Development of a Wave Absorbing System Using an Inclined Punching Plate

J. Ocean Eng. Technol. 2004;18(1):1-6.

경사형 타공판을 이용한 소파장치 개발

조일형,홍석원

제주대학교 해양산업공학부,한국해양연구원 해양시스템 안전연구소

Keywords: Wave Absorber, Punching Plate, Porosity, Reflection Coefficient, Inclined Plate, Boundary Element Method, Model Test

핵심용어: 소파장치, 타공판, 공극율, 반사율, 경사판, 경계요소법, 모형실험

Abstract

In this paper, the performance of a wave absorbing system using an inclined punching plate, was investigated. Using the multi-domain boundary element method (BEM), the reflection coefficients of an inclined punching plate were tested with various design parameters, such as inclined angle, porosity, and wave frequencies. To confirm the numerical solutions, the systematic model test was conducted at 2-D tank and square tank. The numerical results were in good agreement with the experimental results within the entire frequency range. It was found that an inclined punching plate had an excellent wave absorbing efficiency, compared to a horizontal one. Also, the optimal range of an inclined angle had an excellent wave absorbing efficiency, compared to a horizontal one the optimal range of the inclined angle is 10