FLUID FORCE ON A LARGE STRUCTURE DUE TO AN INUNDATED FLOW CAUSED BY A TSUNAMI

Abstract

Hydraulic experiments are carried out to clarify fundamental characteristics of fluid force on a large structure due to an inundated flow caused by a tsunami. Impulsive force at an early stage, and drag force, buoyancy and uplift pressure at a quasi-steady stage after the early stage are taken up as the fluid force. Dependency of drag coefficient on hydraulic quantities and opening ratio of structures is also examined.