한국해안해양공학회지 (Journal of Korean Society of Coastal and Ocean Engineers)

한국해안·해양공학회 (Korean Society of Coastal and Ocean Engineers)
권호 표지

Pit에 의한 부분반사율을 갖는 항내에서의 파랑 회절에 관한 연구

The Wave Diffraction in a Partial-Reflecting Harbor due to Submarine Pit

  • 김성덕 (중앙대학교 토목공학과) ;
  • 이홍식 (중앙대학교 토목공학과)
  • Kim, Sung-Duk (Department of Civil Engineering, Chung-Ang University) ;
  • Lee, Hong-Sik (Department of Civil Engineering, Chung-Ang University)
  • 발행 : 2007.10.25
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초록

본 연구는 항만입구 부근에서 해저준설을 실시하여 Pit를 설치하였을 경우 이에 따른 항내, 항만입구 주위, 그리고 항외곽 수역에서의 파랑장에 관한 것이다. 항내 및 항외에서의 파랑장은 평면2차원으로 취급하고, 준설에 의한 Pit는 장방형의 형태로 구성한다. 본 연구에서 사용한 해는 경계적분 방정식(BIE)을 기본으로 하여 얻어진 Green 함수를 이용하여 수치계산을 실시한다. 본 연구에서는 입사각 $90^{\circ}$ 및 부분 반사 경계면을 갖는 항내 안벽으로 적용하여 그 결과를 제시한다.

The present study is to estimate the effect of diffracted wave fields inside a harbor, around harbor entrance and outer breakwater, when a navigation channel is dredged in the vicinity of the a harbor entrance. The wave field of the problem is considered to be two-dimensional plane and the configuration of the submarine pit on the sea bed is designated by a single rectangular type. The numerical simulation is performed by using the solution of the Greet function based on the boundary integral equation. The results of this study is illustrated by applying the normal incidence and partially reflecting boundaries.

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참고문헌

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