摘要
搭建坡度隧道火灾缩尺寸试验台,试验研究不同风速、不同坡度下烟气在隧道中的蔓延规律,并与Fluent数值模拟结果进行对比。结果表明,在自然通风状态下,热烟气的蔓延速度将随隧道坡度增大而加快;机械通风状态下,火源附近温度较自然通风工况高,远离火源区域的顶部较自然通风工况低;Fluent的数值模拟结果与试验结果大致相同,证明了数值模拟结果的有效性。
A small scale experimental platform for sloping tunnel fire was built. The smoke spreading in tunnel under different wind velocity and slope was studied, and compared with the simulation result of Fluent. Results showed that, under the natural ventilation, the spreading velocity of hot smoke increases with the slope increasing; under the mechanical ventilation, the temperature near the fire source is higher than that of natural ventilation, and the temperature on the top far from the fire source is lower; the simulation results was mostly the same with Fluent, which proved the validity of mathematical simula- tion.
出处
《消防科学与技术》
CAS
北大核心
2016年第12期1677-1679,共3页
Fire Science and Technology
基金
国家自然科学基金项目(51278018)
高等学校博士学科点专项科研基金项目(20121103110024)
2016中国消防协会科学技术年会"青年消防学者论坛"交流论文
