Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Analytical Method for Determining the Degree of Wave Refraction

파랑의 굴절 정도를 예측하는 해석기법

  • Jung, Tae-Hwa (Department of Civil and Environmental Engineering, Hanbat National University) ;
  • Lee, Changhoon (Department of Civil and Environmental Engineering, Sejong University)
  • 정태화 (한밭대학교 건설환경공학과) ;
  • 이창훈 (세종대학교 건설환경공학과)
  • Received : 2018.10.08
  • Accepted : 2018.10.19
  • Published : 2018.10.31
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Abstract

An analytical method for determining the degree of wave refraction is investigated. The ray tracing method previously used to calculate wave propagating cannot explain the degree of refraction caused by different kinds of conditions. In this study, we suggest the index of refraction degree using the principle that refraction is caused by the difference of phase velocities along the crest line.

해석적인 방법을 이용하여 파랑의 굴절 정도를 예측하는 기법을 개발하였다. 굴절을 계산하기 위해 기존에 사용하였던 파향선법의 경우에는 파의 진행을 해석할 순 있지만 다양한 조건에서 발생하는 굴절의 차이는 설명할 수 없다. 본 연구에서는 굴절이 파봉선 방향으로 위상속도의 차이에 의해 발생하는 점에 착안하여 다양한 조건에서 발생하는 굴절의 차이를 설명할 수 있는 굴절수를 제안하였다.

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References

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