[1]钟委,端木维可,李华琳,等.火源横向位置对隧道火灾烟气分岔流动影响[J].郑州大学学报(工学版),2017,38(01):27.[doi:10.13705/j.issn.1671-6833.2016.04.023]
　Zhong Committee,Duanmu Weike,Li Hualin,et al.Numerical Investigation on the Influence of Different Transverse Fire Locations on Smoke Bifurcation Flow in Tunnel Fire[J].Journal of Zhengzhou University (Engineering Science),2017,38(01):27.[doi:10.13705/j.issn.1671-6833.2016.04.023]
点击复制

火源横向位置对隧道火灾烟气分岔流动影响()
分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
38卷
期数:
2017年01期
页码:
27
栏目:
出版日期:
2017-02-24

文章信息/Info

Title:
Numerical Investigation on the Influence of Different Transverse Fire Locations on Smoke Bifurcation Flow in Tunnel Fire
作者:
钟委; 端木维可; 李华琳; 梁天水
1.郑州大学力学与工程科学学院,河南郑州450001;2.建筑安全与环境国家重点实验室,北京100013;3.郑州大学力学与工程科学学院,河南郑州,450001
Author(s):
Zhong Committee1; Duanmu Weike2; Li Hualin2; Liang Tianshui2
1. School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, Henan 450001 ;2. State Key Laboratory of Construction Safety and Environment, Beijing 100013
关键词:
Keywords:
DOI:
10.13705/j.issn.1671-6833.2016.04.023
文献标志码:
A
摘要:
当发生隧道火灾时,纵向通风方式常被用于人员疏散和排烟,而纵向风速较大时,烟气将发生分岔流动,导致烟气层整体性被破坏,对人员疏散造成威胁.火源横向位置对隧道火灾烟气流动有显著影响,通过数值模拟对不同火源横向位置时烟气分岔流动特性进行了研究.结果表明,随着火源向侧壁靠近,烟气由对称型分岔流动转变为不对称分岔流动.当火灾发生在侧壁附近时,烟气转变为“S”型流动.随着火源与侧壁间距的减小.分岔流动临界风速呈指数型增加.
Abstract:
When a fire occurd in tunnel,the longitudinal ventilation was used for personnel evacuation and smoke extraction.The stratification of smoke layer would be destroyed under high ventilation velocity,and would lead to smoke bifurcation flow,which was harmful to evacuation.The numerical simulations were conducted to investigate the influence of transverse fire locations on smoke bifurcation flow.The phenomena of smoke bifurcation flow with different transverse fire locations were studied.The results showed that the bifurcation flow was symmetric when fire located in the central line of tunnel;and a S-shaped flow occursed in a near wall fire situation.The critical velocity of smoke bifurcation flow increased exponentially when fire source moved to the sidewall.

相似文献/References:

