Numerical prediction of indoor airborne particle concentration in a test chamber with drift-flux model  

作　　者：Hanhui Jin Yong Chen Qinping Li Jianren Fan Kun Luo 

机构地区：[1]School of Aeronautics and Astronautics, Zheiiang University, Hangzhou 310027, China [2]State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China

出　　处：《Journal of Thermal Science》2011年第2期161-166,共6页热科学学报（英文版）

基　　金：the financial support of National Natural Science Foundation of China (NSFC,No: 10502044, 10772162);the major projects on control and rectification of water body pollution (No. 2009ZX07424-001) ;the Natural Science Foundationof Zhejiang Province (ZJNSF, No: Z107332)

摘　　要：The time-dependent variation of airborne particle concentration for different sizes in a test chamber was numerically predicted with drift-flux model. The performance of the drift-flux model for particle transport in different kinds of airflow fields was analyzed. The results show the drift-flux model can predict the transport of indoor fine particles reasonably well. When the air flow field varies slowly, the model can predict both the time-dependent variation ratio of the particle concentration and final stable concentration very well, and the difference for particles with different sizes can be also well predicted. When the air flow varies drastically, the accuracy of the model is decreased due to the neglect of the particles’ independent convective terms in the air flow.

关 键 词：airborne particle drift-flux model indoor environment 

分 类 号：P456.7[天文地球—大气科学及气象学] TQ021.1[化学工程]