Numerical Simulation of Lava Flow

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1990Publisher:Japan Society of Civil EngineersJournal:PROCEEDINGS OF HYDRAULIC ENGINEERING, volume 34, pages 391-396 (issn: 0916-7374, eissn: 1884-9172,

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

doi: 10.2208/prohe.34.391

Numerical Simulation of Lava Flow

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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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