Numerical Simulation of Lava Flow

Shintarou YAMASHITA; Kuniaki MIYAMOTO; Mashanori OOHARA; Hideaki OTUZUKI; Takahisa MIZUYAMA

doi:10.2208/prohe.34.391

PROCEEDINGS OF HYDRAULIC ENGINEERING

Online ISSN : 1884-9172
Print ISSN : 0916-7374
ISSN-L : 0916-7374

Numerical Simulation of Lava Flow

Shintarou YAMASHITA, Kuniaki MIYAMOTO, Mashanori OOHARA, Hideaki OTUZUKI, Takahisa MIZUYAMA

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Keywords: lava flow, Bingam fluid, rate process, numerical smulation

JOURNAL FREE ACCESS

1990 Volume 34 Pages 391-396

DOI https://doi.org/10.2208/prohe.34.391

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Abstract

Lava flows are regared as Bingam fluid and its property is explained by rate process which is shown by Arrhenius formula. Then, viscosity and yield steress are shown by exponential functions of temperature.
The 1986 lava flows extruded by the fissuer eruption at lzu-Ooshima were repoduced by numerical calculation of two-dimensional unstady flow. The result of calculations fit closely actual phenomenon.

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