液体工质激光推进力学性能实验研究

项目名称： 液体工质激光推进力学性能实验研究

项目编号： No.11202241

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 崔村燕

作者单位： 中国人民解放军装备学院

项目金额： 28万元

中文摘要： 本项目以液膜式推进器为研究对象，旨在通过实验的方法揭示液体工质激光推进推力形成机制、研究冲量耦合系数和比冲的影响因素，建立液体工质激光推进力学性能参数的数据集，分析实验结果与现有理论计算结果之间的差异。主要研究内容包括： （1）水诱导空气击穿、水击穿和水烧蚀三种现象的物理机制及发生条件，揭示能量吸收和转化机制； （2）三种不同现象的推力产生机制及其对力学性能参数的影响，揭示能量耦合机制； （3）建立激光参数和工质物性参数与推力、比冲和冲量耦合系数之间关系的数据集。 研究结果将为优化液体工质激光推力器设计及完善激光与液体相互作用数学模型提供重要依据，为研究激光能量如何最大限度转化为推力器动能这一工程应用不可避免的科学问题奠定基础，对于丰富激光与液体相互作用理论、促进液体工质激光推进技术的发展有重大意义。

中文关键词： 激光推进；液体烧蚀；空穴；推力；冲量耦合系数

英文摘要： The Thin Liquid Film Engine is the research object of this ietm. The aims of this ietm are:to discover the thrust formation mechanism of laser propulsion with liquid propellent;to study the influence factors of impulse coupling coefficient and specific impulse;to establish dataset of the mechanism performance of laser propulsion with liquid propellent;and to analyse the difference between the experiment results and the calculated ones based on the existing theories.The main research contents include: (1)study on the physical mechanism and occuring conditions of the three different phenomenon, which are water-induced-air-breakdown, water ablation,and water breakdown, in order to discover the mechanism of energy absorption and conversion. (2)study on the thrust formation mechanism and the mechanical performance parameters, which are thrust, impulse coupling coefficient, and specific impulse, of the three different phenomenon in order to discover the energy coupling mechanism. (3)study on the effects of the characteristic parameters of laser and propellant on the three mechanical performance parameters. The research results have great significances for enriching the theory of the interaction between the laser and the liquid, and promoting the development of laser propulsion with liquid propellent. On one hand, they

英文关键词： Laser propulsion；Liquid ablation；Cavitation；Thrust；Momentum coupling coefficient