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引用次数: 6
摘要
我们描述了一个简单的实验，涉及球体沿斜面滚向瓶颈并穿过间隙。实验结果表明，在靠近瓶颈的最佳位置放置障碍物可以提高流量。我们利用这个实验开发了一个使用PhysX物理引擎的计算机模拟。仿真结果证实了实验结果，并提出了建立与实验结果吻合的模型所需要考虑的几个问题。我们证明，该模型显示堵塞，间歇和连续流动，它可以用作进一步研究颗粒流动的工具。收稿日期:2015年11月22日，收稿日期:2016年2月19日;编辑:L. A. Pugnaloni;审评人:C. M. Carlevaro，阿根廷拉普拉塔市生物系统与液体科学研究所;A Murray, F Alonso-Marroquin, Papers in Physics 8,080003(2016)本文采用知识共享署名许可3.0。
We describe a simple experiment involving spheres rolling down an inclined plane towards a bottleneck and through a gap. Results of the experiment indicate that flow rate can be increased by placing an obstruction at optimal positions near the bottleneck. We use the experiment to develop a computer simulation using the PhysX physics engine. Simulations confirm the experimental results and we state several considerations necessary to obtain a model that agrees well with experiment. We demonstrate that the model exhibits clogging, intermittent and continuous flow, and that it can be used as a tool for further investigations in granular flow. Received: 22 November 2015, Accepted: 19 February 2016; Edited by: L. A. Pugnaloni; Reviewed by: C. M. Carlevaro, Instituto de Fisica de Liquidos y Sistemas Biologicos, La Plata, Argentina; DOI: http://dx.doi.org/10.4279/PIP.080003 Cite as: A Murray, F Alonso-Marroquin, Papers in Physics 8, 080003 (2016) This paper, by A Murray, F Alonso-Marroquin , is licensed under the Creative Commons Attribution License 3.0 .
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.
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