| Influence of an inserted bar on the flow regimes in the hopper |
| |
| 作者姓名： | 彭毅 张晟 王梦柯 杨光辉 万江锋 陈良文 杨磊 |
| |
| 作者单位： | Institute of Modern Physics;University of Chinese Academy of Sciences;East China University of Technology |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China(Grant Nos.11705256 and 11905272);National Postdoctoral Program for Innovative Talents,China(Grant No.BX201700258);West Light Foundation of the Chinese Academy of Sciences(Grant No.2018-98)。 |
| |
| 摘 要： | We investigated the influence of an inserted bar on the hopper flow experimentally.Three geometrical parameters,size of upper outlet D1,size of lower outlet D0,and the height of bar H,are variables here.With varying H we found three regimes:one transition from clogging to a surface flow and another transition from a surface flow to a dense flow.For the dense flow,the flow rate follows Beverloo’s law and there is a saturation of inclination of free surfaceθ.We plotted the velocity field and there is a uniform linear relation between the particle velocity and depth from the free surface.We also found that the required value of D1 to guarantee the connectivity of flow is little smaller than D0.For the transition from a surface flow to a dense flow,there is a jump of flow rate and the minimumθfor flowing is two degrees larger than the repose angle.
|
| 关 键 词： | hopper flow inserted bar flow type transition free surface velocity distribution |
Influence of an inserted bar on the flow regimes in the hopper |
| |
| Yi Peng,Sheng Zhang,Mengke Wang,Guanghui Yang,Jiangfeng Wan,Liangwen Chen,Lei Yang.Influence of an inserted bar on the flow regimes in the hopper[J].Chinese Physics B,2021(2). |
| |
| Authors: | Yi Peng Sheng Zhang Mengke Wang Guanghui Yang Jiangfeng Wan Liangwen Chen Lei Yang |
| |
| Affiliation: | (Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;University of Chinese Academy of Sciences,Beijing 100049,China;East China University of Technology,Nanchang 330000,China) |
| |
| Abstract: | |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
