Numerical Study on End Wall Synthetic Jet to Improve Performance and Stability Margin of a High-speed Subsonic Axial Compressor Rotor

Wang, G.; Chu, W.; Liu, W.

doi:10.47176/jafm.16.06.1587

Numerical Study on End Wall Synthetic Jet to Improve Performance and Stability Margin of a High-speed Subsonic Axial Compressor Rotor

Document Type : Regular Article

Authors

¹ School of Aeronautics and Astronautics, Guilin University of Aerospace Technology, Guilin, Guangxi, 541004, China

² School of Power and Energy, Northwestern Polytechnical University, Xi’an, Shanxi, 710129, China

10.47176/jafm.16.06.1587

Abstract

Synthetic jet has been confirmed as a novel flow control technology. However, the existing application research on synthetic jet in axial flow compressor is still confined to cascade or low-speed axial flow compressors, and rarely high-speed axial flow compressor. The effects of three vital parameters (i.e., the action position, frequency, peak velocity) on the aerodynamic performance and stability margin are systematically studied, with a high-speed compressor rotor as the object of numerical simulation. An optimal excitation position is determined, corresponding to the core position of the compressor top blockage, as indicated by the results, which increases the stability margin and efficiency of the compressor by 13.2% and 1.15% respectively. The excitation frequency has a threshold ranging from 300Hz to 600Hz. Only when the frequency of synthetic jet exceeds this threshold can it suppress the tip leakage flow. Besides, the jet peak velocity may not have a threshold. However, the higher the peak velocity, the greater the mixing loss between the jet and the mainstream of the compressor rotor will be, thus limiting the further increase of the compressor efficiency.

Keywords

Main Subjects

Numerical methods

References

Amitay, M. and A. Glezer (2002). Role of actuation frequency in controlled flow reattachment over a stalled airfoil. AIAA Journal 40(2), 209-216.##

Benini, E., R. Biollo and R. Ponza (2011). Efficiency enhancement in transonic compressor rotor blades using synthetic jets: a numerical investigation. Applied Energy 88(3), 953-962.##

Biollo, R., E. Staffieri and E. Benini (2012). On the use of synthetic jets in transonic compressors. In Turbo Expo: Power for Land, Sea, and Air, American Society of Mechanical Engineers.##

Braunscheidel, E. P., D. E. Culley and K. Zaman (2008). Application of synthetic jets to reduce stator flow separation in a low speed axial compressor. In 46th AIAA Aerospace Sciences Meeting and Exhibit, 602.##

Culley, D. E., M. M. Bright, P. S. Prahst and A. J. Strazisar (2004). Active flow separation control of a stator vane using embedded injection in a multistage compressor experiment. Journal of Turbomachinery 126(6), 24-34.##

De Giorgi, M. G., S. Traficante, C. De Luca, D. Bello and A. Ficarella (2012). Active flow control techniques on a stator compressor cascade: a comparison between synthetic jet and plasma actuators. In Turbo Expo: Power for Land, Sea, and Air, American Society of Mechanical Engineers.##

Hergt, A., R. Meyer and K. Engel (2012). Effects of vortex generator application on the performance of a compressor cascade. Journal of Turbomachinery 135(2), 021026.##

Jin, W. B., K. S. Breuer and C. S. Tan (2005). Active control of tip clearance flow in axial compressors. Journal of Turbomachinery 127(2), 352-362.##

Kiran, K. N. and S. Anish (2017). An investigation on the effect of pitchwise endwall design in a turbine cascade at different incidence angles. Aerospace Science and Technology 71(12), 382-391.##

Li, X., W. Chu and Y. Wu (2014). Numerical investigation of inlet boundary layer skew in axial-flow compressor cascade and the corresponding non-axisymmetric end wall profiling. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 228(6), 638-656.##

Lu, X., W. Chu and J. Zhu (2007). Numerical investigations of the flow mechanisms in a subsonic compressor rotor with axial skewed slots. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 221(3), 301-313.##

Matejka, M., L. Popelka, P. Safarik and J. Nozicka (2008). Influence of active methods of flow control on compressor blade cascade flow. In Turbo Expo: Power for Land, Sea, and Air, American Society of Mechanical Engineers.##

Saito, S., M. Furukawa, K. Yamada, K. Watanabe and N. Niwa (2019). Mechanisms and quantitative evaluation of flow loss generation in a multi-stage transonic axial compressor. In Turbo Expo: Power for Land, Sea, and Air, American Society of Mechanical Engineers.##

Smith, B. L. and A. Glezer (1998). The formation and evolution of synthetic jets. Physics of Fluids 10(9), 2281-2297.##

Vo, H. D. (2007). Suppression of short length-scale rotating stall inception with glow discharge actuation. In Turbo Expo: Power for Land, Sea, and Air, American Society of Mechanical Engineers.##

Wang, W., W. Chu and H. Zhang (2014). The effect of injector size on compressor performance in a transonic axial compressor with discrete tip injection. Proceedings of the Institution of Mechanical Engineers, Part A. Journal of Power and Energy 228(7), 760-771.##

Wu, Y., J. Wu, H. Zhang, and W. Chu (2014). Experimental and numerical investigation of flow characteristics near casing in an axial flow compressor rotor at stable and stall inception conditions. Journal of Fluids Engineering, 136(11), 111106.##

Yan, S. and W. Chu (2021). The improvement of transonic compressor performance by the self-circulating casing treatment. Proceedings of the Institution of Mechanical Engineers, Part C. Journal of Mechanical Engineering Science, 235(7), 1165-1176.##

Zander, V., M. Hecklau, W. Nitsche, A. Huppertz and M. Swoboda (2011). Active flow control by means of synthetic jets on a highly loaded compressor cascade. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 225(7), 897-906.##

Zhang, H., W. Liu, E. Wang, Y. Wu and W. Yao (2019). Mechanism investigation of enhancing the stability of an axial flow rotor by blade angle slots. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233(13), 4750-4764.##

Zhang, P., B. Liu, Y. Yin and J. Yang (2018). Numerical investigation of shroud casing boundary layer suction on a counter-rotating compressor. Journal of Aeronautics, Astronautics and Aviation 50(1), 95-112.##