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- W2080442967 abstract "This paper describes the design of a non-axisymmetric hub contouring in a shroudless axial flow compressor cascade operating at near stall condition. Although, an optimum tip clearance reduces the total pressure loss, further minimization of the losses using hub contouring was achieved. The design methodology presented here combines an evolutionary principle with a three-dimensional CFD flow solver to generate different geometric profiles of the hub systematically. The total pressure loss coefficient was used as a single objective function to guide the search process for the optimum hub geometry. The resulting three dimensionally complex hub promises considerable benefits discussed in detail in this paper. A reduction of 15.2% and 16.23% in the total pressure loss and secondary kinetic energy, respectively, was achieved in the wake. The blade loading was observed to improve by about 4.53%. Other complementary benefits are also listed in the paper. The results confirm that non-axisymmetric contouring is an effective method for reducing the losses and thereby improving the performance of the cascade." @default.
- W2080442967 created "2016-06-24" @default.
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- W2080442967 date "2014-06-16" @default.
- W2080442967 modified "2023-09-25" @default.
- W2080442967 title "Non-Axisymmetric Endwall Contouring in a Compressor Cascade With Tip Gap" @default.
- W2080442967 doi "https://doi.org/10.1115/gt2014-26725" @default.
- W2080442967 hasPublicationYear "2014" @default.
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