Fundamental Studies on Applications of MPS Method for Computing Snow Avalanches
Fundamental Studies on Applications of MPS Method for Computing Snow Avalanches
复制标题
MPS方法计算雪崩应用基础研究
DOI：
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
Yoshihiko Saito
中科院分区：
文献类型：
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作者：
T. Otsuka;Y. Shimizu;I. Kimura;Masaya Otsuki;Yoshihiko Saito
3 Yukiken Snow Eaters，co. ltd.本文介绍了MPS方法对雪崩的适用性的一些考虑。MPS方法是再现具有大尺度表面变形的流动现象的有力工具。为了将这种方法应用于雪崩，我们修改了原来的模型，引入宾汉流体的本构方程和空气的拖曳力的影响。将修正后的模型应用于一些简单的情况，并通过与实验结果的比较来评估模型的性能。然后，将修正后的模型应用于吸雪框架的消能现象。计算结果表明，该数值模式能较好地反映雪崩现象的基本特征，是预测和预防雪崩灾害的有力工具。
3 Yukiken Snow Eaters, co. ltd. This paper presents some considerations on applicability of the MPS method for snow avalanches. The MPS method is a powerful tool to reproduce flow phenomena with large scale surface deformation. In order to apply this method to snow avalanches, we modified the original model to introduce a constitutive equation of Bingham fluid and effects of drag force due to air. The modified model was applied to some simple cases and evaluated the model performances through comparisons with experimental results. Then, the modified model was applied to the energy dissipating phenomena by a snow absorbing frame. The computational results showed that the present numerical model can capture the fundamental aspects of snow avalanche phenomena satisfactorily and can be a powerful tool for prediction and prevention of disasters due to snow avalanches.
基于流体动力学的土工材料流动破坏数值模拟
DOI：
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发表时间：
2005
期刊：
Soils and Foundations Vol.45
影响因子：
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作者：
Moriguchi;S.
通讯作者：
S.
影响因子：
1.2
作者：
Koshizuka, S;Oka, Y
通讯作者：
Oka, Y