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DOI | 10.1029/2021GL096054 |
Finite-Size Analysis of the Collapse of Dry Granular Columns | |
Teng Man; Herbert E. Huppert; Ling Li; Sergio A. Galindo-Torres | |
2021-12-03 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | In this letter, we focus on the size effect of granular column collapses, which are potentially connected to the dynamics of complex geophysical flows, even if the link between microscopic structures of granular assemblies and their macroscopic behaviors is still not well understood. Using the sphero-polyhedral discrete element method (DEM), we show that the column radius/grain size ratio has a strong influence on the collapse behavior. A finite-size analysis, which is inspired by a phase transition around an inflection point, is performed to obtain a general scaling equation with critical exponents for run-out distances. We further link the size effect with the strong force network and formalize a correlation length scale that exponentially scales with the effective aspect ratio. Such a scaling solution shows similarities with the percolation problem of two-dimensional random networks and can be extended to other similar natural and engineering systems. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/343093 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Teng Man,Herbert E. Huppert,Ling Li,et al. Finite-Size Analysis of the Collapse of Dry Granular Columns[J]. Geophysical Research Letters,2021. |
APA | Teng Man,Herbert E. Huppert,Ling Li,&Sergio A. Galindo-Torres.(2021).Finite-Size Analysis of the Collapse of Dry Granular Columns.Geophysical Research Letters. |
MLA | Teng Man,et al."Finite-Size Analysis of the Collapse of Dry Granular Columns".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
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