Mobile QR Code QR CODE : Journal of the Korean Society of Civil Engineers
Title Effectiveness of a Wave Resonator under Short-period Waves and Solitary Waves
Authors 이광호 ; 정성호 ; 정진우 ; 김도삼
Page pp.89-100
ISSN 10156348
Keywords resonator;solitary waves;short-periodic waves;TWOPM-3D;3D numerical wave flume;공진장치;고립파;단주기파랑;3차원혼상류해석;3차원수치파동수로
Abstract The performance evaluation of a conventional Wave Resonator at the entrance of harbors against solitary wave has been performed using 3D numerical wave flume. A wave resonator has been designed for the attenuation of the transmitted wave energy by trapping the short periodic incident waves only. in this study, however, the controlled performance of the wave resonator by its various widths has been numerically investigated for solitary waves. Source distribution method based on the Green function and the 3D one-field Model for immiscible TWO-Phase flows (TWOPM-3D) using 3D numerical wave flume were used for the short-periodic waves and the solitary waves, respectively, and these models were verified through the comparisons with the previous experimental and numerical results by other researchers. It was confirmed that the wave resonator is effective enough to control the solitary waves as well as the periodic waves when it compares with the case of no resonance system. Further, it was found that there is the optimal width of a wave resonator to attenuate the target solitary waves.