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Run-up heights of solitary waves on a circular island with asymmetric crest lengths

비대칭 파봉선 길이에 따른 원형섬에서 고립파의 처오름높이

  • Cho, He Rin (Water Resources Research Division, Korea Institute of Civil Engineering and Building Technology) ;
  • Cho, Yong-Sik (Department of Civil and Environmental Engineering, Hanyang University)
  • 조혜린 (한국건설기술연구원 수자원.하천 연구소) ;
  • 조용식 (한양대학교 공과대학 건설환경공학과)
  • Received : 2017.08.16
  • Accepted : 2017.08.23
  • Published : 2017.09.30

Abstract

Many islands are scattered around the southern area of the Korean Peninsula and they may be very vulnerable to unexpected tsunami attacks. During the East Japan Tsunami Event occurred on March 11, 2011, many islands located at the southern area were affected by tsunamis. In this study, maximum run-up heights of solitary waves on a circular island with asymmetrical crest lengths investigated by using a numerical model based on the shallow-water theory. The obtained results could be used by local authorities to establish a defense plan against unexpected tsunami invasion.

우리나라 해안지역에는 많은 섬들이 위치하고 있어 대규모 지진해일이 발생하였을 때 섬과 지진해일의 상호작용으로 예기치 않은 지진해일 피해가 우려된다. 2011년 발생한 동일본 지진해일의 경우 제주도를 비롯한 남해안 섬들에 영향을 미쳤다. 본 연구에서는 천수이론에 근거한 수치모형을 이용하여 섬 중앙에 대하여 비대칭으로 입사하는 고립파의 처오름높이에 관하여 연구한다. 연구에서 얻은 결과는 지진해일의 급습에 대비한 방재대책을 수립하는데 사용될 수 있을 것이다.

Keywords

References

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