Numerical Study and Validation of Granule Assembly Motion in a Planar Vibration Boz
The motion of particles in a vibration apparatus has been generally used in many industrial processes. To further understand its complex quasi-hydromechanical motion characteristics, simulations of 2D Discrete Element Method (DEM) and physical experiments under the same conditions were done to the particle motion in a rectangle vibration box. Emphasis was on loose motion state of particles and Expansion coefficient was defined to evaluate loose degree of particles. We also used a high-speed camera to have measured the expansion coefficient of particles in the vibrating box under different conditions. Results show that the motion states of particles from the high speed camera are basically in accordance with that from the simulation. Parameters used in calculation affect greatly the expansion coefficient from the simulation, and therefore by selecting proper parameters for calculation, the results from simulation could fit that from tests well. It indicates the Discrete Element Method, as a strong tool to study particles motion, can not only be qualitative reasonably but also achieve the goal in quantitative investigation.
Discrete Element Method particles motion vibration high-speed and dynamic loosene
Jiao Hongguang Li Sha Ma Jiao Huang Dingguo Zhao Yuemin
School of Material Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, Chi School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Ji
国际会议
沈阳
英文
68-74
2009-08-27（万方平台首次上网日期，不代表论文的发表时间）