한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제33권6호
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  • Pages.573-580
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  • 2019
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
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조위차 극복형 잠제의 파랑제어

Wave Control by Tide-Adapting Submerged Breakwater

  • 이우동 (국립경상대학교 해양토목공학과) ;
  • 정연명 (국립경상대학교 해양산업연구소) ;
  • 허동수 (국립경상대학교 해양토목공학과)
  • Lee, Woo-Dong (Department of Ocean Civil Engineering, Gyeongsang National University) ;
  • Jeong, Yeon-Myeong (Institute of Marine Industry, Gyeongsang National University) ;
  • Hur, Dong-Soo (Department of Ocean Civil Engineering, Gyeongsang National University)
  • 투고 : 2019.09.03
  • 심사 : 2019.11.27
  • 발행 : 2019.12.30
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초록

A submerged breakwater is a coastal structure built under water with excellent landscape. The depth of the crest of the breakwater should be maintained at more than a certain level in order for the submerged breakwater to control waves properly. This means that the effect of blocking waves deceases sharply at high tide in coastal areas with large tidal differences. In this study, we proposed a Tide-Adapting Submerged Breakwater (TA-SB) to overcome this problem, and then we conducted hydraulic model experiments to evaluate the performance of the TA-SB for controlling waves. The experimental results showed that the tapered wings attached to the crest of the TA-SB helped induce forced breaking waves. In particular, they were very effective in blocking waves and attenuating wave energy at high tide. In addition, the wave control performance of the proposed TA-SB was far superior to the Tide-Adapting Low-Crested Structure (TA-LCS) of the previous study.

키워드

참고문헌

  1. Calabrese, M., Vicinanza, V., Buccino, M., 2002. Large Scale Experiments on the Behaviour of Low Crested and Submerged Breakwaters in Presence of Broken Waves. Proceedings of the 28th International Conference on Coastal Engineering, ASCE, 1900-1912. https://doi.org/10.1142/9789812791306_0160
  2. Goda, Y., Ahrens, J.P., 2008. New Formulation of Wave Transmission over and through Low-Crested Structures. Proceedings of the 31st International Conference on Coastal Engineering, ASCE, 3530-3541. https://doi.org/10.1142/9789814277426_0293
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  5. Hur, D.S., Cho, W.C., Yoon, J.S., Kim, I.H., Lee, W.D., 2014. Control Technologies in Reduction Rip Currents around the Open Inlet between Two Submerged Breakwaters. Journal of Coastal Research, Special Issue 72, 75-80. https://doi.org/10.2112/SI72-014.1
  6. Hur, D.S., Cho, W.C., Yoon, J.S., Kang, C., Lee, W.D., 2017b. Applicability of Multiple Submerged Narrow-Crested Breakwaters for Reduction of Mean Water Level in Rear Side and Flow Control. Journal of Coastal Research, Special Issue, 79, 179-183. https://doi.org/10.2112/SI79-037.1
  7. Hur, D.S., Lee, W.D., An, S.W., Park, J.B., 2010. A Numerical Study on Flow Control Structure of a New-Type Submerged Breakwater. Journal of Korean Society of Coastal and Ocean Engineers, 22(3), 181-190.
  8. Hur, D.S., Lee, W.D., Cho, W.C., 2012a. Three-Dimensional Flow Characteristics around Permeable Submerged Breakwaters with Open Inlet. Ocean Engineering, 44, 100-116. https://doi.org/10.1016/j.oceaneng.2012.01.029
  9. Hur, D.S., Lee, W.D., Cho, W.C., 2012b. Characteristics of Wave Run-up Height on a Sandy Beach behind Dual-Submerged Breakwaters. Ocean Engineering, 45, 38-55. https://doi.org/10.1016/j.oceaneng.2012.01.030
  10. Hur, D.S., Lee, W.D., Cho, W.C., Jeong, Y.H., Jeong, Y.M., 2019a. Rip Current Reduction at the Open Inlet between Double Submerged Breakwaters by Installing a Drainage Channel. Ocean Engineering, 193, 106580. https://doi.org/10.1016/j.oceaneng.2019.106580
  11. Hur, D.S., Lee, W.D., Goo, N.H., Jeon, H.S., Jeong, Y.M., 2017a. Development of New Type of Submerged Breakwater for Reducing Mean Water Level behind Structure. Journal of Ocean Engineering and Technology, 31(2), 130-140. https://doi.org/10.5574/KSOE.2017.31.2.130
  12. Hur, D.S., Jung, K.H., Park, J.R., Lee, W.D., 2019b. Wave Control Performance of Tide-Adapting Low-Crested Structure. Journal of Coastal Research, Special Issue 91, 116-120.
  13. Hur, D.S., Jung, Y.M., Lee, W.D., 2019c. Hydrodynamic Characteristics of Tide-Adapting Low-Crested Structure. Journal of Ocean Engineering and Technology 33(1), 68-75. https://doi.org/10.26748/KSOE.2018.087
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