项目名称： 激光驱动飞片机理和作用规律研究

项目编号： No.11472050

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 陈朗

作者单位： 北京理工大学

项目金额： 95万元

中文摘要： 激光驱动飞片技术在先进起爆技术、空间碎片高速撞击和高压物理实验等方面具有重要的应用价值。深入认识激光驱动飞片的作用机理和规律,对高效能激光驱动飞片系统研究具有重要意义。本项目主要进行激光作用金属膜体表面的爆轰波及等离子流场的实验，观测爆轰流场结构，分析爆轰波及等离子体的形成机理和流场演化规律，研究爆轰波流场的理论计算方法，掌握激光驱动飞片速度和形态测量技术，研究多脉冲激光和复合膜体下驱动飞片的作用机理和规律，构建激光驱动飞片的计算模型，实现激光驱动飞片数值模拟，建立激光驱动飞片系统的设计理论和计算方法，探索进一步提高飞片速度和完整性的技术途径。

中文关键词： 激光爆轰波；激光驱动；数值模拟；等离子体

英文摘要： The technology of laser-driven flyer has important application values on the aspects of initation explosive, space fragment and high-pressure physics experiments. Studying the physical mechanism and the law in the laser-driven flyer process will be improtant for design the laser-driven flyer system. In this project, the experiments of laser ablation aluminum film will be conducted and the schlieren photography technique will be applied for the observations of laser-supported detonation waves and plasma flow field. The laser-supported detonation waves produced, the formation mechanism of plasma and the evolution of the flow field will be analyzed. Additionally, the numerical simulation technology will be set up for obtaining more details message in the process of the laser-ssupported Detonation waves and plasma flow field. In further, the measure techniques of flyer velocity and flyer integrity, the mechanism and law of laser-driven flyer of muti-layer in muti-laser pulse will be investigated. In addition, a numerical model will be studyed to calculate the whole process of laser-driven flyer. Finally, the design theory and caculation method for laser-driven flyer sysytem will be established. The way to improve the flyer velocity and integrity in technical will be explored.

英文关键词： laser detonation wave;laser driven;mumerical simulation;plasma