纵向通风对长大隧道火灾烟流控制分析王婉娣.pdf

6 3 V o.l 6 N o. 3 2010 6 Journal of Sa fety Science and T echno logy June 2010 : 167 3- 193X 2010) - 0 3- 0028- 05 * 1 1 2 3 王婉娣 , 张靖岩 , 冯 炼 , 赵纯刚 1. , 1000 13) 2. , 6 100 31) 3. ) , 100068) : , CFD , , , , , , : ; ; ; ; : X 93 : A Three-dim ensional sim u lation analy sis of sm oke f low con trolled by longitud inal ventilation in long tunnel f ire 1 1 2 3 WANG W an-di , ZHANG Jing-yan , FENG L ian , ZHAO Chun-gang 1. Institute of Bu ilding F ire R esea rch, Ch ina A cadem y of Bu ilding R esearch, Be ij ing 1000 12, Ch ina) 2. School o f M echan ica l Eng. , Sou thw est J iaotong U n iversity, Chengdu 61003 1, Ch ina) 3. N o. 2 Construction Insta llation, Corporation of Ch ina Construction Th ird Eng inee ring Bureau Co. LTD, Beijing 10006 8, Ch ina) Abs tract: T o m eet the need o f research on fire safety system for the long h ighw ay tunne ls, the num erica l smi u lation study of the long itudina l vent ilat ion con tro l on f ire sm oke flow in the long highw ay tunnelw as presented in th is pa- per. Based on the calculated resu lt, the different e ffects on sm oke temperature under variou s ventilation contro ls w ere com pared. The velocity change of the a irflow passing through fire zone w as a lso ana lyzed. F rom the analysis, the distribution characters and developm ent o f sm oke in tunnel f ire w ere generalized, wh ich m ay prov ide the refer- ence background for fire prevent ion desi