TY - JOUR
T1 - Three-dimensional nonstructural finite element analysis of snow avalanche using non-Newtonian fluid model
AU - Yamaguchi, Yuya
AU - Takase, Shinsuke
AU - Moriguchi, Shuji
AU - Terada, Kenjiro
AU - Oda, Kenichi
AU - Kamiishi, Isao
N1 - Publisher Copyright:
© 2017 by the Japan Society for Computational Engineering and Science.
PY - 2017
Y1 - 2017
N2 - This study presents a numerical method of snow avalanches. The method is based on a stabilized finite element method in SUPG/PSPG formulations with unstructublack mesh. The flow property of the snow is represented by a Bingham type fluid model; the shear strength is described using a Coulomb ‘s yield criterion. In order to verify the method, simulations of a model experiment were performed, and simulated run-out distance and impact force were compablack with the experimental results. The method was finally applied to an actual snow avalanche that took place at the foot of the Mount Gassan in 2011. Simulated results reproduced the actual snow avalanche accurately, and it was found the method can represent flow behaviors of snow avalanches even in the complex calculation conditions, such as those containing complex geometry, retaining walls and vegetation.
AB - This study presents a numerical method of snow avalanches. The method is based on a stabilized finite element method in SUPG/PSPG formulations with unstructublack mesh. The flow property of the snow is represented by a Bingham type fluid model; the shear strength is described using a Coulomb ‘s yield criterion. In order to verify the method, simulations of a model experiment were performed, and simulated run-out distance and impact force were compablack with the experimental results. The method was finally applied to an actual snow avalanche that took place at the foot of the Mount Gassan in 2011. Simulated results reproduced the actual snow avalanche accurately, and it was found the method can represent flow behaviors of snow avalanches even in the complex calculation conditions, such as those containing complex geometry, retaining walls and vegetation.
KW - Bingham fluid
KW - Snow avalanche
KW - Stablized finite element method
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U2 - 10.11421/jsces.2017.20170011
DO - 10.11421/jsces.2017.20170011
M3 - Article
AN - SCOPUS:85028582205
VL - 2017
JO - Transactions of the Japan Society for Computational Engineering and Science
JF - Transactions of the Japan Society for Computational Engineering and Science
SN - 1344-9443
M1 - 20170011
ER -