维普中文期刊产品整合服务

System Design and Analysis of Hydrocarbon Scramjet with Regeneration Cooling and Expansion Cycle

查看全文 作　　者：WU [1]Xianyu;YANG [1]Jun;ZHANG [1]Hua;SHEN [1]Chibing 高影响力作者 机构地区：[1]College of Aerospace Science and Engineering,National Univ.of Defense Technology高影响力机构 出　　处：《Journal of Thermal Science》索引2015年第24卷第4期,共6页高影响力期刊 基　　金：National Natural Science Foundation of China(No.11272344) 摘　　要：A new expansion cycle scheme of the scramjet engine system including a hydrocarbon-fuel-based(kerosene)regenerative cooling system and supercritical/cracking kerosene-based turbo-pump was proposed in this paper.In this cycle scbeme,the supercritical/cracking kerosene with high pressure and high temperature is formed through the cooling channel.And then,in order to make better use of the high energy of the supercritical/cracking fuel,the supercritical/cracking kerosene fuel was used to drive the turbo-pump to obtain a high pressure of the cold kerosene fuel at the entrance of the cooling channel.In the end,the supercritical/cracking kerosene from the turbine exit is injected into the scramjet combustor.Such supercritical/cracking kerosene fuel can decrease the fuel-air mixing length and increase the combustion efficiency,due to the gas state and low molecular weight of the cracking fuel.In order to ignite the cold kerosene in the start-up stage,the ethylene-assisted ignition subsystem was applied.In the present paper,operating modes and characteristics of the expansion cycle system are first described.And then,the overall design of the system and the characterisitics of the start-up process are analyzed numerically to investigate effects of the system parameters on the scramjet start-up performance.The results show that the expansion cycle system proposed in this paper can work well under typical conditions.The research work in this paper can help to make a solid foundation for the research on the coupling characteristics between the dynamics and thermodynamics of the scramjet expansion cycle system. 关 键 词：超燃冲压发动机 发动机系统 膨胀循环 再生冷却 总体设计 碳氢燃料 环烃 发动机燃烧室
相关文献

参考文献(9)

引证文献(8)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费