Segregation Diagram of a Mixture of Particles with Different Sizes and Densities
Segregation in granular materials has been studied by means of Monte Carlo simulation. The mechanism of segregation in a binary mixture of particles with different sizes and densities has been investigated for shaking and rotating processes in two-dimensional space. From the simulations we have obtained the segregation diagrams for shaking and rotating. These diagrams show what type of segregation occurs in a binary mixture with given values of the size ratio and the density ratio. From the diagrams we can also know what conditions are required to avoid segregation and mix uniformly a mixture of particles with different sizes and densities by the shaking and fast rotating processes. It is also shown that in the shaking process there is a critical size-ratio above which large-sized particles always segregate upward irrespective of the density ratio. Some implications of the segregation diagrams for shaking and rotating obtained by our simulations are discussed with consideration for real granular materials.
Granular Materials Simulation Size Segregation Density Segregation Mixing.
Shuji Shimamura Takanori Takahira Shota Suga Hajime Tamura Yasuhiro Senda
Department of Applied Science, Faculty of Engineering, Yamaguchi University, JapanTokiwadai 2-16-1, Ube, Yamaguchi, 755-8611 Japan
国际会议
上海
英文
155-159
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）