Solid-liquid Flows Simulation for Debris Avalanche Analysis

机译：固体-液体流动模拟雪崩分析

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From a view point of engineering application, solid-liquid flow is one of the most practical phenomena, however MPS and other particle methods usually premises a constant size of all particles in the model. In a realistic phenomenon, the size of those particles is different. Koshizuka et al. has proposed new algorithm for solid-liquid flow simulation which is multi-scale DEM-MPS method. The method can calculate solid -liquid flow with a large difference of the particle scale. However, its program code requires a DEM part and a MPS part, and actual phenomenon includes various scales of particles. In order to analyze solid-liquid flow with different particles, modified Laplacian model and variable cut-off radius MPS method is proposed. This modification can directly deals with small particles and large particles. Calculation cost is kept and visualization of the results has more reality by these modifications.

机译：从工程应用的角度来看，固液流动是最实际的现象之一，但是MPS和其他粒子方法通常以模型中所有粒子的大小恒定为前提。实际上，这些粒子的大小是不同的。 Koshizuka等。提出了一种新型的多尺度DEM-MPS固液流动模拟算法。该方法可以计算出粒径相差很大的固液流量。但是，其程序代码需要DEM部分和MPS部分，并且实际现象包括各种比例的粒子。为了分析不同颗粒的固液流动，提出了改进的拉普拉斯模型和可变截止半径MPS方法。这种修改可以直接处理小颗粒和大颗粒。通过进行这些修改，可以保持计算成本，并使结果的可视化更加现实。

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来源
《Fracture and strength of solids VII》|2010年|p.855-860|共6页
会议地点 Kuala Lumpur(MY);Kuala Lumpur(MY)
作者
Takuya Toyoshi; Yoshitaka Wada; Masanori Kikuchi;
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作者单位

Department of Mechanical Systems Engineering, Tokyo University of Science, Suwa Toyohira 5000-1, Chino, Nagano 391-0292, Japan;

Department of Mechanical Systems Engineering, Tokyo University of Science, Suwa Toyohira 5000-1, Chino, Nagano 391-0292, Japan;

Department of Mechanical Engineering, Tokyo University of Science, Yamazaki 2641, Noda, Chiba 278-8510, Japan;

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原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
MPS method; Solid-liquid flow and particle size control;

机译：MPS方法；固液流量和粒度控制;

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Solid-liquid Flows Simulation for Debris Avalanche Analysis

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