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A Simulation of Wave Induced Current Around the Jeju New Harbor  

Kwak, Moon-Su (명지전문대학 토목과)
Pyun, Chong-Kun (명지대학교 토목환경공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.4, no.3, 2004 , pp. 1-8 More about this Journal
Abstract
In this study, the change of the current in the coastal zone before and after the construction of Jeju new harbor was predicted by using the numerical model, which uses Hardy-Cross method. The numerical model was carried out for the present state, before the construction, and the state after the construction, and for the wave direction the NNW direction for winter and NE direction for summer were tested so that the seasonal change may be considered. The computation result shows that a large amount of the wave induced current was occurred when there were high waves coming in from NNW direction before and after the construction. Also, before the construction a longshore current occurred moving from the west to the east at the new harbor construction site so that it formed a rip current in the Hwabuk-dong front sea. And also, after the construction, the tip current produced changed into nearshore circulating current and a small circulating current appeared at the harbor entrance. On the other hand, at Samyang 4each, which is 3.0km away from the new harbor in the NE direction, shows that there was a longshore current occurred from the west to the east, which is in the opposite direction the new harbor, and the effect on the new harbor by sediment transport at Samyang beach is thought to be very small.
Keywords
Wave Induced current; Hardy-Cross method; Numerical analysis; Jeju new harbor;
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