Masoud Nazari - technical consultant, Tous Darya Engineering Design Center
Mohammad Javad Ketabdari - Associate Professor, Amirkabir University of Technology

This paper describes results of numerical study on wave reflection from perforated-wall caisson breakwaters. There are basic parameters defining the geometry and shape of a perforated- wallcaisson breakwater such as: wave chamber width, thickness of perforated wall, and the degree of porosity. In this study the effect of geometry of caisson structure on reflection of irregular waves are presented. A numerical code was developed to model wave reflection from perforated breakwater in MATLAB. Small-amplitude wave theory has been used to simulate the behavior of irregular waves reflected from caisson breakwaters having different geometries. The resultsshow that shape and size of slits have great role on damping and absorbing of incident wave energy.

Perforated Breakwater, Caisson, Reflection, Irregular Waves