Simulation of Overflow Phenomena via Underground Drainage Channels and Pits caused by Tsunami

Abstract

This paper studies about flood disasters via drainage channels caused by tsunami, which may occur even if high seawalls protect coastal land area from tsunami. The flood could make loss of evacuation routes and be an obstacle to the safety measures, thus considering the countermeasures is important for industrial facilities from the points of view of business continuity. It was found that two phases numerical analysis consisting of water and air is applicable to simulate the flood disasters via drainage channels caused by tsunami comparing with that hydraulic physical model tests.