Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
Online ISSN : 1883-8944
Print ISSN : 1884-2399
Numerical Simulation on Tsunami due to Sector Collapse by Solid-Liquid Two-Phase Flow Model Based on Accurate Particle Method
Hitoshi GOTOHHiroyuki IKARITakayuki MATSUBARATakashi ITO
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2011 Volume 67 Issue 2 Pages I_196-I_200

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Abstract

Tsunami due to sector collapse with volcanic activity does not occur frequently, however, has caused enormous damages. Because density of soil collapse distributes widely depending on its cause of generation, a process of impact into water which drives a tsunami is not simple. In this paper, experiments, in which particles with two kinds of density fall down on a slope and impact with a still water surface, are carried out, and two defferent processes of tsunami generation are confirmed. On the other hand, a solid-liquid two-phase flow model based on an accurate particle method are developed to execute numerical simulations for reproduction of these phenomena.

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© 2011 by Japan Society of Civil Engineers
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