高超声速飞行器等离子体鞘套电磁传输特性研究

项目名称： 高超声速飞行器等离子体鞘套电磁传输特性研究

项目编号： No.11472002

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： 王国林

作者单位： 中国空气动力研究与发展中心

项目金额： 75万元

中文摘要： 高超声速飞行器等离子体鞘套严重影响着飞行器与地面之间的通信传输，引起通讯中断问题，是新型高超声速飞行器研制中亟需解决的关键技术问题之一。本项目针对高超声速飞行器等离子体鞘套电磁传输特性，采用试验测试与数值计算相结合的方式，拟初步建立可靠的等离子体电磁传输特性预测方法。本项目拟在等离子体风洞上开展等离子体参数测试与控制方法研究，采用矢量网络分析仪和标准增益天线，建立等离子体中电磁波传输特性测试平台，研究电磁波传输特性与等离子体参数之间的关系。同时，研究化学非平衡等离子体数值模拟方法和电磁波传输特性数值模拟方法，并通过地面试验数据对数值模拟方法进行修正。通过本研究建立可靠的数值计算方法和试验测试方法，并对典型高超声速飞行器再入通讯中断问题进行分析和评估。

中文关键词： 高超声速飞行器；等离子体鞘套；电磁传输

英文摘要： Plasma sheath around hypersonic vehicle has a severe effect on electromagnetic communication between vehicle and land station and results in communication break, which is a key problem in the development of new style hypersonic vehicle. This project aims at electromagnetic wave propagation characteristic of plasma sheath around hypersonic vehicle, proposes to integrate experimental test and numerical simulation and establishes reliable method to resolve the problem. The measurement and control of plasma parameters in plasma wind tunnel will be proceed, and the relation between electromagnetic wave propagation characteristic and plasma parameters will be studied in a test platform which includes vector network analyzer and standard horn antenna. The numerical simulation method of chemical non-equilibrium plasma and electromagnetic wave propagation will also be studied, which will be corrected with the experimental data. A reliable numerical simulation method and experimental method is the final propose, which will be applied in the evaluation of electromagnetic wave propagation characteristic of plasma sheath around classical hypersonic vehicle.

英文关键词： hypersonic vehicle;plasma sheath;electromagnetic wave propagation