五段式水基生长管流场数值仿真与分析

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中图分类号：O351.2；TP391.99 文献标志码：B

Numerical simulation and analysis of flow field of five-stage water-based growth tube

WANG Zhenqiang ， ZHANG Mingshun ， LUO Junwen MAN Xiaohong ，WU Bo

（1.College of Optoelectronic Engineering，Chengdu Universityof Information Technology，Chengdu 610225，China； 2.China Meteorological Administration-Chengdu Universityof Information Technology Joint Research Center for Weather Modification，Chengdu 610225，China）

Abstract：To provide data support for the development of water-based condensation particle counters （WCPC），a five-stage water-based growth tube computational domain structure is proposed，which consistsof a condition chamber，a growth chamber，a moderation chamber，and two insulation chambers. Using Ansys FLUENT simulation software to establish model， important flow field parameters related to particle growth in a water-based growth tube by controlling variables are obtained. Compared with the internalflow field values of other water-based growth tubes，it is demonstrated that the five-stage waterbased growth tube has superiority in creating a favorable particle growth environment.

Key words： condensation particle counter（CPC ）；water-based growth tube；saturation；critical diameter；wall temperature ；FLUENT

0引言

气溶胶粒子浓度是决定气候变化、空气质量等的重要因素，凝结核粒子计数器（condensationparticlecounter，CPC）用于检测大气内气溶胶粒子浓度。（剩余9528字）