中国物理B ›› 2019, Vol. 28 ›› Issue (1): 18104-018104.doi: 10.1088/1674-1056/28/1/018104

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Influence of wall friction on granular column

Yang-Yang Yang(杨阳阳), Sheng Zhang(张晟), Ping Lin(林平), Jiang-Feng Wan(万江锋), Lei Yang(杨磊), Shurong Ding(丁淑蓉)   

  1. 1 Institute of Mechanics and Computational Engineering, Department of Aeronautics and Astronautics, Fudan University, Shanghai 200433, China;
    2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • 收稿日期:2018-09-28 修回日期:2018-10-29 出版日期:2019-01-05 发布日期:2019-01-05
  • 通讯作者: Shurong Ding E-mail:dsr1971@163.com
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11705256, 11772095, and 11572091) and the National Key Research and Development Program of China (Grant No. 2016YFB0700103).

Influence of wall friction on granular column

Yang-Yang Yang(杨阳阳)1,2, Sheng Zhang(张晟)2, Ping Lin(林平)2, Jiang-Feng Wan(万江锋)2, Lei Yang(杨磊)2, Shurong Ding(丁淑蓉)1   

  1. 1 Institute of Mechanics and Computational Engineering, Department of Aeronautics and Astronautics, Fudan University, Shanghai 200433, China;
    2 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2018-09-28 Revised:2018-10-29 Online:2019-01-05 Published:2019-01-05
  • Contact: Shurong Ding E-mail:dsr1971@163.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11705256, 11772095, and 11572091) and the National Key Research and Development Program of China (Grant No. 2016YFB0700103).

摘要:

Granular packings under gravity in frictional and frictionless silos were simulated and the influence of the wall friction on the normal force distribution was investigated. Although there is an obvious Janssen effect in frictional silos, only a slight influence on the geometry of packing was found. The law of normal force distribution is different for frictional and frictionless walls, which is related to the pressure profile. A modified formula with consideration of the pressure profile was well fitted to the simulation results.

关键词: Janssen effect, force distribution, wall friction, packing configuration

Abstract:

Granular packings under gravity in frictional and frictionless silos were simulated and the influence of the wall friction on the normal force distribution was investigated. Although there is an obvious Janssen effect in frictional silos, only a slight influence on the geometry of packing was found. The law of normal force distribution is different for frictional and frictionless walls, which is related to the pressure profile. A modified formula with consideration of the pressure profile was well fitted to the simulation results.

Key words: Janssen effect, force distribution, wall friction, packing configuration

中图分类号:  (Porous materials; granular materials)

  • 81.05.Rm