摘要
为提高高楼灭火的灭火效能、优化设计、降低灭火的成本,针对超细粉体的高楼灭火弹爆炸抛撒的过程和特征进行分析,利用AUTODYN软件对高楼灭火弹的爆炸抛撒过程进行仿真,提出了评估灭火效能的方法。根据爆轰产物等熵膨胀原理和流体动力学理论,通过对灭火剂抛撒各个阶段的理论分析,分析计算了灭火效能,估算灭火弹的灭火威力。建立了灭火剂爆炸抛撒的数学模型,提出了计算灭火剂抛撒半径方法和评估灭火威力的方法,对灭火剂灭火效能的研究有一定的参考意义。
In order to improve the high - rise fire - extinguishing efficiency, optimal design and reduce cost of fire - extinguishing, to analyze the process and characteristics about explosion scatter about superfine powder high - rise fire - extinguishing projectile, simulation the explosion scatters process of high - rise fire - extinguishing projectile by AUTODYN, and propose the method about estimate the fire - extinguishing power. According to the principle of det- onation products isentropic expansion and the fluid dynamics, analysis and calculation extinguishing ability and esti- mate the fire - extinguishing power by theoretical analysis of extinguishing agent scatter in every stages. To establish the mathematical model of extinguishing agent explosion scatter, propose calculation method of extinguishing agent scatter radius and estimate the fire - extinguishing power , which has reference significance for the study of fire - extinguishing ability of extinguishing agent.
出处
《计算机仿真》
CSCD
北大核心
2014年第2期454-460,共7页
Computer Simulation
关键词
超细粉
高楼灭火弹
爆炸抛撒
灭火效能
Superfine powder
Fire - extinguishing high - rise projectile
Explosion scatter
Fire - extinguishing ability
