【摘要】 针对比重大于空气的液化石油气,在一侧开有通风窗口的模拟室内空间泄漏后的浓度场变化规律,进行了实验研究。研究结果表明:在不同的高度上,燃料浓度随着时间的变化,先有一个迟滞期,然后浓度迅速升高。高度越高,其迟滞期越长。除燃料泄漏口附近的射流进口区域外,模型空间中的等高面可以近似的看作等浓度面。在泄漏过程中,可燃区域是一个有一定厚度的水平区域更多还原

【Abstract】 Experiment and research for change rule of thickness field after leaking simulation indoor space with a ventilation window in one side have been done,aiming to the liquid petroleum gas which thickness is heavier than air in this text.The result of study shows:On different height, fuel density with change of time,have a sluggishness at first, then the density rises rapidly. The higher the height is,the longer its sluggish one is.Except that the fuel lets out the efflux near the mouth to import in the area,model waiting for high piece can regarding as etc.The density approximate in the space.In the course of leaking,the flammable area is a horizontal area with certain thickness.更多还原