刘君

个人信息Personal Information

副教授 硕士生导师

招生学科专业:
航空宇航科学与技术 -- 【招收硕士研究生】 -- 能源与动力学院
能源动力 -- 【招收硕士研究生】 -- 能源与动力学院

性别:男

毕业院校:南京航空航天大学

学历:博士研究生毕业

学位:工学博士学位

所在单位:能源与动力学院

办公地点:A10-626

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Turbine based combined cycle inlet mode transition at different operation conditions

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所属单位:能源与动力学院

发表刊物:Int. Space Planes Hypersonics Technol. Conf.

摘要:Smooth transition from turbojet to ramjet mode is critical to turbine based combined cycle (TBCC) propulsion system. The mode transition fluid dynamics and the performance of the tandem configuration inlet operating at different conditions were investigated through wind tunnel tests. When the inlet operated at supercritical and critical conditions, the terminal shock was unsteady and oscillated in the throat and the shoulder of the inlet, respectively. When the inlet operated at subcritical condition, the shock stayed steady in front of the cowl leading edge. During the mode transition, the mass flow ratio and Mach number increased in the aerodynamic interface plane of high speed flowpath and decreased in the low speed flowpath at different operation conditions. The total pressure distortion index DC60 was not sensitive to the different operation conditions, but composite distortion index W and total pressure recovery σ were sensitive to the operation of the inlet. The results obtained in this paper can help us realize fluid dynamics and the performance of the tandem configuration inlet during mode transition and provide some suggestions for smooth inlet mode transition. © 2017, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

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发表时间:2017-01-01

合写作者:刘君,葛宁

通讯作者:袁化成