Open AccessThe Effect of Hanging Sheet Pile Breakwater’s Draft Relative on Wave Transmission Coefficient (Kt) in Irregular Wave
Author(s) -
Chairul Paotonan,
Hasdinar Umar,
Achmad Yasir Baeda,
Taufiqur Rachman,
Wan Abdul Manan Wan Hasan
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/676/1/012022
Subject(s) - breakwater , transmission coefficient , pile , wave flume , rubble , geotechnical engineering , sheet pile , flume , wave height , geology , hull , generator (circuit theory) , armour , engineering , marine engineering , mechanics , wave propagation , physics , transmission (telecommunications) , materials science , breaking wave , oceanography , optics , electrical engineering , flow (mathematics) , composite material , layer (electronics) , power (physics) , quantum mechanics
Breakwater is a structure that builds parallel to the coast, and located within some distance from the coastline. The breakwater that is currently and widely used is Rubble Mound Breakwater; a large dimension coastal structure with also come in high price. Due to this matter, a Hanging Sheet Pile type breakwater can be one of good solution. This research was conducted at Ocean Technology Laboratory, Faculty of Engineering, Universitas Hasanuddin, in a flume thank with 1:25 model scale, and equipped with wave generator and probes as measurement apparatus. The purpose of this study is to identify the effect of wave parameters (H i /gT 2 ) and structure parameters (draft relative, s/d) on fluctuated wave transmission coefficients produced. The waves are in the form of irregular waves that generated using JONSWAP spectrum. There were 5 variations in wave height (H) and wave period (T), while variations of structure in the form of draft (s) are in 3 variations. The results of this study indicate that the value of K t will decrease when H i /gT 2 value increase; so that the greater the value of s/d, the smaller value of K t will be.