A two-dimensional molecular dynamics simulation of liquid-vapor nucleation  

作　　者：WANG Jinzhao, CHEN Min & GUO Zengyuan Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China 

出　　处：《Chinese Science Bulletin》2003年第7期623-626,共4页

基　　金：supported by the National Natural Science Foundation of China(Grant No.50106004);the Fundamental Research Foundations of Tsinghua University and the School of Mechenical Engineering in Tsinghua University.

摘　　要：The molecular dynamics method is employed to simulate the liquid-vapor nucleation processes. The results show that the initial stage of nucleus in nucleation process is cavity or space containing very few vapor molecules. Because of the very limited size of the simulation domain in previous reports, further growth of the nucleus has not been realized. Large scale molecular dynamics simulation of liquid-vapor nucleation indicates that the liquid-vapor nucleation process undergoes at least three stages: cavity growth, cavity coales-cence, bubble formation.The molecular dynamics method is employed to simulate the liquid-vapor nucleation processes. The results show that the initial stage of nucleus in nucleation process is cavity or space containing very few vapor molecules. Because of the very limited size of the simulation domain in previous reports, further growth of the nucleus has not been realized. Large scale molecular dynamics simulation of liquid-vapor nucleation indicates that the liquid-vapor nucleation process undergoes at least three stages: cavity growth, cavity coales-cence, bubble formation.

关 键 词：二维分子动力学仿真 液-汽成核现象 晶核 空穴合并 

分 类 号：O552.6[理学—热学与物质分子运动论]