Density distribution of particles upon jamming after an avalanche in a 2D silo

IF 1.2 Q3 PHYSICS, MULTIDISCIPLINARY

Papers in Physics Pub Date : 2015-04-29 DOI:10.4279/PIP.070007

R. Uñac, J. L. Sales, M. Gargiulo, A. Vidales

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引用次数: 1

Abstract

We present a complete analysis of the density distribution of particles in a two dimensional silo after discharge. Simulations through a pseudo-dynamic algorithm are performed for filling and subsequent discharge of a plane silo. Particles are monosized hard disks deposited in the container and subjected to a tapping process for compaction. Then, a hole of a given size is open at the bottom of the silo and the discharge is triggered. After a clogging at the opening is produced, and equilibrium is restored, the final distribution of the remaining particles at the silo is analyzed by dividing the space into cells with different geometrical arrangements to visualize the way in which the density depression near the opening is propagated throughout the system. The different behavior as a function of the compaction degree is discussed. Received: 9 December 2014, Accepted: 13 April 2015; Edited by: L. A. Pugnaloni; Reviewed by: F. Vivanco, Dpto. de Fisica, Universidad de Santiago de Chile, Chile; DOI: http://dx.doi.org/10.4279/PIP.070007 Cite as: R. O. Unac, J. L. Sales, M. V. Gargiulo, A. M. Vidales, Papers in Physics 7, 070007 (2015) This paper, by R. O. Unac, J. L. Sales, M. V. Gargiulo, A. M. Vidales , is licensed under the Creative Commons Attribution License 3.0 .

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二维筒仓雪崩后颗粒堵塞的密度分布

我们提出了一个完整的分析颗粒密度分布在一个二维筒仓后的排放。利用拟动态算法对平面筒仓的充填和后续卸料进行了仿真。颗粒是在容器中沉积的单尺寸硬盘，并经过攻丝过程进行压实。然后，在筒仓底部打开一个给定尺寸的孔，并触发排放。在开口处产生堵塞并恢复平衡后，通过将空间划分为具有不同几何排列的单元来分析筒仓中剩余颗粒的最终分布，以可视化开口附近密度下降在整个系统中传播的方式。讨论了压实程度对不同行为的影响。收稿日期:2014年12月9日，收稿日期:2015年4月13日;编辑:L. A. Pugnaloni;审阅人:F. Vivanco, Dpto。智利圣地亚哥大学de Fisica;本文由R. O. Unac, J. L. Sales, M. V. Gargiulo, A. M. Vidales撰写，采用知识共享署名许可3.0协议。

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来源期刊

Papers in Physics PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.90

自引率

0.00%

发文量

期刊介绍： Papers in Physics publishes original research in all areas of physics and its interface with other subjects. The scope includes, but is not limited to, physics of particles and fields, condensed matter, relativity and gravitation, nuclear physics, physics of fluids, biophysics, econophysics, chemical physics, statistical mechanics, soft condensed matter, materials science, mathematical physics and general physics. Contributions in the areas of foundations of physics, history of physics and physics education are not considered for publication. Articles published in Papers in Physics contain substantial new results and ideas that advance the state of physics in a non-trivial way. Articles are strictly reviewed by specialists prior to publication. Papers in Physics highlights outstanding articles published in the journal through the Editors'' choice section. Papers in Physics offers two distinct editorial treatments to articles from which authors can choose. In Traditional Review, manuscripts are submitted to anonymous reviewers seeking constructive criticism and editors make a decision on whether publication is appropriate. In Open Review, manuscripts are sent to reviewers. If the paper is considered original and technically sound, the article, the reviewer''s comments and the author''s reply are published alongside the names of all involved. This way, Papers in Physics promotes the open discussion of controversies among specialists that are of help to the reader and to the transparency of the editorial process. Moreover, our reviewers receive their due recognition by publishing a recorded citable report. Papers in Physics publishes Commentaries from the reviewer(s) if major disagreements remain after exchange with the authors or if a different insight proposed is considered valuable for the readers.