Drift Behavior of Containers Caused by Solitary Wave Inundation on Wave Absorbing Revetment

Abstract

This study investigates the drifting dynamics of objects caused by tsunamis and storm surges, focusing on the influence of solitary wave size, container weight, and revetment type. Utilizing DIPP-Motion video analysis, we observed that larger solitary waves imparted greater momentum flux to containers during the inundation, resulting in increased movement speed and drift distance. Furthermore, lighter containers displayed a shallower limit depth for full floating, reducing the impact of bottom friction and leading to enhanced movement speed and drift distance. Notably, wave-absorbing revetments exhibited a reduced passage area on the slope, leading to heightened flow velocity and significantly greater movement speed and drift distance for drifting containers compared to vertical revetments. This study provides insights into the complex interactions between objects and waves governing drifting behaviors, contributing to the development of more effective mitigation strategies for secondary disasters caused by tsunamis and storm surges.