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

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

직사각형 격자체계에서의 원호형 내부조파

Internal Generation of Waves on an Arc In A Rectangular Grid System

  • 이창훈 (세종대학교 토목환경공학과) ;
  • 최혁진 ((주)대영엔지니어링 기술연구소) ;
  • 김덕구 ((주)혜인E&C 기술연구소)
  • 발행 : 2006.03.01
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서 직사각형 격자 체계에서 원호형 내부조파에 의한 선 조파기법을 개발하였다. 총 다섯 가지 조파형식의 수치실험이 다음의 조건에 수행되었다. 즉, 일정수심에서의 파랑의 전파, 일정경사를 가지는 평면에서의 굴절과 천수, 반무한 방파제에서 회절 실험을 수행하였다. 수치실험 수행 시 기본방정식으로 Suh et al. (1997)이 제안한 확장형 완경사방정식을 이용하였다. 두 개의 평행한 직선이 반원으로 연결된 제5형식 조파기법을 사용하면 가장 우수한 결과를 얻을 수 있었다. 특히, 격자간격이 작은 경우에 그 우수성이 확연히 드러났다.

This paper presents the techniques developed using the line source method to internally generate waves on an arc in a rectangular grid system. For five different types of wave generation layouts, quantitative experiments were conducted under the following conditions: the propagation of waves on a flat bottom, the refraction and shoaling of waves on a planar slope, and the diffraction of waves to a semi-infinite breakwater. Numerical experiments were conducted using the extended mild-slope equations of Suh et al. (1997). The fifth type of wave generation layout, consisting of two parallel lines connected to a semicircle, showed the best solutions, especially for a small grid size.

키워드

참고문헌

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