THE SELF-DIFFUSION MODEL OF SUPERCRITICAL FLUID

摘要：

　　The self-diffusion model of supercritical fluids is simulated by constant volume-temperature molecular dynamics.The range of reduced volume is from 1.0607 to 1.95, and the reduced temperature is from 1.0 to 10.0 in the simulation.A modified activated state model for self-diffusion coefficient is proposed in the present work based on the kinetic theory, and its availability is proved by the MD data.By the best fitting of the model with the simulated data, the final expression is obtained.Compared the model results with the Zabaloy model for fluid at high pressure range, the absolute deviation is less than 10%.

关键词： self-diffusion model supercritical fluid modified activated state model molecular dynamics

作者: Bo Zhao

作者单位: China Academy of Aerospace Aerodynamics Beijing, 100074, China

会议类型: 国际会议

会议名称: The 11th International Heat Pipe Symposium(第十一届国际热管研讨会)

会议地点: 北京

会议语种:英文

页码: 251-256

在线出版日期: 2013-06-09（万方平台首次上网日期，不代表论文的发表时间）