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[1]常玉锋,陈锋,贾沛,等.排烟方式对火场人员疏散影响的数值模拟[J].武汉工程大学学报,2010,(09):46-49.[doi:10.3969/j.issn.16742869.2010.09.013]
　CHANG Yu feng,CHEN Feng,JIA Pei,et al.Numerical simulation of the influences of smoke extraction on evacuation[J].Journal of Wuhan Institute of Technology,2010,(09):46-49.[doi:10.3969/j.issn.16742869.2010.09.013]
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排烟方式对火场人员疏散影响的数值模拟(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2010年09期
页码:
46-49
栏目:
资源与土木工程
出版日期:
2010-09-30

文章信息/Info

Title:
Numerical simulation of the influences of smoke
extraction on evacuation
文章编号:
16742869(2010)09004604
作者:
常玉锋1; 陈锋2; 贾沛1; 张焱3
1.武汉工程大学环境与城市建设学院,湖北 武汉 430074;
2.北京保利达工程设计有限责任公司杭州分公司,浙江 杭州 310003;
3.中南大学土木建筑学院,湖南 长沙 410075
Author(s):
CHANG Yufeng1; CHEN Feng2; JIA Pei1; ZHANG Yan3
1.School of Environment and Civil Engineering, Wuhan Institute of Technology, Wuhan 430074,China;
2.Beijing Baolida Engineering Design Co Ltd. Hangzhou Company, Hangzhou 310003,China;
3.School of Civil Engineering and Architecture, Central South University, Changsha 410075,Chin
关键词:
火灾; 烟气; 场模拟
Keywords:
fire;  smoke;  field simulation
分类号:
X932;Tu834
DOI:
10.3969/j.issn.16742869.2010.09.013
文献标志码:
A
摘要:
针对建筑火灾中烟气的危害特点,利用商业计算流体软件PHOENICS,分别对无排烟措施、自然排烟、机械排烟等三种常见的建筑火灾后的排烟方式进行烟气流动规律的模拟研究.得出:火灾后,自然排烟和机械排烟在一定程度上都能将着火房间的烟气、热量排出室外,降低着火房间的烟气浓度、温度和压力.机械排烟形成的微负压使得火场烟气不易向外扩散,同时增加近30s的疏散时间,排烟效果明显更利于火场人员的安全疏散.本文计算机场模拟的结果符合单室烟气的蔓延机理,证明了使用计算流体力学技术对火灾现象进行数值模拟是可行的,可用于指导建筑火灾的扑救和火场人员的安全疏散.
Abstract:
Due to the hazard of the smoke in a building fire, numerical simulations of the smoke movements in three different ventilation working conditions, which include no extraction, natural smoke extraction and mechanical smoke extraction, are achieved by using the commercial computational fluid software PHOENICS. In a fire, both natural smoke extraction system and mechanical smoke extraction system can expel lots of the smoke and the heat from the room, which reduces the concentration of the smoke, the temperature and the pressure. The mechanical smoke extraction system can produce trace negative pressure, which makes smoke diffusion outside difficult, which has good effect on smoke extraction obviously and adds nearly 30 s for evacuation. The results of the study prove the feasibility of field simulation based on the CFD technology during a fire,and confirm the mechanisms of the smoke movements of the fire process in a separate room. It has important theory value and reality significance to fire control and evacuation during a fire.

参考文献/References:

［1］赵国凌.防排烟工程［M］.天津:天津科技翻译出版公司,1991:300320.
［2］徐志胜,常玉锋,白国强,等.高层建筑防排烟的研究［J］.西部探矿工程,2003,15(12):179181.
［3］常玉锋.建筑火灾烟气流动规律的模拟研究［D］.长沙:中南大学,2004.
［4］常玉锋,白国强,胡文军,等.空调系统运行方式对单室火灾发展的影响［J］.武汉化工学院学报,2005,27(4):2326.
［5］彭磊,张健,张鹏.通风控制下建筑物通道内火灾烟气运动的数值模拟［J］.科学技术与工程,2006(21):34133417.
［6］陈海华,周汝,陈忠信.高层建筑烟气扩散计算机模拟的进展［J］.消防技术与产品信息,2007(1):2123.

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备注/Memo

备注/Memo:
龚晓宁收稿日期:20100109作者简介:常玉锋(1979),男,河南邓州人,讲师,硕士.研究方向:消防工程,安全评价.
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