在不同障碍物挡板阻隔条件下，就细水雾对油池火的灭火效果进行了实验研究，分析了不同空间位置的障碍物挡板对细水雾灭火效果的影响，采用FDS40对细水雾与不同类型障碍物挡板油池火的相互作用过程的模拟结果表明：障碍物结构与类型影响着细水雾直接作用于油池火上方的水雾通量，油池火上方的水雾卷吸量越大，细水雾对障碍火的灭火效果越明显。

The full scale simulation cabin and pumping pressure water mist system were employed to study the validity of the obstacle fires extinguishment by water mist on the conditions of different obstacles baffles. The validity of water mist system and main influencing factors on the extinguishment of the obstacle heptanes fires were analyzed. FDS (4.0.5) was employed to study the interaction of the water mist and obstacle oil fires and the extinguishing rules and factors were determined primarily. The experimental and simulation results show that the structure and style of the obstacle fires are important to influence the validity of the obstacle fires extinguishment by water mist. The more the water mist is entrained by the airflow, the more effective of the extinguishment by water mist.