Study on Tidal Current Simulation and its Application to Speed Trial around Straits of Korea

J. Ocean Eng. Technol. 2010;24(6):23-29.

Lee Hee-Su,Choi Dai-Hyun,Park Jong-Chun,Jeong Se-Min,Kim Young-Hun

Dept. of Naval Architecture and Ocean Engineering Pusan National University,Samsung Heavy Industries Co. Ltd.,Dept. of Naval Architecture and Ocean Engineering Pusan National University,Dept. of Environment System Graduate School of Frontier Sciences

대한해협에서의 선박의 속력 시운전시 조류 예측에 관한 연구

이희수,최대현,박종천,정세민,김영훈

부산대학교 조선해양공학과,삼성중공업(주) 종합설계,부산대학교 조선해양공학과,동경대학대학원 신영역창성과학연구과 환경시스템학,경남대학교 조선해양IT공학과

Keywords: Tidal current, Tidal amplitude, Speed trial, MEC ocean model, Straits of Korea

핵심용어: 조류, 조위, 속력 시운전, MEC 해양모델, 대한해협

Abstract

Korean shipbuilding companies have sometimes carried out sea trials to measure a vessel's speed performance around the western channel of the Straits of Korea, where the flow fields are very complicated because of the effect of various flows such as sea, tidal, geostrophic, and wind-driven currents. Because these flows seem to present significant interference to a ship, the numerical reproduction of the flow-fields in the vicinity of the target sites could provide a better understanding of the sea environments while performing sea trials. In this study, we used the MEC ocean model to simulate the tidal currents around Tsushima Island and compared the simulated tidal amplitudes and currents with the measurements of Teague et al. (2001). The tidal amplitudes of the present simulation results agreed well with the observations. Based on the numerical simulation, the optimal direction and proper sites for a speed trial are described.