Abstract
A lateral artificial reef systems is a group of submerged, broad-crested detached breakwaters, which dissipate the incident wave energy by depth-controled breaking over the crests. A longitudinal artificial reef systems is a grope of wave heights and wave braking process through the refraction effect. Numerical of wave heights and wave-induced currents around these reef systems has been proved in good agreement with laboratory data. Performance of two systems in wave and current attenuation is compared using both laboratory data and numerical predictions.
