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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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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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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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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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Fish Scale-Inspired Flow Control for Corner Vortex Suppression in Compressor Cascades [PDF]
BiomimeticsCorner separation at the junction of blade surfaces and end walls remains a significant challenge in compressor cascade performance. This study proposes a passive flow control strategy inspired by the geometric arrangement of biological fish scales to ...
Jin-Long Shen, Ho-Chun Yang, Szu-I Yeh
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Energies, 2014 Control of corner separation has attracted much interest due to its improvement of performance and energy utilization in turbomachinery. Numerical studies have been performed under both design and off-design flow conditions to investigate the effects of ...
Yangwei Liu, Jinjing Sun, Lipeng Lu
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The Unsteady Topology of Corner Separations
Journal of Turbomachinery, 2021 As an axial compressor is throttled three-dimensional separations develop in the corners between the blades and annulus endwall. Surprisingly, little is understood about the unsteady topology of these separations. One of the problems with studying corner separations is that it is often difficult to understand whether a particular flow structure in the ...
Dawkins, Ivo +3 more
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Frontiers in Energy Research, 2022 Three-dimensional separation is an inherent flow feature in the blade-end corner of compressors passage, which is a primary source of entropy generation and loss.
Chuansijia Tao +6 more
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