Examining the combined effect of the width and draft of Pontoon-type floating breakwater on the variation of wave transmission coefficient by using numerical modeling

Naghavi, Mohammad; Lotfollahi Yaghin, Mohammad Ali

Examining the combined effect of the width and draft of Pontoon-type floating breakwater on the variation of wave transmission coefficient by using numerical modeling

Document Type : Original Article

Authors

mohammad naghavi

mohammad ali lotfollahi yaghin

Abstract

In this study, the combined effects of different structural parameters such as berth and draft of Pontoon-type floating breakwater on the variation of wave transmission coefficient is examined. To find the combined effect of the width and draft of floating breakwater on the wave transmission coefficient, three drafts of 0.8, 1 and 1.2 m and five widths of 2.4, 4.8, 7.2, 9.6 and 12 m were examined. The analysis was performed for average periods of 2, 2.5, 3, 3.5 and 4 seconds, and the wave height range of 0.2 to 1.2 m. According to analysis done by the ANSYS AQWA software, the results showed that by increasing the width and draft of floating breakwater, the wave transmission coefficient dramatically reduced, so that the wave transmission coefficient increased from 0.88 for a breakwater width of 2.4 m, draft 0.8 m to 0.34 for a breakwater width of 12 m and draft of 1.2 m.

Keywords

ANSYS AQWA

Wave transmission coefficient

Pontoon

type floating breakwaters

Structural parameters