Simulation of high velocity compaction of powder in a two dimension mould using lattice Boltzmann method  

作　　者：Qiaojie LI Zhoushun ZHENG Xuanhui QU 

机构地区：[1]School of Mathematical Science and Computing Technology, Central South University, Changsha 410083,China [2]School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing100083, China

出　　处：《Acta Metallurgica Sinica(English Letters)》2012年第1期47-54,共8页金属学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos. 50874123 and 51174236);National Basic Research Program of China(No. 2011CB606306)

摘　　要：This work presents a numerical study on the dynamic high velocity compaction of the metal powder. The analysis of the process is based on a mesoscopic approach using multi-speed lattice Boltzmann method. The boundary condition and the relaxation time are tailored to the situation. The dynamic compaction process is vividly presented and the shock wave can be easily found in the simulation. The density is analyzed in order to explore the mechanism of the high velocity compaction.This work presents a numerical study on the dynamic high velocity compaction of the metal powder. The analysis of the process is based on a mesoscopic approach using multi-speed lattice Boltzmann method. The boundary condition and the relaxation time are tailored to the situation. The dynamic compaction process is vividly presented and the shock wave can be easily found in the simulation. The density is analyzed in order to explore the mechanism of the high velocity compaction.

关 键 词：High velocity compaction Lattice Boltzmann method SHOCKWAVE Relaxation time function 

分 类 号：TF124.3[冶金工程—粉末冶金] U491.112[冶金工程—冶金物理化学]