摘要
采用流体力学模拟的方法。对半横向通风方式下公路隧道的火灾工况进行了数值模拟计算。通过对不同吊顶风口距离和开启个数的通风方案下的速度场和温度场分析。评估了各通风方案所能达到的效果。比较各通风方案的数据，进一步得到设计采用15m的吊顶风口距离，开启4～5个风口并配以3m／s的纵向通风能取得满意的效果。
Computer Fluid Dynamics （ CFD ） is employed to simulate the Highway tunnel fire under the semi - transverse ventilation. According to the velocity field analysis and temperature field with different ceiling tuyere distances and opening tuyere numbers, the effects of these different schemes are evaluated. Comparing these schemes,it is shown that 15 meters ceiling tuyere distance and 4 ～ 5 opening tuyeres ventilation scheme with 3m/s longitudinal ventilation velocity can give satisfactory effect.
出处
《地下空间与工程学报》
CSCD
2008年第1期195-198,共4页
Chinese Journal of Underground Space and Engineering
关键词
火灾
越江隧道
半横向通风
计算流体力学
fire
cross-river tunnel
semi-transverse ventilation
Computer Fluid Dynamics
