摘要
应用自行研制的“多坡段固相材料火蔓延实验台”，模拟森林地表火的蔓延过程，对变坡度情况下森林地表上坡火行为规律进行了实验研究。研究发现，上坡火火焰随坡度的变化有三种火焰类型，即小坡度的缓慢燃烧、随坡度增加的火焰的抖动以及大坡度时的贴壁剧烈燃烧。这三种燃烧方式之间的过渡，正是变坡度情况下火行为发生突变的地方。本文对突变情况下的数据进行处理和分析，得到了变坡度情况下火行为的初步规律。
In this paper, a solid phase material fire experimental bed, which has more slope segments, has been used to simulate upslope forest surface fire. It was found that there are three kinds of fire style corresponding different slope: Upon small slope, combustion is slow; on middle slope, flame will flicker; flame becomes very close to ground when slope is high. And fire behaviors are discontinuituy at the point where slope is changing. Based on the experimental data, an elementary law of fire behaviors upon changing slope has been achieved.
出处
《火灾科学》
CSCD
1999年第2期63-71,共9页
Fire Safety Science
基金
高校博士点基金
