论文部分内容阅读
利用激光等离子体减小高超声速飞行器的气动阻力对节能和最大限度地提高飞行器性能具有重要的意义。简单概述了高超声速飞行器的军事需求及等离子体减阻技术的分类;总结了激光等离子体减阻机理的实验研究和数值模拟情况;讨论了等离子体能量、点火位置和形状等参数对减阻性能的影响,目前利用激光等离子体技术可以减小70%的波阻。针对中国的激光等离子体减阻研究工作,分析了目前国内外研究中存在的问题,提出了深入开展激光等离子体减阻机理研究等建议。
The use of laser plasma to reduce the aerodynamic drag of hypersonic vehicles is of great significance for saving energy and maximizing the performance of the aircraft. The military demand of hypersonic vehicle and the classification of plasma drag reduction technology are briefly introduced. The experimental research and numerical simulation of laser plasma drag reduction mechanism are summarized. The effects of plasma energy, ignition position and shape on the drag reduction performance The current use of laser plasma technology can reduce the wave resistance of 70%. In view of the research work of laser plasma resistance reduction in China, the problems existing in the research at home and abroad are analyzed, and the suggestions of further research on the drag reduction mechanism of laser plasma are put forward.