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  1. 防災科研関係論文

Simulation of a snow avalanche model test using computational fluid dynamics

https://nied-repo.bosai.go.jp/records/5728
https://nied-repo.bosai.go.jp/records/5728
e122a5c6-9cfe-4bc2-b959-ae30cbb3efaa
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Simulation of a snow avalanche model test using computational fluid dynamics
著者 Kenichi Oda

× Kenichi Oda

en Kenichi Oda

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Shuji Moriguchi

× Shuji Moriguchi

en Shuji Moriguchi

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Isao Kamiishi

× Isao Kamiishi

en Isao Kamiishi

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Atsushi Yashima

× Atsushi Yashima

en Atsushi Yashima

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Kazuhide Sawada

× Kazuhide Sawada

en Kazuhide Sawada

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Atsushi Sato

× Atsushi Sato

en Atsushi Sato

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抄録
内容記述タイプ Other
内容記述 Here we apply a two-phase flow model to simulate snow avalanche motion. Flowing snow is modeled as a Bingham fluid. Small-scale laboratory experiments were conducted using a rotating viscometer to validate the constitutive model. Experimental scale model test-runs were also performed, and run-out distances and impact pressures obtained in the model tests were reproduced using the twophase flow model. Comparisons revealed that the simulated results were strongly dependent on the basal friction angle and calculation mesh size. Although the method reproduced the laboratory model results quite well, constitutive aspects of the basal surface remained unsolved. Future research will need to incorporate a numerical technique to handle the basal boundary, such as a boundary-fitted coordinate technique.
言語 en
書誌情報 en : Annals of Glaciology

巻 52, 号 58, p. 57-64, 発行日 2011-08
ISSN
収録物識別子タイプ ISSN
収録物識別子 0260-3055
DOI
関連識別子 10.3189/172756411797252284
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