naa a22 4500 510766404 CHVBK 20180411083158.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1007/s11630-013-0599-9 doi (NATIONALLICENCE)springer-10.1007/s11630-013-0599-9 Experimental and numerical investigation of the unsteady tip leakage flow in axial compressor cascade [Elektronische Daten] [Chengqing Li, Tingfeng Ke, Jingxuan Zhang, Hongwu Zhang, Weiguang Huang] For convenience of both measurement and adjusting the clearance size and incidence, the current research is mainly conducted by experiments on an axial compressor linear cascade. The characteristics and the condition under which the unsteadiness of tip leakage flow would occur were investigated by dynamic measuring in different clearances, inlet velocities and incidences. From the experiment it is found that increasing tip clearance size or reducing rotor tip incidence can affect the strength of the tip clearance flow. Then the experimental results also indicate the tip leakage shows instability in certain conditions, and the frequency of unsteadiness is great influenced by inflow angle. The condition of occurrence of tip leakage flow unsteadiness is when the leakage flow is strong enough to reach the pressure side of the adjacent blade. The main cause of tip leakage flow unsteadiness is the tip blade loading. Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag Berlin Heidelberg, 2013 axial flow compressor nationallicence linear cascade nationallicence tip leakage flow nationallicence unsteady nationallicence Li Chengqing Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut Ke Tingfeng Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut Zhang Jingxuan Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut Zhang Hongwu Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut Huang Weiguang Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut Journal of Thermal Science SP Science Press 22/2(2013-04-01), 103-110 1003-2169 22:2<103 2013 22 11630 https://doi.org/10.1007/s11630-013-0599-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11630-013-0599-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Chengqing Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut NATIONALLICENCE 700 1- Ke Tingfeng Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut NATIONALLICENCE 700 1- Zhang Jingxuan Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut NATIONALLICENCE 700 1- Zhang Hongwu Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut NATIONALLICENCE 700 1- Huang Weiguang Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201203, Shanghai, China aut NATIONALLICENCE 773 0- Journal of Thermal Science SP Science Press 22/2(2013-04-01), 103-110 1003-2169 22:2<103 2013 22 11630 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer