五段式水基生長(zhǎng)管流場(chǎng)數(shù)值仿真與分析

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中圖分類號(hào)：O351.2；TP391.99 文獻(xiàn)標(biāo)志碼：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

氣溶膠粒子濃度是決定氣候變化、空氣質(zhì)量等的重要因素，凝結(jié)核粒子計(jì)數(shù)器（condensationparticlecounter，CPC）用于檢測(cè)大氣內(nèi)氣溶膠粒子濃度。（剩余9528字）