, Volume 10, Issue 1, pp 49-62

Wet compression performance of a transonic compressor rotor at its near stall point

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Abstract

In order to study the effects of wet compression on a transonic compressor, a full 3-D steady numerical simulation was carried out under varying conditions. Different injected water flow rates and droplet diameters were considered. The effect of wet compression on the shock, separated flow, pressure ratio, and efficiency was investigated. Additionally, the effect of wet compression on the tip clearance when the compressor runs in the near-stall and stall situations was emphasized. Analysis of the results shows that the range of stable operation is extended, and that the pressure ratio and inlet air flow rate are also increased at the near-stall point. In addition, it seems that there is an optimum size of the droplet diameter.

Foundation item: Supported by the National Natural Science Foundation of China under Grant No.50776021.
Huaifeng Yang was born in 1982. He finished his BS and MS at Harbin Engineering University. Now he is working in Aviation Institute of China, Shenyang 606.
Qun Zheng doctor of engineering, professor, and PhD supervisor of marine engineering. He finished his BS, MS and PhD at Harbin Engineering University. He has been working in the College of Power and Nuclear Energy Engineering of HEU after he got the bachelor degree. His research interests include aerodynamics and thermodynamics.
Mingcong Luo was born in 1986. He received the BS degree in Thermal Energy and Power Engineering from Harbin Engineering University and now he is studying for his phD degree in Marine Engineering in this university. His research direciton is analysis of system and general performance of the power equipments.