Numerical Simulation of Internal-External Wave Field Interaction in Permeable Coastal Structures

J. Ocean Eng. Technol. 2008;22(3):18-23.

Cha Jong-Ho,Yoon Han-Sam,Ryu Cheong-Ro,Kang Yoon-Koo

Dept. of Harbor Yooshin Engineering Corporation,Research Center for Ocean Industrial Development Pukyong National University,Dept. of Ocean Engineering Pukyong National University,Engineering Construction Group Samsung Corporation

투과성 해안구조물 내-외부 파동장의 수리특성에 관한 순치모의

차종호,윤한삼,류청로,강윤구

(주)유신코퍼레이션 항만부,부경대학교 해양산업개발연구소,부경대학교 해양공학과,(주)삼성물산 건설부문

Keywords: Permeable coastal structure, Drag coefficient, Porosity, Internal-external wave field, CADMAS-SURF

핵심용어: 투과성 해안구조물, 항력계수, 공극률, 내-외부 파동장, 수치파동수로

Abstract

This study investigated interactions between the internal-external wave field of a permeable coastal structure consisting of rubble. The study examined the application criteria of an existing numerical model (CADMAS-SURF V.4.0) and proposed a modified method to provide reasonable results. In particular, the study focused on and emphasized the water surface profiles in front of a structure, wave run-up/run-down on a slope, and internal water level fluctuations due to the drag coefficient and porosity of a rubble mound structure. In conclusion, the result show that when the vertical fluctuations of the internal water levels in permeable coastal structures exhibited high-quality representation. Sane responses can be seen for wave run-up/run-down characteristics on its slopes.