项目名称: 液体介质中激光支持爆轰波形成机理和传播规律研究
项目编号: No.11302251
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 鲁建英
作者单位: 中国人民解放军防化学院
项目金额: 28万元
中文摘要: 深入研究激光与液体介质相互作用机理,激光支持爆轰波的形成和传播规律,对于建立液体工质激光推进理论和激光推进器设计具有重要意义。本项目建立液体介质中激光支持爆轰波流场结构的实验观测方法,获得不同液体介质中爆轰波流场演化的物理图像。分析液体介质中激光支持爆轰波形成机理,给出液体介质中激光支持爆轰波特征参数的解析计算方法。建立考虑液体介质激光能量吸收、汽化、电离、爆轰波形成等过程的两相流数值计算模型,实现激光作用液体介质形成爆轰波全过程的数值模拟计算,获得激光能量转化机制及爆轰波传播规律。建立液体介质中激光支持爆轰波的基础理论和计算方法,为液体工质激光推进系统设计提供基本理论依据。
中文关键词: 激光推进;爆轰波;水;等离子体;
英文摘要: Understanding the interaction mechanism of laser and liquid meidum, formation and propagation of laser supported detonation wave in liquid are of considerable importance to establish laser propulsion theory and designing propelling vehicles. In the project, a experiment technique for visualing the structure of laser supported detonation in liquid will be introduced to record the growth and propagation of the detonation wave at high temporary and spatial resolution. The formation mechanism of laser supported detonation wave in liquid will be analyzed, and analytical expessions for the characteristic parameters within detonation front will be given. A two-phase computational model of laser supported detonation wave in liquid cosidering the physical mechanism of laser energy deposition, vaporing process, inoization and electronics reverse bremsstrahlung absorption will be developed to describe the whole process of formation and propagation of laser supported detonation wave in liquid. Through numerical simulation,the propagation rules of laser supported wave in liquid and energy transformation law will be given. The basic theory and calculation methods of laser supported detonation wave in liquid developed in this project will provide the theory foundation for designing the laser propulsion system in liquid.
英文关键词: laser propulsion;detonation wave;water;plasma;