Abstract
In order to take countermeasures against tsunami disasters, it is important to understand deformation of tsunami runup on shore, characteristics of flow around structures, and mechanism of tsunami wave force acting on the structures. In this study, we carried out the hydraulic model test and the numerical analysis to clarify characteristics of flow around the oil tank on shore acted by tsunami. Thorough the hydraulic model test, the following findings were obtained. Separation vortexes appeared behind the tank and the fast-flowing area shifted to the rear of the tank as the distance from it was farther. Maximum velocity was close to0.8m/s and there was great possibility of scour of foundation around the tank. It was possible to simulate these characteristics around the oil tank by numerical analysis.
