Effect of Pipe Diameter Variation on Transmission of Porous Breakwater

Abstract

Abstract The porous breakwater is a breakwater designed in a transitional sea with an upright position in the direction of the waves that protect the coastal area from erosion and abrasion as it is caused by wave energy. This study aims to determine the effect of pipe diameter and depth variation on wave transmission in porous breakwaters and to analyzing the parameters that affect the transmission coefficient on wave dampers. It was conducted at the Hydraulic Laboratory of the Faculty of Engineering, Hasanuddin University, Gowa. It uses an experimental-based method with a model. The resulting waveform consists of three variation periods (T; 1,0 s, T; 1,1 s, T; 1,2 s) and two water depth variations (d; 36 cm, d; 28 cm). The results of the study indicated that the parameters that influence the transmission coefficient (Kt) are wave height (Hi), wavelength (L), wave period (T), water depth (d), and pipe diameter (Ø).

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