| Citation: | LIU Fangyuan, WU Wanyang, ZHONG Jingjun. Influence of the widest position of tip winglets on compressor cascade characteristics at Mach number 0.7[J]. Journal of Aerospace Power, 2025, 40（6）：20230819 doi: 10.13224/j.cnki.jasp.20230819
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To investigate the impact of the variation in the widest position of the tip winglets on the leakage flow at the blade tip of the compressor, the widest position of the pressure surface tip winglets in the circumferential direction with an addition of 1.5 times the blade width was studied. The widest positions of the tip winglets were located at 10% to 90% of the axial chord length of the blade, with intervals of 20% of the axial chord length. Subsequently, the effects of different widest position tip winglets schemes on the clearance flow field at the compressor blade tip were analyzed. The results showed that: the change of the widest position of the tip winglet on the axial chord length had a direct influence on the flow field regulation effect. PW0.1c scheme with the widest position of the winglet at 10% axial chord length increased the total pressure loss by 2.39%, while PW0.7c scheme with the widest position at 70% axial chord length had the most obvious improvement effect on the flow field, reducing the total pressure loss by 1.56%.
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