微纳米尺度流场滑移-过渡流区流动和传热特性的研究(林建忠; 包福兵)

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纳米尺度流场滑移-过渡流区流动和传热特性研究水利论文"g9X6Vt4A5P vf

ro{8YD,A[0【作者】林建忠; 包福兵 【作者单位】中国计量学院; 浙江大学流体工程研究所水利论文/HL nc%j

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【论文摘要】 Burnett 方程在微纳米尺度通道气体流动中的应用是微纳通道流体力学研究的一个重要方面,论文从 Burnett 方程的稳定性以及在计算中如何增加计算的稳定性、Burnett 方程在微纳米尺度平板 Couette 流和 Poiseuille 流气动和传热特性等几个方面,介绍了近期的主要研究进展.主要研究结果表明,在微纳米尺度气体流动中,Burnett 方程比 N-S 方程能更好地描述流体运动,且比直接模拟蒙特卡罗方法具有更高的计算效率。

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gRSW-o7W p0【英文论文摘要】 The application of Burnett equantion on the micro-and nanoscale gas flow is an important aspect of the research of the micro-and nano-fluid dynamics.In this paper,we will attempt to provide a brief overview on our recent work,including the stability of Bumett equations and how to improve the computational stability,simulation of Couette flow by Burnett equations, gas flow and heat transfer characteristics in Pouseuille flow using Burnett equations.We find that,in micro-and nanoscale gas flows,the Burnett equations can improve the results of Navier-Stokes equations.On the other hand,the computation efficiency of continuum based Burnett equations is much better than that based on the DSMC method.水利论文9PAu5v%j P3C

_n(cH*du0【论文关键词】 微纳米尺度流动; 滑移-过渡流区; Burnett 方程; 数值模拟方法
$I9Os Du [q0【英文论文关键词】 micro-and nanoscale gas flow; slip-transition flow regime; Burnett equations; numerical simulation水利论文 ]`7PrDs?
【基金】国家自然科学基金重点项目(10632070)资助.
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TAG: 流场 特性 纳米 林建忠 过渡流
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