Numerical simulation of aerosol concentration at atmospheric pressure by a cascade of aerodynamic slit lenses
Numerical simulation of aerosol concentration at atmospheric pressure by a cascade of aerodynamic slit lenses
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DOI：
10.1016/s0021-8502(02)00109-x
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发表时间：
2002-11-01
影响因子：
4.5
通讯作者：
Goo, J
中科院分区：
文献类型：
--
作者：
Goo, J
在空气动力透镜级联的基础上，提出了空气动力粒子集中器的概念。通过数值仿真分析了系统的性能。流场采用欧拉网格系统求解，粒子轨迹采用拉格朗日法计算。仿真结果表明，在常压下，该系统可将小至0.3 μ m的多分散亚微米颗粒进行浓缩，浓度因子接近100。(C) 2002 Elsevier Science Ltd.版权所有。
The concept of an aerodynamic particle concentrator is presented on the basis of a cascade of aerodynamic lenses followed by a virtual impactor. The performance of the system was analyzed by numerical simulation. Flow fields were solved in an Eulerian grid system, and particle trajectories were calculated by the Lagrangian method. It is shown by the simulation that the system concentrates poly-disperse sub-micron particles as small as similar to0.3 mum and achieves concentration factors of similar to100 at atmospheric pressure. (C) 2002 Elsevier Science Ltd. All rights reserved.