Computational Fluid Dynamics Simulation of the Progress of Fire Smoke in Large Space, Building Atria
學年 92
學期 1
出版(發表)日期 2003-09-01
作品名稱 Computational Fluid Dynamics Simulation of the Progress of Fire Smoke in Large Space, Building Atria
著者 張正興; Chang, Cheng-hsin; David Banks; Robert N. Meroney
單位 淡江大學土木工程學系
出版者 淡江大學
著錄名稱、卷期、頁數 淡江理工學刊=Tamkang journal of science and engineering 6(3), pp.151-157
摘要 Conventional fire and smoke control systems use pressure differences across small openings and cracks in physical barriers as a means to restrict smoke propagation from one space to another and water-spray curtains to diminish or eliminate fire and smoke. Most fire codes of Unite State of American depend upon the National Fire Protection Association (NFPA), guidebooks [1,2]. In turn these propose the use of simple zone models that solve conservation of mass and energy in a control-volume sense for each zone. One weakness of zone modeling is that momentum conservation is only captured through use of loss coefficient at openings. The strength of zone models is that they are very fast compared with computational fluid mechanics (CFD) based models. Atria, covered shopping malls, convention centers, airport terminals, sport arenas, and warehouses are examples of large spaces for which these conventional zone-model approaches are not always effective [3]. CFD, sometimes called “field-modeling” in the fire community to distinguish it form zone-modeling, has an unparalleled potential as an engineering estimator of fire consequence in atria since it permits specification of momentum conservation as well as much finer spatial and temporal resolution of the fire physics [4]. In addition CFD approaches provide a link between outside building weather conditions and fire and smoke development. This paper will discuss the results of calculations for an example building atrium based on zone (ASMET [5]) and field (FLUENT [6] and FDS [7,8] CFD)-based models.
關鍵字 Computational Fluid Dynamics;Fire Smoke Control;Building Atria
語言 en
ISSN 1560-6686
期刊性質 國內
國別 TWN
出版型式 ,電子版

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