Results 21 to 30 of about 2,271 (286)
Energies, 2022 In order to research the influence mechanism of bow blades on the flow field of supersonic tandem rotors of compressors, the supersonic rotor rotor37 is taken as the prototype and redesigned as a supersonic tandem rotor.
Hao Cheng, Zhaoyun Song, Bo Liu
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Aerodynamic Optimization Design of a Supersonic Compressor Rotor with High Pressure Ratio
International Journal of Aerospace Engineering, 2021 Supersonic compressors have a high wheel speed and operational capability, which facilitate a high stage pressure ratio. However, the strong shock waves in the passage of a supersonic rotor and the interference between shock waves and boundary layers can
Cui Cui, Zhenggui Zhou, Endor Liu
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A Study of Casing Treatment Stall Margin Improvement Phenomena [PDF]
Volume 1A: General, 1975 The results of a program of experimental and analytical research in casing treatments over axial compressor rotor blade tips are presented. Circumferential groove, axial-skewed slot, and blade angle slot treatments were tested at low speeds. With the circumferential groove treatment the stalling flow was reduced 5.8 percent at negligible efficiency ...
D. C. Prince +2 more
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CFD Investigation of an Axial Compressor with Casing Treatment for the Enhancement of the Stall Margin [PDF]
Scientia Iranica, 2021 Casing treatment is an efficient technique that is used to increase the compressor stall margin with a minor reduction in efficiency. The interaction between the blade passage and the groove is the main cause of the stall margin improvement by various researches.
Naseem Ahmad +4 more
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Design Optimization of 1.5-Stage Transonic Compressor Based on BPNN Surrogate Model and NSGA-II
Machines, 2023 To achieve multi-objective aerodynamics design optimization for a 1.5-stage transonic compressor, a design platform incorporating blade parameterization methods, a BPNN surrogate model, and the NSGA-II optimization method was developed. The stagger angle
Xinlong Li +5 more
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Aerospace, 2023 This paper investigates the effects of two modifications to a vaned recessed casing treatment. First, the shape of a circular curve was used in the top of the treated casing. Second, a fully curved guide vane was also applied.
Mohammad Akhlaghi, Yahya Azizi
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International Journal of Aerospace Engineering, 2023 The tip leakage vortex (TLV) induced by the tip clearance flow has a significant impact on the performance of centrifugal compressors, causing impeller flow losses and reducing the stall margin.
Shuli Hong +3 more
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Machines, 2023 To investigate the influence of blade aspect ratio and solidity on the performance of heavy-duty gas turbine transonic compressors, a multi-objective optimization design platform was built by adopting the blade parameterization method based on the ...
Shuaipeng Liu +4 more
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Comparative Study of the Performance Improvement of an Axial Compressor with a Micro-Vortex Generator and a Suction Slot [PDF]
Journal of Applied Fluid Mechanics, 2023 Flow control methods have been gradually applied to improve the flow field characteristics of axial compressors. However, most of the current research is focused on the cascade, and few studies have taken a compressor as the research object. Therefore, a
S. Ma, X. L. Sun, W. Cheng, W. L. Chu
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Aerospace, 2021 This work focuses its attention on possibilities to enhance the stability of an axial compressor using a casing treatment technique. Circumferential grooves machined into the case are considered and their performances evaluated using three-dimensional ...
Marco Porro +2 more
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