A THEORETICAL-STUDY OF THE COUNTERFLOW VIRTUAL IMPACTOR

被引：13

作者：

LIN, H ^{[1
]}

HEINTZENBERG, J ^{[1
]}

机构：

[1] INST TROPOSPHER RES,D-04303 LEIPZIG,GERMANY

来源：

JOURNAL OF AEROSOL SCIENCE | 1995年 / 26卷 / 06期

关键词：

D O I：

10.1016/0021-8502(95)00024-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The counterflow virtual impactor (CVI) samples droplets larger than a certain size by inertially separating them from the surrounding air and small aerosol particles. Previous studies of this instrument were of an experimental character. Here we present a mathematical model of the CVI. The flow field is simulated by a three-dimensional axis-symmetrical potential dow model. The particle trajectories and the CVI collection efficiency are calculated. Finally, the model is applied to a calibrated CVI (Anderson et al., 1993, Aerosol Sci. Technol. 19, 317-329). The modelling results are in good agreement with the experimental data.

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页码：903 / 914

页数：12

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