Abstract
This study improved the debris model (STOC-DM) including wind load to trigger the debris drift in typhoon attack. Through the model tests with considering the drag and inertia forces due to water current and the drag force due to wind, the influence of the wind drag force was confirmed and the drift velocity was verified theoretically. Prototype numerical simulations with freight containers as debris of Mikawa port in typhoon 0918 were implemented, and the containers were moved to the wind direction not to the water flow direction. This phenomenon was also confirmed in actual site, Mikawa port. From the results, considering wind load as the external force is necessary to grasp behavior of the drifting debris in a strong wind.
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