Effectiveness of low-crested (submerged) breakwater in wave attenuation

Nowadays, submerged offshore breakwater has been constructed widely all over the
world as one of the coastal protection scheme. The main purpose is to attenuate
incoming wave and thus alter the wave condition on the lee side. This research deals
with low crested (submerged) offshore breakwater. The objectives of this research
are to find out the relationship between the variables of factors affecting wave
attenuation and to produce a well research in producing an effective and optimum
design of submerged offshore breakwaters. In this report, the author has outlined the
methodology on how the research has been conducted in the laboratory followed by
the analysis of the results and comparisons with the previous researchers. This
research is focused mainly on two variables that affect the wave attenuation which are
depth of submergence and crest width of the structure. The result shows that these
two variables do have effect on the wave attenuation where their relationships are the
wave attenuation is inversely proportional with the crest width while the wave
attenuation is directly proportional with the relative crest elevation.