Wave Reflection and Transmission Coefficients of Rubble Mound Breakwaters under Oblique Incident Waves

J. Ocean Eng. Technol. 2001;15(1):31-35.

경사입사파랑중의 사석방파제에 의한 반사율과 투과율에 관한 연구

배기성,김도삼

경상대학교 토목환경공학부(해양산업연구소),한국해양대학교 토목환경공학부

Keywords: Obliquely incident waves, Rubble mound breakwater, Boundary integral equation method, Wave reflection and transmission

핵심용어: 경사입사파, 사석방파제, 경계적분방정식법, 파의 반사와 투과

Abstract

By applying the Boundary Integral Equation Method (BIEM) to obliquely incident for Rubble Mound Breakwater (RMB), wave reflection and transmission the coefficients are studied numerically. The validity of and the present BIEM is confirmed by comparing it with 1)numerical results of the eigenfunction expansion method of Dalrymple et al.(1991), and 2)numerical results of the BIEM of Kojima et al.(1988). Therefore, the characteristics of RMB for obliquely incident waves are investigated according to the variations of the wave period, equivalent linear nondimensional friction coefficient and direction of incident waves. It is revealed that the wave transformations of obliquely incident waves are different from those of normally incident waves.