火炸药学报2008，Vol.31Issue(6)：60-64,5.
B/KNO3点火药激光点火过程中二次燃烧现象的实验和光声模拟
Experiment and Photoacoustic Simulation of Secondary Combustion Phenomenon of B/KNO3 Mixture Ignited by Laser
叶迎华 1沈瑞琪 1胡艳1
作者信息
- 1. 南京理工大学化工学院,江苏,南京,210094
- 折叠
摘要
Abstract
A secondary combustion phenomenon during the ignition process of 40/60-B/KNO3 mixture excited by Nd∶YAG pulse laser,was observed and attested by high-speed camera at 2 000 fps and by photo-detector. The reactive photoacoustic model also confirmed the secondary combustion phenomenon, which was established to simulate the laser ignition process, involving the contribution of chemical reaction different from the famous G-R model. The first combustion is supported by laser energy while the secondary combustion is determined by the balance of the competition between the heat generation and dissipation processes. With increasing the laser energy, the heat accumulating process shortens and the combustion interval decreases.关键词
物理化学/点火药/二次燃烧/激光点火/B/KNO3/高速摄像机Key words
physical chemistry/pyrotechnics/secondary combustion/laser ignition/B/KNO3 mixture/high-speed camera分类
军事科技引用本文复制引用
叶迎华,沈瑞琪,胡艳..B/KNO3点火药激光点火过程中二次燃烧现象的实验和光声模拟[J].火炸药学报,2008,31(6):60-64,5.
