燃烧面积对烟火药水下燃烧特性的影响研究  

Effect of the Combustion Area on Combustion Characteristics for Underwater Combustion of Pyrotechnic Composition

作　　者：吴昱 欧阳的华[2] 金青君 毕鹏禹 WU Yu;OUYANG Di-hua;JIN Qing-jun;BI Peng-yu(Chemical Defense Institute of Academy of Military Science,Beijing,102205;Engineering University of Chinese Armed Police Force,Xi’an,710086)

机构地区：[1]军事科学院防化研究院,北京102205 [2]武警工程大学,陕西西安710086

出　　处：《火工品》2019年第5期45-48,共4页Initiators & Pyrotechnics

摘　　要：从燃烧理论和流体动力学的角度出发,研究燃烧面积对烟火药水下燃烧特性的影响,基于所构建的气泡动力学模型,计算分析了不同燃烧面积时烟火药水下燃烧的特性。结果表明:在其他条件不变的情况下,随着燃烧面积的增加,燃烧室内气体达到稳定燃烧所需的压力增加,气泡的膨胀速度、气泡体积变化的加速度以及对应的声压级亦随之增加。In order to study the effect of combustion area on underwater combustion characteristics of the pyrotechnic composition,focusing on the combustion theory and the fluid dynamic characteristics,based on the constructed bubble dynamics model,the underwater combustion characteristics of pyrotechnic composition with different combustion areas were researched.The results show that the combustion area strongly affects the pressure in the combustion chamber and the dynamic behaviors of the bubble.With the increasing of the combustion area,the pressure in the combustion chamber,the volume expanding velocity of the bubble and its acceleration,as well as the sound pressure level are all increased.

关 键 词：烟火药 水下燃烧 燃烧面积 气泡 声压级 

分 类 号：TQ560.1[化学工程—炸药化工]