中国物理B ›› 2020, Vol. 29 ›› Issue (5): 54502-054502.doi: 10.1088/1674-1056/ab8217

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Parametric study of the clustering transition in vibration driven granular gas system

Qi-Lin Wu(吴麒麟), Mei-Ying Hou(厚美瑛), Lei Yang(杨磊), Wei Wang(王伟), Guang-Hui Yang(杨光辉), Ke-Wei Tao(陶科伟), Liang-Wen Chen(陈良文), Sheng Zhang(张晟)   

  1. 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Key Laboratory of Soft Matter Physics, Beijing National Laboratory for Condense Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2020-02-13 出版日期:2020-05-05 发布日期:2020-05-05
  • 通讯作者: Sheng Zhang E-mail:zhangsheng@impcas.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. U1738120, 11474326, and 11705256), Young Scholar of CAS "Light of West China" Program for Guanghui Yang (Grant No. 2018-98), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDA21010202), and the International Cooperation Project of China Manned Space Program.

Parametric study of the clustering transition in vibration driven granular gas system

Qi-Lin Wu(吴麒麟)1,2, Mei-Ying Hou(厚美瑛)3, Lei Yang(杨磊)1, Wei Wang(王伟)1,2, Guang-Hui Yang(杨光辉)1, Ke-Wei Tao(陶科伟)1, Liang-Wen Chen(陈良文)1, Sheng Zhang(张晟)1   

  1. 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
    2 University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Key Laboratory of Soft Matter Physics, Beijing National Laboratory for Condense Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2020-02-13 Online:2020-05-05 Published:2020-05-05
  • Contact: Sheng Zhang E-mail:zhangsheng@impcas.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. U1738120, 11474326, and 11705256), Young Scholar of CAS "Light of West China" Program for Guanghui Yang (Grant No. 2018-98), the Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDA21010202), and the International Cooperation Project of China Manned Space Program.

摘要: A parametric study of the clustering transition of a vibration-driven granular gas system is performed by simulation. The parameters studied include the global volume fraction of the system, the size of the system, the friction coefficient, and the restitution coefficient among particles and among particle-walls. The periodic boundary and fixed boundary of sidewalls are also checked in the simulation. The simulation results provide us the necessary "heating" time for the system to reach steady state, and the friction term needed to be included in the "cooling" time. A gas-cluster phase diagram obtained through Kolmogorov-Smirnov (K-S) test analysis using similar experimental parameters is given. The influence of the parameters to the transition is then investigated in simulations. This simulation investigation helps us gain understanding which otherwise cannot be obtained by experiment alone, and makes suggestions on the determination of parameters to be chosen in experiments.

关键词: granular gas, clustering, phase diagram

Abstract: A parametric study of the clustering transition of a vibration-driven granular gas system is performed by simulation. The parameters studied include the global volume fraction of the system, the size of the system, the friction coefficient, and the restitution coefficient among particles and among particle-walls. The periodic boundary and fixed boundary of sidewalls are also checked in the simulation. The simulation results provide us the necessary "heating" time for the system to reach steady state, and the friction term needed to be included in the "cooling" time. A gas-cluster phase diagram obtained through Kolmogorov-Smirnov (K-S) test analysis using similar experimental parameters is given. The influence of the parameters to the transition is then investigated in simulations. This simulation investigation helps us gain understanding which otherwise cannot be obtained by experiment alone, and makes suggestions on the determination of parameters to be chosen in experiments.

Key words: granular gas, clustering, phase diagram

中图分类号:  (Granular systems)

  • 45.70.-n
45.70.Mg (Granular flow: mixing, segregation and stratification) 81.30.Dz (Phase diagrams of other materials)