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진동수로 내장 해수교환방파제의 수로길이 변화에 따른 수위공진

Effects of the Oscillating Water Channel Length on the Water Surface Elevation within Seawater Exchange Breakwater

  • 이달수 (한국해양연구원 연안.항만공학연구본부) ;
  • 오영민 (한국해양연구원 연안.항만공학연구본부) ;
  • 전인식 (건국대학교 토목공학과) ;
  • 김창일 (건국대학교 토목공학과)
  • Lee, Dal-Soo (Coastal and Harbor Engineering Research Division, KORDI) ;
  • Oh, Young-Min (Coastal and Harbor Engineering Research Division, KORDI) ;
  • Chun, In-Sik (Department of Civil Engineering, Konkuk University) ;
  • Kim, Chang-Il (Department of Civil Engineering, Konkuk University)
  • 발행 : 2003.09.30

초록

The seawater exchange breakwater equipped with an oscillating water channel and water transmitting pipes has a very spectacular function that seawater supply can be greatly increased due to the upsurge of the water surface inside the channel at resonance condition which can be reached when the incident wave period becomes close to the natural period of the channel. The variations of the water level and period inside the channel are very important factors in enhancing the efficiency of sea water exchange, especially when designing the breakwater cross-section in shallow water zone which requires longer resonance period with the elongated horizontal projection of the channel. In the present study, a hydraulic experiment was performed varying the length of the oscillating channel, and the resonance periods and water surface variations are analyzed in terms of water transmission through the pipes.

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참고문헌

  1. 이달수 등. 1999. 해수교환 방파제이 실용화 연구(I), 해양수산부(연구기관:한국해양연구원).
  2. 이창훈, 이달수, 오영민. 1999. 해수교환방파제의 L자형 수로에서의 수위의 공진 : 1. 이론 및 규칙파 실험. 대한토목학회 논문집, 19, II-5, 645-651.
  3. Lee, C. and D.S. Lee. 2003. Water surface resonance in the L-shaped channel of seawater exchange breakwater. Ocean Engineering. (in press)
  4. Lee, D.S., W.S. Park, and N. Kobayashi. 1994. Circular channel breakwater to reduce wave overtopping and allow water exchange. p. 1373-1387. In: Proc. 24th Int. Conf. Coastal Eng., Kobe.