[1]刘敏珊,许伟峰,靳遵龙.三角区漏流对螺旋折流板换热器综合性能的影响[J].郑州大学学报(工学版),2014,35(06):1.[doi:10.3969/ j. issn.1671 -6833.2014.06.001]
　LIU Min-shan,XU Wei-feng,JIN Zun-long,et al.Impact of Triangle Leakage on Comprehensive Performanceof Heat Exchangers with Helical Baffles[J].Journal of Zhengzhou University (Engineering Science),2014,35(01):1.[doi:10.3969/ j. issn.1671 -6833.2014.06.001]
[2]李胜利,胡亚楠,杜道倾,等.大跨径悬索桥施工猫道气动力系数数值分析[J].郑州大学学报(工学版),2015,36(04):57.[doi:10.3969/ j. issn.1671 -6833.2015.04.014]
　Ll Sheng-li,HU Ya-nan,DU Dao-qing,et al.Numerical Analysis of Aerodynamic Coefficients for Catwalk Considering ReynoldsNumber Effect on Long-span Suspension Bridge During the Construction[J].Journal of Zhengzhou University (Engineering Science),2015,36(01):57.[doi:10.3969/ j. issn.1671 -6833.2015.04.014]
[3]王磊,马建,杨志刚.基于壁面压力分布的消声器性能优化研究[J].郑州大学学报(工学版),2015,36(04):77.[doi:10.3969/j. issn.1671 -6833.2015.04.018]
　WANG Lei,MA Jiang,YANG Zhi-gang,et al.Study on Muffler Performance Optimization Based on Wall Pressure Distribution[J].Journal of Zhengzhou University (Engineering Science),2015,36(01):77.[doi:10.3969/j. issn.1671 -6833.2015.04.018]
[4]许伟峰,靳遵龙,王永庆,等.变角度连续螺旋折流板换热器优化结构的数值研究[J].郑州大学学报(工学版),2015,36(05):39.[doi:10.3969/ j. issn.1671 -6833.2015.05.009]
　LIU Min-shan,XU Wei-feng,WANG Yong-qing,et al.Numerical Study of Structure Optimization for Heat Exchanger with Variable Angle Helical Baffles[J].Journal of Zhengzhou University (Engineering Science),2015,36(01):39.[doi:10.3969/ j. issn.1671 -6833.2015.05.009]
[5]梅丽芳.激光焊接熔池特性的三维数值模拟[J].郑州大学学报(工学版),2015,36(06):85.[doi:10.3969/j.issn.1671 -6833.2015.06.017]
　MEI Lifang,CHEN Youhai,YAN Dongbing,et al.Three Dimensional Numerical Simulation of Characteristics of Laser Welding Pool[J].Journal of Zhengzhou University (Engineering Science),2015,36(01):85.[doi:10.3969/j.issn.1671 -6833.2015.06.017]
[6]马强,朱健,邢文文,等.具有硬壳层的涵洞地基极限承载力分析[J].郑州大学学报(工学版),2016,37(01):70.[doi:10.3969/j.issn.1671-6833.201504039]
　Ma Qiang,Zhu Jian,Xing Wenwen,et al.Analysis of Ultimate Bearing Capacity of Culvert Foundation with Crust Layer[J].Journal of Zhengzhou University (Engineering Science),2016,37(01):70.[doi:10.3969/j.issn.1671-6833.201504039]
[7]吴金星,王超,王明强,等.内置扭带管内湍流流动与传热数值模拟[J].郑州大学学报(工学版),2017,38(03):10.[doi:10.13705/j.issn.1671-6833.2016.06.018]
　Wu Jinxing,Wang Chao,Wang Mingqiang,et al.Numerical Simulation of Turbulent Fluid Flow and Heat Transfer in a Circular Tube with Twisted Tapes Inserts[J].Journal of Zhengzhou University (Engineering Science),2017,38(01):10.[doi:10.13705/j.issn.1671-6833.2016.06.018]
[8]周俊杰,王璞,周金方.基于ANSYS CFX的汽轮机叶片气动性能优化模拟研究[J].郑州大学学报(工学版),2017,38(04):1.[doi:10.13705/j.issn.1671-6833.2017.01.008]
　Zhou Junjie,Wang Pu,Zhou Jinfang.Study on Numerical Simulation of The Steam Turbine Blade Aerodynamic steam turbine increases.Performance Optimization Based on ANSYS CFX[J].Journal of Zhengzhou University (Engineering Science),2017,38(01):1.[doi:10.13705/j.issn.1671-6833.2017.01.008]
[9]窦明,曹亚新,米庆彬,等.地温空调井群运行对地下水影响的实验与模型研究[J].郑州大学学报(工学版),2017,38(05):76.[doi:10.13705/j.issn.1671-6833.2017.05.005]
　Dou Ming,Cao Yaxin,Mi Qingbin,et al.Groundwater Pumping-Recharging Influence Experiment and Numerical Simulation of Ground Temperature Air-conditioning Project in Fifth People’s Hospital, Anyang City[J].Journal of Zhengzhou University (Engineering Science),2017,38(01):76.[doi:10.13705/j.issn.1671-6833.2017.05.005]
[10]王为术,张雨飞,常娜娜.600MW火电机组间接空冷塔流动换热特性数值研究[J].郑州大学学报(工学版),2014,35(01):51.[doi:10.3969/j.issn.1671-6833.2014.01.012]
　WANG Weishu,ZHANG Yufei,CHANG Nana.Numerical Simulation on the Flow Field and Heat Transfer Characteristics of Indirect Air-cooling Tower in 600MW Supercritical Thermal Power Unit[J].Journal of Zhengzhou University (Engineering Science),2014,35(01):51.[doi:10.3969/j.issn.1671-6833.2014.01.012]

更新日期/Last Update: