Depth dependence of vertical plunging force in granular medium
文献类型：期刊论文
| 作者 | Peng, Z ; Xu, XT ; Lu, KQ ; Hou, MY |
| 刊名 | PHYSICAL REVIEW E
 |
| 出版日期 | 2009 |
| 卷号 | 80期号:2 |
| 关键词 | SLOW PROPAGATION ELASTICITY BOTTOM DRAG FLOW |
| ISSN号 | 1539-3755 |
| 通讯作者 | Peng, Z: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Depth dependence of vertical plunging force in granular medium is studied experimentally by measuring the slow-pushing force of different size and shape objects intruding vertically into a granular bed. It is found that all of the force curves of fully immersed intruders have concave-to-convex transition. The depth dependence of the force turns from supralinear to sublinear. By studying the properties of the inflection point of the concave-convex transition, we find that the plunging force at inflection point is proportional to intruder's volume, and the inflection point occurs when the intruder is fully buried to a level around twice its diameter. Testing by plunging a long cylinder, which is always partially immersed, we find no inflection point in this case, which verifies that the inflection of the plunging force is related to the filled-in loose granules on top of the intruder. The slowdown of the increasing rate of the force is, therefore, not a result of sidewall support proposed by previous researchers. |
| 收录类别 | SCI |
| 资助信息 | Chinese Science Foundation [10720101074, 10874209]; Chinese Academy of Sciences [KKCX1YW-03, KJCX2-YW-L08] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/35767]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Peng, Z,Xu, XT,Lu, KQ,et al. Depth dependence of vertical plunging force in granular medium[J]. PHYSICAL REVIEW E,2009,80(2). |
| APA | Peng, Z,Xu, XT,Lu, KQ,&Hou, MY.(2009).Depth dependence of vertical plunging force in granular medium.PHYSICAL REVIEW E,80(2). |
| MLA | Peng, Z,et al."Depth dependence of vertical plunging force in granular medium".PHYSICAL REVIEW E 80.2(2009). |
入库方式： OAI收割
来源：物理研究所
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