Study on the Combustion Characteristics of Al/AP/HTPB Propellant Based on High-speed Off-axis Holographic Visualization

被引：0
|
作者：
Wu Y.-C. [1 ]
Zhuo Z. [1 ]
Wu S.-X. [2 ]
Zhou C.-Y. [2 ]
Qin Z. [3 ]
Yang Y.-J. [3 ]
Zhao F.-Q. [3 ]
Wu X.-C. [1 ]
机构：
[1] State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou
[2] Key Laboratory of Aerospace Chemical Power Technology, Hubei Institute of Aerospace Chemical Technology, Hubei, Xiangyang
[3] Xi'an Modern Chemistry Research Institute, Xi'an
来源：
Huozhayao Xuebao/Chinese Journal of Explosives and Propellants | 2023年 / 46卷 / 02期
关键词：
aluminum powder; combustion characteristics; micro-explosion; off-axis holography technology; physical chemistry; solid propellant;
D O I：
10.14077/j.issn.1007-7812.202209010
中图分类号：
学科分类号：
摘要：
In order to investigate the complex combustion process of metal particles, a 25kHz high-speed digital off-axis holographic imaging system was built to study the time-resolved three-dimensional visualization of typical phenomena of particles during Al/AP/HTPB propellant combustion. The typical combustion phenomena of Al particles in propellant combustion were analyzed by 3D visualization, including the flaking of particles on the combustion surface of propellant, the micro-explosion of particle clusters, and the existence of wake flame surface of burning particles. Time-resolved three-dimensional reconstruction of the observed aluminum particles is performed by high-speed off-axis holography as well. The results show that off-axis holography technique eliminates the interference of twin images and can obtain clear reconstructed images of particles. Its independently configured reference light largely eliminates the influence of flame on light propagation and effectively suppresses the aberration caused by the sharp change of refractive index around the particles. The high-speed off-axis holography has strong practicality and broad application prospects in the visualization and diagnosis of solid propellant combustion. © 2023 China Ordnance Industry Corporation. All rights reserved.
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页码：179 / 184
页数：5
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