期刊
INDOOR AIR
卷 22, 期 1, 页码 77-87出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1600-0668.2011.00741.x
关键词
Contaminant transports; Human walking; Door motion; Large-eddy simulation; Immersed boundary method
类别
资金
- DARPA/SPO
- ARPA, DARPA/CMO [V034/00, 4920, HR0011-05-C-0157]
- WCU (World Class University) through the National Research Foundation of Korea (NRF)
- Ministry of Education, Science, and Technology [R31-10049]
A large-eddy simulation is used to investigate contaminant transport owing to complex human and door motions and vent-system activity in room compartments where a contaminated and clean room are connected by a vestibule. Human and door motions are simulated with an immersed boundary procedure. We demonstrate the details of contaminant transport owing to human-and door-motion-induced wake development during a short-duration event involving the movement of a person (or persons) from a contaminated room, through a vestibule, into a clean room. Parametric studies that capture the effects of human walking pattern, door operation, over-pressure level, and vestibule size are systematically conducted. A faster walking speed results in less mass transport from the contaminated room into the clean room. The net effect of increasing the volume of the vestibule is to reduce the contaminant transport. The results show that swinging-door motion is the dominant transport mechanism and that human-induced wake motion enhances compartmentto- compartment transport.
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