An Analysis of Wave Height Distribution in the Vicinity of Samcheon New-Harbor

J. Ocean Eng. Technol. 2010;24(1):39-46.

Jang Dae-Jeong,Ham Gye-Un

Dept. of Civil Eng. College of Eng. Gyeongsang National University,Dept. of Civil Eng. College of Eng. Gyeongsang National University

삼천포 신항의 파고분포 해석

장대정,함계운

경상대학교 공과대학 토목공학과,경상대학교 공과대학 토목공학과

Keywords: Wave transformation, Wave height distribution, Time dependent mild slope equation, Refraction, Diffraction, Reflection

핵심용어: 파랑변형, 파고분포, 시간의존 완경사방정식, 굴절, 회절, 반사

Abstract

The calmness inside a harbor plays an important role in the appropriate disposition of harbor structures. However, it is not easy to acquire accurate computational results because these are affected by many factors concerned with wave transformation. Recently, numerical model tests, which are quicker and more economical than hydraulic model experiments, were carried out for the purpose of analyzing wave height distributions in harbors. This paper presents a numerical model that is able to calculate wave heights inside a harbor. It is based on a time-dependent mild slope involving wave refraction, diffraction, shoaling effect, and reflection. In particular, arbitrary reflectivity is used at the boundary in order to simulate the real harbor reflection condition. The proposed numerical model is applied to Samcheon new-harbor in order to investigate harbor calmness.