| 低Peclet数下剪切流中气溶胶粒子的传质率 |
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| 引用本文： | 温景嵩,曾庆存,王永光.低Peclet数下剪切流中气溶胶粒子的传质率[J].大气科学,1994,18(1):105-112. |
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| 作者姓名： | 温景嵩 曾庆存 王永光 |
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| 作者单位： | 1.南开大学物理系,天津 300071 |
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| 基金项目： | 国家自然科学基金与LASG共同资助项目 |
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| 摘 要： | 本文研究了低Péclet数下剪切流中气溶胶粒子的传质率。Péclet数(Pe)是物质浓度的对流输送项对分子扩散项的比。它等于Reynolds数(Re)与Schmidt数的(Sc)之积。本文应用奇异扰动方法得到了无因次传质率Nu(Nusselt数)在小Péclet数条件下的四项渐近展式，因而?改进了前人的结果。
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| 关 键 词： | 传质率 蒸发与凝结 气溶胶力学 |
Mass Transfer from An Aerosol Particle Suspended in A Simple Shear Flow of Small Péclet Number |
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| Wen Jingsong,Zeng Qingcun and Wang Yongguang.Mass Transfer from An Aerosol Particle Suspended in A Simple Shear Flow of Small Péclet Number[J].Chinese Journal of Atmospheric Sciences,1994,18(1):105-112. |
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| Authors: | Wen Jingsong Zeng Qingcun and Wang Yongguang |
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| Abstract: | This paper deals with the rate of mass transfer from an aerosol particle Suspended in a simple shearflow of small Peclet number, which provides a measure of the ratio of the convection to diffusion and isequal to the product of the Reynolds number and the Schmidt number.In particular a fourterm expan-sion for the dimensionless mass transfer rate is developed by making use of a singular perturbationmethod. |
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| Keywords: | mass transfer rate evaporation and condensation aerosol kinetics |
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