Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Physical model and simulation system of powder packing

Zhong Wen-Zhen Zhou Zhao-Yao Xia Wei Li Yuan-Yuan He Ke-Jing

Physical model and simulation system of powder packing

Zhong Wen-Zhen, Zhou Zhao-Yao, Xia Wei, Li Yuan-Yuan, He Ke-Jing
PDF
Get Citation
Metrics
  • Abstract views:  3221
  • PDF Downloads:  1324
  • Cited By: 0
Publishing process
  • Received Date:  17 December 2008
  • Accepted Date:  23 April 2009
  • Published Online:  21 December 2009

Physical model and simulation system of powder packing

  • 1. (1)华南理工大学机械与汽车工程学院,广州 510641; (2)华南理工大学计算机科学与工程学院,广州 510641

Abstract: The physical model and the computational system for powder packing process simulation are presented, and the high performance computing methods of simulating the random packing of mixed particles with different sizes are studied. In the simulation system the effects of gravity, contact forces, damping, friction, van der Waals force etc are take into account, therby forming several kinds of mechanical models and damping models. The system is very suitable for the three\|dimensional simulation of large scale powder packing process. Finally, to demonstrate the usefulness of the simulation system, two typical applications are presented in the paper. One is to simulate the random packing of binary mixture with size ratio 10, and when the number of small particles is 300 times as large as that of big particles, the maximal packing density (volume fraction) is achieved to be 0.824, and the other is to simulate the random mixed packing dynamics of particles with two different densities. The segregation phenomenon and clustering phenomenon take place obviously after the packing process has come to an end. The physical model and the simulation system presented in this paper are not only suitable for the study of powder packing process, but also applicable to the packing process simulation of spherical objects.

Catalog

    /

    返回文章
    返回