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Experimental study of strong reflection of regular water waves over submerged breakwaters in tandem |
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| Authors: | Yong-Sik Cho Jong-In Lee Young-Taek Kim |
| Institution: | a Department of Civil Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, South Korea;b Water Resources Research Department, Korea Institute of Construction Technology, 2311 Daehwa-dong, Ilsan-gu, Goyang, Gyonggi-do 411-712, South Korea |
| Abstract: | A series of laboratory experiments was carried out to investigate the strong reflection of regular water waves over a train of submerged breakwaters. Rectangular and trapezoidal shapes of submerged breakwaters are employed and compared for reflecting capability of incident waves. Measured reflection coefficients of regular waves over impermeable submerged breakwaters are verified by comparing with those of the eigenfunction expansion method. A very good agreement is observed. Reflection coefficients of permeable submerged breakwaters are less than those of impermeable breakwaters. The trapezoidal shape is recommended for a submerged breakwater in terms of reflecting capability and practical application. |
| Keywords: | Water waves Submerged breakwater Bragg reflection Eigenfunction expansion method |
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