Nonlinear dynamic analysis of natural ventilation in a two-zone building: Part A - Theoretical analysis

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	Nonlinear dynamic analysis of natural ventilation in a two-zone building: Part A - Theoretical analysis
	Yang, LN ; Xu, PC; Li, YG
	2006-04-01
发表期刊	HVAC&R RESEARCH
ISSN	1078-9669
卷号	12 期号:2 页码:231-255
摘要	The nonlinear behavior and solution multiplicity of airflow and natural ventilation in multi-zone buildings are significant for building ventilation and smoke control design. A two-zone building with four openings is considered in this study. Nonlinear dynamic behaviors are analyzed, and we report on the fixed points (steady-state solutions) and their stability and provide a description of the bifurcation of the fixed points and an estimation of the separating curve between two stable fixed points. Different flow modes were identified with the same physical and boundary conditions. A multi-zone airflow and thermal coupled program was also used to evaluate the results. There was good agreement between the numerical and theoretical solutions, except that the unsteady-state solutions could not be predicted by the multi-zone program. These results may have significant implications for multi-zone modeling, of natural ventilation and smoke or contaminant spread in buildings, as well as allow its to gain a good understanding of physical flow behavior and solution multiplicity.
语种	英语
WOS研究方向	Thermodynamics ; Construction & Building Technology ; Engineering
WOS类目	Thermodynamics ; Construction & Building Technology ; Engineering, Mechanical
WOS记录号	WOS:000236868200004
出版者	AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC,
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/2438
专题	应用数学研究所
通讯作者	Yang, LN
作者单位	1.Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Appl Math, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yang, LN,Xu, PC,Li, YG. Nonlinear dynamic analysis of natural ventilation in a two-zone building: Part A - Theoretical analysis[J]. HVAC&R RESEARCH,2006,12(2):231-255.
APA	Yang, LN,Xu, PC,&Li, YG.(2006).Nonlinear dynamic analysis of natural ventilation in a two-zone building: Part A - Theoretical analysis.HVAC&R RESEARCH,12(2),231-255.
MLA	Yang, LN,et al."Nonlinear dynamic analysis of natural ventilation in a two-zone building: Part A - Theoretical analysis".HVAC&R RESEARCH 12.2(2006):231-255.