실린더형 슬릿 방파제의 개발을 위한 실험적 해석

Abstract

In this study, a series of laboratory experiments was carried out to investigate the weak reflection of irregular waves over a train of protruded permeable breakwaters. A cylindrical slit type breakwater and alternatives are employed and compared for reflecting and transmitting capabilities of incident waves. A series of random waves was generated by using the Bretschneider-Mitsuyasu frequency and directional spectrum. Measured spectrum of irregular waves without breakwaters is verified by comparing with those of the input waves generated. It is found that the transmission of directional irregular waves increases as the high frequency parameter increases. Reflection coefficients of permeable submerged breakwaters are less than those of impermeable breakwaters. The upside-down L shape is recommended for a small fishery harbor mooring in terms of reflecting capability and practical application. I received reflection & transmission values in Hydraulic Experiment. I Applied the values to SWAN model and analyzed harbor calmness.