李建中

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教授 博士生导师

招生学科专业:
动力工程及工程热物理 -- 【招收博士、硕士研究生】 -- 能源与动力学院
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 -- 【招收博士、硕士研究生】 -- 能源与动力学院

毕业院校:南京航空航天大学

学历:南京航空航天大学

学位:工学博士学位

所在单位:能源与动力学院

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Investigation on combustion properties in simplified wave rotor constant volume combustor

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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:A simplified wave rotor constant volume combustor (WRCVC) rig was installed by Nanjing University of Aeronautics and Astronautics (NUAA), which includes rotor channel, inlet port, outlet port, seal discs, hot-jet igniter, air-intake section and fuel injector. This simplified WRCVC could operate at different rotating speed of inlet/outlet ports and different equivalence ratio. The pre-compression pressure of combustible mixture filling and peak pressure of constant volume combustion were measured by pressure sensor. As the rotating speed of inlet/outlet ports increased, the peak pressure of combustion pressurization in channel significantly increased and the largest pressure gain was approximately 0. 6MPa (Pressure gain ratio of 7. 0). The maximum average peak pressure was 0. 4558MPa (Pressure gain ratio of 5. 558). The pressure gain properties of WRCVC with different rotating speed of inlet/outlet ports and different equivalence ratio were analyzed and discussed. Using high-speed photography, the dynamic processes of initial flame formation and flame propagation in the channel of WRCVC were revealed. The influence of inlet velocity, rotating speed and equivalence ratio on pressure gain and flame progation properties of WRCVC were attained. © 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:Gong, Erlei,文立伟,Yuan, Li

通讯作者:Gong, Erlei,李建中