Variation of Harbor Response due to Construction of A New Port in Youngil Bay

Kim, Ji-Yeon; Lee, Joong-Woo; Lee, Hak-Seung; Yang, Sang-Yong

Journal of Navigation and Port Research 2004;28(5):421-428.
Published online June 30, 2004.

영일만 신항 건설에 따른 항만 정온도의 변화

김지연, 이중우, 이학승, 양상용

Variation of Harbor Response due to Construction of A New Port in Youngil Bay

Ji-Yeon Kim, Joong-Woo Lee, Hak-Seung Lee, Sang-Yong Yang

Abstract

Introduction of wave model, considered the effect of shoaling, refraction, diffraction, partial reflection, bottom friction, breaking at the coastal waters of complex bathymetry, is a very important factor for most coastal engineering design and disaster prevention probelems. As waves move from deeper waters to shallow coastal waters, the fundamental wave parameters will change and the wave anergy is redistributed along wave crests due to the depth variation, the presence of islands, coastal protection structures, irregularities of the enclosing shore boundaries, and other geological features. Moreover, waves undergo severe change inside the surf zone where wave breaking occurs and in the regions where reflected waves from coastline and structural boundaries interact with the incident waves wherefore, the application of mild-slope equation model in this field would help for understanding of wave transformation mechanism where many other models could not deal with up to now. The purpose of this study is to form a extended mild-slope equation wave model and make comparison and analysis on variation of harbor responses in the vicinities of Pohang Old Harbor and Pohang New Port, etc due construction of New Port in Yongil Bay. This type of trial might be a milestone for port development in macroscale, where the induced impact analysis in the existing port due to the developemnt could be easily neglected.

Key Words: Coastal waters;Refraction and diffraction;Bottom friction;Breaking;Disaster prevention;Extended mild-slope equation;Wave model;Energy redistribution