宿州学院学报2024，Vol.39Issue(3)：51-56,6.DOI:10.3969/j.issn.1673-2006.2024.03.010
基于FDS的双洞单向隧道火灾温度变化及烟气扩散分析
On the Fire Temperature Variation and Flue Gas Diffusion in Two-hole One-way Tunnel Based on FDS
黄海涛 1余陶1
作者信息
- 1. 安徽建筑大学土木工程学院,安徽合肥,230601
- 折叠
摘要
Abstract
In order to deal with the occurrence of tunnel fire and avoid unnecessary casualties and property losses,it is of great research value to analyze the temperature change and the characteristics of flue gas diffusion in the tun-nel,and select the appropriate longitudinal wind speed and flue gas diffusion control scheme.Therefore,PyroSim software is used to establish a highway tunnel model for FDS numerical simulation.The fire with the maximum heat release power of 20 MW was simulated,and the critical wind speed of 3.5 m/s was determined by observing the counter-current length of the flue gas under three different longitudinal ventilation intensity.Under three different longitudinal winds,based on the change of temperature field in the tunnel during fire,the characteristics of flue gas diffusion,and the impact of personnel evacuation and fire rescue,it is very important to determine the proper longi-tudinal ventilation intensity of the main and auxiliary tunnels in order to prevent the flue gas from spreading to the auxiliary tunnels through the cross passage and affecting the evacuation of personnel in the simulation of tunnel flue gas control scheme.关键词
安全工程/双洞单向隧道/FDS/火灾通风/烟气蔓延Key words
Safety engineering/Two-hole one-way tunnel/FDS/Fire ventilation/Flue gas diffusion分类
交通工程引用本文复制引用
黄海涛,余陶..基于FDS的双洞单向隧道火灾温度变化及烟气扩散分析[J].宿州学院学报,2024,39(3):51-56,6.
