烟火药水下燃烧高温粒子产物的声辐射机理及特性研究

Seeking an effective underwater sound source technology is an important research topic in the field of underwater acoustic warfare. This project deals with a pyrotechnical-type underwater sound source technology, to carry out the analysis and experimental testing for the high- temperature particles product and the bubble characteristics, which are produced by the interaction between high-temperature particles and water. To establish the theoretical model for the calculation of the single particle product performance parameters, a single bubble dynamics characteristics and acoustic radiation characteristics. And then, to analyze the main factors, which are affecting the single bubble dynamics and acoustic radiation characteristics. Experimental research and statistical analysis of the bubbles evolution of the law, to simulate bubbles between collision and coalescence behavior with the Monte Carlo method, and then, to evaluate the characteristic of the acoustic radiation induced by the interaction between high-temperature particles and water produced for underwater combustion of pyrotechnic composition, which change with the high-temperature particle products group characteristics and bubbles reveal the mechanism, acoustic radiation model was deduced, which can guiding the formulations to optimize the design for the pyrotechnical-type underwater combustion sound source. The research results of the project have important significance for exploring a new generation of underwater combustive sound source technology and improving the survival capability of naval vessels in hydroacoustic countermeasure warfare.

寻求一种有效的水下声源技术是水声对抗等领域的重要研究课题。本项目针对烟火药水下燃烧式声源技术，开展烟火药水下燃烧高温粒子产物特性及该产物与水作用所形成的气泡特性的分析和实验测试，建立计算单个粒子产物性能参数与单气泡动力学特性和声辐射特性的理论模型，分析影响单气泡动力学特性和声辐射特性的主要因素。在此基础上，对烟火药水下燃烧粒子产物群与水作用所形成的气泡群特性进行实验研究，统计分析气泡群的演变规律，运用Monte Carlo方法，模拟气泡之间的碰撞和聚并行为，分析烟火药水下燃烧高温粒子产物与水作用的声辐射特性随高温粒子产物群特性以及气泡群演变特性的变化情况，揭示其声辐射机理，构建高温粒子产物群与水作用的声辐射模型，指导烟火药水下燃烧式声源用装药的配方优化设计。该项目的研究成果对于探索新一代水下燃烧式声源技术，提高水面舰艇在未来水声对抗作战中的生存能力等具有重要意义。

寻求一种有效的水下声源技术是水声对抗等领域的重要研究课题。本研究针对烟火药水下燃烧式声源技术，开展了烟火药水下燃烧高温粒子产物特性及该产物与水作用所形成的气泡特性的分析和实验测试，建立了计算单个粒子产物性能参数与单气泡动力学特性和声辐射特性的理论模型，分析了影响单气泡动力学特性和声辐射特性的主要因素。在此基础上，分析了烟火药水下燃烧高温粒子产物与水作用的声辐射特性随高温粒子产物特性以及气泡演变特性的变化情况，揭示了其声辐射机理，以指导烟火药水下燃烧式声源用装药的配方优化设计。该项目的研究成果对于探索新一代水下燃烧式声源技术，提高水面舰艇在未来水声对抗作战中的生存能力等具有重要意义。目前，在“Flow, Turbulence and Combustion”和“Science and Technology of Energetic Materials”等国内外核心以上期刊发表相关学术论文5篇，其中SCI收录期刊论文4篇，中文核心期刊1篇，此外，在审稿的国外SCI收录期刊论文3篇；申报国家发明专利1项（2017年1月已公开）；获军队科技进步奖三等奖1项；培养毕业硕士研究生1名。