Coupled Tsunami Simulations Based on a 2D Shallow-Water Equation-Based Finite Difference Method and 3D Incompressible Smoothed Particle Hydrodynamics

Mitsuteru Asai, Yoshiya Miyagawa, Nur'ain Idris, Abdul Muhari, Fumihiko Imamura

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    In 2011, the tsunami generated by the Great East Japan Earthquake devastated infrastructure along the Pacific coast of northeastern Japan. In particular, the collapse of bridges resulted in much disruption to traffic, which led to delays in recovery after the disaster. We are developing a multi-scale and multi-physics tsunami disaster simulation tool to evaluate the safety and damage of infrastructure from huge tsunami. Multistage zooming tsunami analysis is one of the possible methods for implementing a high-resolution three-dimensional (3D) tsunami inundation simulation for a city. In this research, a virtual wave source that includes transition layers is proposed for a coupled simulation based on 3D particle simulation. The zooming analysis has been undertaken using the same particle method and a two-dimensional (2D) finite difference simulation. The 3D particle coupled simulation has been examined and validated.

    Original languageEnglish
    Article number1640019
    JournalJournal of Earthquake and Tsunami
    Volume10
    Issue number5
    DOIs
    Publication statusPublished - 2016 Dec 1

    Keywords

    • SPH
    • multi-scale simulation
    • tsunami inundation

    ASJC Scopus subject areas

    • Oceanography
    • Geotechnical Engineering and Engineering Geology
    • Geophysics

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