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Combined Flow Control Strategy Investigation for Corner Separation and Mid-Span Boundary Layer Separation in a High-Turning Compressor Cascade [PDF]
Entropy, 2022 To comprehensively control the corner separation and mid-span boundary layer (BL) separation, this study proposed and evaluated two new flow control configurations.
Hejian Wang +4 more
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Aerospace, 2022 Nowadays, with the increase of the thrust-to-weight ratio of the aero engines, the high aerodynamic load has made corner separation an issue for axial compressors.
Xiangjun Li +3 more
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Engineering Applications of Computational Fluid Mechanics, 2022 Air injection is an effective method to eliminate flow separation and improve blade loading in compressors. In existing studies on unsteady air injection, achieving a better control effect than steady injection with lower injection consumption is a major
Zhiyuan Cao +5 more
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Energies, 2020 In order to investigate the flow structure and unsteady behavior of three-dimensional corner separation, a delayed detached-eddy simulation (DDES) method based on the Spalart–Allmaras (SA) model is performed on the third-stage stator of a multistage low ...
Jun Li, Jun Hu, Chenkai Zhang
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Control of Corner Separation in Compressor Cascade Using Biomimetic Fish Scales Structure [PDF]
BiomimeticsIn this study, a fish scale structure with low viscous drag was proposed and applied to the suction surface of a compressor cascade to reduce total pressure loss and suppress corner separation, a key source of compressor inefficiency.
Jin-Long Shen, Szu-I Yeh
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Entropy Analysis of the Interaction between the Corner Separation and Wakes in a Compressor Cascade
Entropy, 2017 The corner separation in the high-loaded compressors deteriorates the aerodynamics and reduces the stable operating range. The flow pattern is further complicated with the interaction between the aperiodic corner separation and the periodically wake ...
Hao Wang, Dun Lin, Xinrong Su, Xin Yuan
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Control of Corner Separation with Plasma Actuation in a High-Speed Compressor Cascade
Applied Sciences, 2017 The performances of modern highly loaded compressors are limited by the corner separations. Plasma actuation is a typical active flow control methodology, which has been proven to be capable of controlling the corner separations in low-speed compressor ...
Haideng Zhang +4 more
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Beneficial Effects of Guide Fins on Corner Separation
Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, 2023 Abstract Corner separation is a major phenomenon limiting the operability of aeronautical compressors. Passive control devices such as guide fins are envisioned to reduce its deleterious effects. In this paper, guide fins are optimized to reduce the total pressure losses downstream of a subsonic compressor cascade (M = 0.11, Re = 3.2 105,
Mondin, Gabriel +3 more
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Corner separation control in compressor stators with jets from the blade leading edge
Advances in Mechanical Engineering, 2023 Corner separation occurs easily in highly loaded compressor stators. This paper proposes a novel slot inside the stator blade, with the slot inlet located at the blade leading edge and the slot outlet located at the suction surface, by using the momentum
Huan Zheng, Zhenggui Zhou
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The impact of variable fillets on corner separation in a liner compressor cascade
Journal of the Global Power and Propulsion Society, 2023 The performance of highly-loaded compressor is retricted by complex three-dimensional corner separation. The fillet with variable geometry around the blade has shown its potential in reducing the corner separation. However, there are no specific design criteria for fillets.
Gangduo Zhang +4 more
openaire +2 more sources