%0 Journal Article
%T Application of 2DMD to gaseous microflows
%A Bingyang Cao
%A Min Chen
%A Zengyuan Guo
%A <br>CAOBingyang
%A CHENMin
%A GUOZengyuan
%J 科学通报(英文版)
%D 2004
%I 
%X A two-dimensional molecular dynamics (2DMD) simulation is applied to gaseous microflows. Based on a velocity distribution function in equilibrium, the mean molecular speed, mean collision frequency, mean free path, and the dynamical viscosity are deduced theoretically. A Maxwell-type-like boundary condition for two-dimensional (2D) systems, which reveals a linear relationship between the slip length and the mean free path, is also derived. These expressions are consequently employed to investigate the rarefied gas flow in a submicron channel. The results show reasonable agreements with those by 3D simulations, and indicate that the 2DMD scheme can be very promising for the microflow researches because of its high efficiency in computation.
%K molecular dynamics
%K 2D system
%K microscale flow
%K rare-faction effect<br>二维分子动力模拟
%K 气态微流
%K 麦克斯韦类边界条件
%K 微尺度流
%K 稀薄作用
%K 液体流
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=595ED388D80AE7E9CBA91EA9B46A2688&yid=D0E58B75BFD8E51C&vid=2A3781E88AB1776F&iid=708DD6B15D2464E8&sid=C17A97755771D03C&eid=9236E752FE2887AD&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=13