摘要
为研究介质的预压缩对脉冲爆轰发动机效率的影响 ,通过热力学过程效率分析 ,计算了对可爆介质进行不同程度预压缩的条件下 ,爆轰过程和爆燃过程机械功输出能力 .研究中 ,介质被认为是多方气体介质 ,爆轰过程被近似地认为是等容燃烧过程 ,而爆燃过程则被视为等压燃烧过程 .研究结果表明 ,对介质进行预压缩 ,可以提高爆燃、爆轰2种过程的机械功输出能力 .对于给定的化学反应热 ,预压缩对爆燃过程机械功输出能力的影响 。
To analyze the influence of medium pre compression degree to the efficiency of pulse detonation engines, relations between the pre compression degree and the mechanical power exportation ability in detonation and deflagration processes have been investigated. In order to simplify the analysis, medium is considered as polytropic gas. Detonation and deflagration are supposed to be isovolumetric and isopressure combustion. Results show that pre compression can cause the increase of the net mechanical power exportation ability in both detonation and deflagration processes. The effect is more obvious for deflagration process.
出处
《弹道学报》
CSCD
北大核心
2004年第2期76-79,共4页
Journal of Ballistics
基金
深圳市科技三项经费资助项目
关键词
燃烧
爆轰
激波
combustion, detonation, shock wave
