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Abstract�� A combustor with a shear tricoaxial gas-gas injector was researched numerically and experimentally. The influence of propellants temperature in the injector inlet on the combustion performance and wall temperature was investigated and analyzed. The numerical simulation results show that the variable momentum ratio of fuel to oxidizer which brought by the variable propellants temperature is the main factor. The influence of the fuel temperature on the combustion performance and wall temperature is more obviously than the oxidizer temperature. The experimental results validate the numerical simulation results.

Keywords�� shear tricoaxial injector combustion performance wall temperature numerical simulation experiment

Received 2010-05-21;

Fund:

��863��Ŀ

About author: �� ï(1983-),��,��ϳ�ɳ��,��ʿ��, feitian_cs@163.com.

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��ï, ��, ��ƽ, �̹��.��ƽ��¶ȶ�ȼ�պͱ��µ�Ӱ��[J] ��պ��ѧѧ��, 2011,V37(9): 1091-1094,1099

Li Mao, Gao Yushan, Jin Ping, Cai Guobiao.Effects of propellants temperature in gas-gas injector inleton combustion performance and wall temperature[J] JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(9): 1091-1094,1099

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http://bhxb.buaa.edu.cn//CN/ �� http://bhxb.buaa.edu.cn//CN/Y2011/V37/I9/1091

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