Results 21 to 30 of about 674 (262)
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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Nihon Kikai Gakkai ronbunshu, 2023 Using a high-speed multistage scale model compressor simulating a middle stage of a gas turbine compressor for power generation, the effects of 3 types of rotor tip clearances on performance and operating range, and the vortex structure of rotor tip ...
Ryosuke SEKI
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Effect of Non-Uniformity of Rotor Stagger Angle on the Stability of a Low-Speed Axial Compressor
Energies, 2022 It is well known that variations in stagger angle between rotor blades affect compressor performance. In this paper, the stagger angle of blade No. 8 is increased or decreased by six degrees for non-uniformity, and the influence of rotor non-uniformity ...
Shuai Ma, Jun Hu, Xuegao Wang, Jiajia Ji
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Stall Inception and Development in an Axial Flow Aeroengine [PDF]
Journal of Turbomachinery, 1993 This paper describes the phenomenon of stall and surge in an axial flow aeroengine using fast response static pressure measurements from the compressor of a Rolls-Royce VIPER engine. It details the growth of flow instability at various speeds, from a small zone of stalled fluid involving only a few blades into the violent surge motion of the entire ...
Alexander G. Wilson, Chris Freeman
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Stall Inception in a Boundary Layer Ingesting Fan [PDF]
Volume 2A: Turbomachinery, 2015 Jet engines with Boundary Layer Ingestion (BLI) could offer significant reductions in aircraft fuel burn compared with podded turbofans. However, the engine fans must run continuously with severe inlet distortion, which is known to reduce stability. In this paper an experimental study has been completed on a low-speed rig fan operating with a BLI-type ...
Perovic, D, Hall, CA, Gunn, EJ
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Energies, 2021 In this paper, an experimental study was carried out on the rotating instability in an axial compressor subjected to inlet steady paired swirl distortion.
Rong Xu +4 more
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Numerical Study on the Acoustic Characteristics of an Axial Fan under Rotating Stall Condition
Energies, 2017 Axial fan is an important piece of equipment in the thermal power plant that provides enough air for combustion of coal. This paper focuses on the aerodynamic noise characteristics of an axial fan in the development from stall inception to stall cells ...
Lei Zhang +4 more
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Experimental Examination of an Axial Compressor as a Basis for an Active Stall Avoidance System
International Journal of Rotating Machinery, 2000 A single-stage subsonic compressor was examined with respect to compressor instabilities. During the inception of rotating stall, the transients of the pressure rise and mass flow were measured as well as their hysteresis.
Richard Schulze +3 more
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Advances in Mechanical Engineering, 2019 Rotating stall is a common instability phenomenon that occurs in turbomachinery. Rotating stall 3D instability can be characterized as one or more stall cells rotating at a fraction of rotor velocity.
Lei Zhang +3 more
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An Investigation of Stall Inception in Centrifugal Compressor Vaned Diffusers [PDF]
Volume 7: Turbomachinery, Parts A, B, and C, 2011 In compression systems the stable operating range is limited by rotating stall and/or surge. Two distinct types of stall precursors can be observed prior to full scale instability: the development of long-wavelength modal waves or a short-wavelength, three-dimensional flow breakdown (so-called “spike” stall inception).
Everitt, Jonathan Neil +1 more
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