic Kwandong University)
Jeon, Jong-Hyeok (Graduate School of Environmental Studies, Nagoya University)
Kim, Do-Sam (Dept. of Civil Eng., Korea Maritime and Ocean Univ.)
Lee, Yun-Du (Road Maintenance Team, Construction Safety Test Office, Busan Metropolitan City)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.32, no.6, 2020 , pp. 481-495 More about this Journal
Abstract
After the resonator on the basis of the wave-filter theory was designed to control the waves with a specific frequency range surging into the harbor, the several case with the use of resonator have been reported in some part of sea, including the port of Long Beach, USA, and yacht harbor at Rome, Italy in order to control the long-period wave motion from the vessels. Recently, the utility and applicability of the resonator has been sufficiently verified in respect of the control of tsunami approximated as the solitary wave and/or the super long-period waves. However, the case with the application of tsunami in the real sea have not been reported yet. In this research, the respective case with the use of existing resonator at the port of Mukho and Imwon located in the eastern coast of South Korea were studied by using the numerical analysis through the COMCOT model adapting the reduction rate of 1983 Central East Sea tsunami and 1993 Hokkaido Southwest off tsunami. Consequently, the effectiveness of resonator against tsunami in the real sea was confirmed through the reduction rate of maximum 40~50% at the port of Mukho, and maximum 21% at the port of Imwom, respectively. In addition, it was concluded that it is necessary to study about the various case with application of different shape, arrangement, and size of resonator in order to design the optimal resonator considering the site condition.
Keywords
resonator; real sea; tsunami; reduction rate of tsunami height; Mukho port; Imwon port; numerical analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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