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Application of 2DMD to gaseous microflows 被引量:2
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作者 CAOBingyang CHENMin GUOZengyuan 《Chinese Science Bulletin》 SCIE EI CAS 2004年第11期1101-1105,共5页
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, an... 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. 展开更多
关键词 二维分子动力模拟 气态微流 麦克斯韦类边界条件 微尺度流 稀薄作用 液体流
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Diffusion in Two-dimensional Magnetized Dusty Plasmas 被引量:2
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作者 孔伟 杨芳 《Communications in Theoretical Physics》 SCIE CAS CSCD 2013年第9期348-352,共5页
A molecular dynamical simulation method is used to investigate the diffusion of the two-dimensional magnetized dusty plasmas. The effects of charge and mass of the particles, as well as the external magnetic field are... A molecular dynamical simulation method is used to investigate the diffusion of the two-dimensional magnetized dusty plasmas. The effects of charge and mass of the particles, as well as the external magnetic field are discussed in detail It is shown that, relative to the mass of particulate, the charge and magnetic field have a more considerable effect on the diffusion process, particularly on the resulting structure of the system. The dependence of diffusion coecient on the temperature is shown to be linearly changed over a wide range of temperature. 展开更多
关键词 DIFFUSION TEMPERATURE external magnetic field
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