QQ客服 官方微博 反馈留言

	Numerical study of particle deposition in two differently ventilated rooms
	Zhao, B ; Li, XT ; Zhang, Z
	2010-05-11 ; 2010-05-11
关键词	numerical simulation aerosol particle deposition ventilation AIR-FLOW SIMULATION AIRBORNE PARTICLES INDOOR PARTICLES MODEL SURFACES CHAMBER SYSTEM Construction & Building Technology Engineering, Environmental Public, Environmental & Occupational Health
中文摘要	A three-dimensional drift-flux model combined with deposition boundary conditions for the wall surfaces is presented to study particle deposition in a room ventilated either by displacement or mixing. The deposition boundary conditions were developed based on the work by Lai and Nazaroff. The turbulence effects of the indoor airflow were modelled with a zero-equation turbulence model by Chen and Xu. Several particle sizes, 1, 2.5, 5, 7.5, 10 micron, were investigated. The results showed that the deposited particle mass flux at vertical walls and floor were very different in the two differently ventilated rooms, even though the mean particle deposition velocities and mean deposition rate were almost the same for a certain size of particles. The deposited particle mass in rooms ventilated by mixing was larger than that in the room with displacement ventilation. The calculated mean deposition velocities and mean deposition rate of some sizes of particles agree with the measured data reported in the literature, while the results of small size (1 mum) and large size (10mum) particles have obvious discrepancies.
语种	英语 ; 英语
出版者	SAGE PUBLICATIONS LTD ; LONDON ; 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25990]
专题	清华大学
推荐引用方式 GB/T 7714	Zhao, B,Li, XT,Zhang, Z. Numerical study of particle deposition in two differently ventilated rooms[J],2010, 2010.
APA	Zhao, B,Li, XT,&Zhang, Z.(2010).Numerical study of particle deposition in two differently ventilated rooms..
MLA	Zhao, B,et al."Numerical study of particle deposition in two differently ventilated rooms".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。