微波放电等离子体作为一类低温非平衡等离子体,具有密度大、活性高、温度低及工作气压范围广等优良性能,因而在航空航天发动机点火与助燃领域具有广阔的应用前景。该新兴技术现已成功实现点火,实验证实其关键技术在于放电腔以及启动器的优化设计。重点介绍了国内外微波放电等离子体点火与助燃技术的相关研究与发展;并根据已有研究基础,提出了国内微波放电等离子体在航空航天发动机点火与助燃领域的研究方向和发展思路;同时,总结了各单位独特的方案设计,可为今后进一步的研究探索提供重要的参考和依据。
Microwave discharge plasma is a class of lowtemperature nonequilibrium plasma with excellent performance of high density,high activity,low temperature,as well as a wide range of working pressure and so on.It is particularly promising in the field of aerospace engine ignition and assisted combustion.The overview of the system composition and mechanism for ignition and com bustion by the microwave discharge plasma was provided and the related research and development were mainly introduced. Mean while,the device structure type was summarized and based on the existing research,the research direction and development ideas a bout microwave discharge plasma which is applied in the field of aerospace engine ignition and assisted combustion was put forward.