This paper explored the influence of different fire source locations on the severity of fire in deep well vertical space,and constructed a deep well vertical space model.Through numerical simulation,the heat release rate of the fire source and the distance between the fire source and the wall on the smoke flow,smoke temperature,and velocity in deep well vertical spaces were analyzed.The results indicated that in vertical deep well spaces,the fire plume flow is easily restricted by walls.When the fire source approaches a single wall,the flame plume will tilt towards the near wall surface.Under the same time con-ditions,the closer the fire source is to a single wall,the higher the height and temperature of the smoke directly above the fire source,and the faster the upward flow speed of the smoke.Based on the simulation results,a formula is used to fit the relation-ship between plume temperature and depth,as well as the distance between the fire source and the wall.
关键词
深井立式空间/近壁火灾/火羽流/火灾烟气流动/数值模拟
Key words
deep vertical space/wall-attached fire/fire plume/fire smoke flow/numerical simulation
维普
万方数据