摘要
针对消防灭火过程中雾状水滴喷射位置对灭火效率的影响问题,基于火灾动力学理论,分析灭火过程中的传热传质过程,构建了消防人员灭火过程的模拟环境和仿真模型,根据人员灭火过程中可能采取的灭火动作,运用火灾动力学软件对15种典型行为状态下灭火过程进行数值仿真,绘制针对具体火源的灭火动作与灭火效率关系图谱,并结合消防人员实际灭火训练数据分析水枪位置、入射角度、入射高度以及火源位置等因素耦合作用对灭火效率的影响,给出验证消防人员灭火行为和灭火战术有效性的仿真计算方法。
For the problem of the extinguishing efficiency for the location of the water droplets spraying mist during the course of firefighting, based on the fire dynamics theory, the heat and mass transfer processes during extinguishing process was ana- lyzed, the fire extinguishing process simulation environment and the simulation model was established. Based on the possible action of firefighter during the firefighting, a series of numerical simulations of the fire suppression process for 15 kinds of typi- cal personnel behavior were carried out by the fire dynamics software. The relationship curve of specific fire extinguishing action and firefighting efficiency was draw. Combined with the actual firefighting training data, the coupling factors effects on the fighting efficiency, such as the nozzle position, nozzle angle, nozzle height and the location of the fire source, were analyzed, and a simulation calculation method to validate the effectiveness of the firefighters extinguishing fire behaviors and tactics was put forward.
出处
《消防科学与技术》
CAS
北大核心
2015年第1期72-75,共4页
Fire Science and Technology
基金
中国博士后科学基金面上项目"基于系统动力学特性的灭火过程仿真与实验研究"(2014M552586)
海军工程大学自然科学基金资助项目(201200000045)
关键词
火灾学
火灾动力学
灭火效率
数值仿真
消防灭火
雾状水滴
入射角度
fire science
fire dynamics
firefighting efficiencynumerical simulation
fire fighting
spray water
angle of incidence
