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Keywords: rotating stallClose
Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT35A006, June 7–11, 2021
Paper No: GT2021-58929
...Abstract Abstract Rotating instability (RI) and rotating stall (RS) are two types of aerodynamic instability in axial compressors. The former features the side-by-side peaks below the blade passing frequency (BPF) in frequency spectra, and the latter represents one or more stall cells rotating...
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A010, June 7–11, 2021
Paper No: GT2021-59869
... that occurred 2 impeller outlet on the shroud and hub wall by turns. Finally, the diffuser stall 3 diffuser inlet cell vanishes when it passes the cutoff because mass flow 4 diffuser outlet recovery occurred. Furthermore, the static pressure ahead of the rotating stall decreases because of the merging...
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A020, September 21–25, 2020
Paper No: GT2020-15118
... instability rotating stall EXPERIMENTAL STUDY ON INTERNAL FLOW FIELD OF A HIGH-SPEED CENTRIFUGAL COMPRESSOR AT DIFFERENT ALTITUDES Xinghang Yu1, Hongwei Ma2, Lei Shi1, Lianpeng Zhao1 1School of Energy and Power Engineering, Beihang University, Beijing 100191, China 2National Key Laboratory of Science...
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A020, September 21–25, 2020
Paper No: GT2020-15149
... to show the unsteady signal development in stall inception. The noise attenuation varies in 0.18∼1.6 dB when foam metal is at different locations. Finally, the mechanism and application of the foam metal casing treatment are also discussed. compressor casing treatment rotating stall EFFECT...
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A009, September 21–25, 2020
Paper No: GT2020-14841
.... Impeller dynamic forces are found to scale with the size of the impeller for the same eccentricity ratio and the same flow coefficient. Strength of impeller rotating stalls has dependence on whirl frequency ratio. rotordynamics impeller complete characteristics CFD PAT pump-turbines rotating...
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A073, September 21–25, 2020
Paper No: GT2020-16186
...Abstract Abstract Rotating stall is a natural limit to the stable operating range of compressors due to the inverse pressure gradient of viscous gas. Effective prediction of compressor stall boundary is an important guarantee for the successful development of aeroengine. In this paper, a three...
Proc. ASME. GT2013, Volume 4: Ceramics; Concentrating Solar Power Plants; Controls, Diagnostics and Instrumentation; Education; Electric Power; Fans and Blowers, V004T10A010, June 3–7, 2013
Paper No: GT2013-95269
... beat beating rotating stall processing of the information spectrogram method Investigation of the nature and properties of dynamic processes using different methods of processing of the measured signals may lead to erroneous interpretations and conclusions. One of the reasons...
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 2427-2437, June 11–15, 2012
Paper No: GT2012-68324
... the effect of damaged blades on the compressor performance and stability is important at both the design stage and in service. The damage to compressor blades breaks the cyclic symmetry of the compressor assembly. Thus computations have to be performed using the whole annulus. Moreover, if rotating stall...
Proc. ASME. GT2012, Volume 3: Cycle Innovations; Education; Electric Power; Fans and Blowers; Industrial and Cogeneration, 961-977, June 11–15, 2012
Paper No: GT2012-69133
... Transonic compressor rotor Water tip injection Wet compression Rotating stall Numerical simulation The rotor blade tip leakage flow and associated formation of the tip leakage vortex and interaction of the tip leakage vortex with the shockwave, particularly in the case of a transonic...
Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 481-489, June 14–18, 2010
Paper No: GT2010-22262
...) failure mechanism, and crack initiation was accelerated by corrosion picks on blade surfaces due to high humidity air generated by the fogging system. Stationary vane damage was caused by a rotating stall phenomenon, which generates vibratory stresses in stationary vanes and moving blades during unit...
Proc. ASME. GT2008, Volume 6: Turbomachinery, Parts A, B, and C, 533-542, June 9–13, 2008
Paper No: GT2008-50967
... strength is higher than that of typical SDBD actuators while still remaining within practical achievable limits. These results will form the basis for experimental validation of the concept in the corresponding research compressor rig in the near future. rotating stall spike plasma actuator flow...
Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 267-278, May 14–17, 2007
Paper No: GT2007-27673
... 10 03 2009 This paper proposes and investigates the pioneering use of glow discharge (plasma) actuation to suppress short length-scale (spike) rotating stall inception. A single dielectric barrier discharge plasma actuator basically consists of two parallel offset thin electrodes...
Proc. ASME. GT2002, Volume 5: Turbo Expo 2002, Parts A and B, 353-362, June 3–6, 2002
Paper No: GT2002-30362
...) were determined experimentally. In addition, the phase–location relation permitted determination of the number of stall cells under established rotating stall. Literature on rotating stall in axial compressors typically refers to rotating stall with frequencies less than the rotor speed. This paper...
Proc. ASME. GT2003, Volume 6: Turbo Expo 2003, Parts A and B, 889-899, June 16–19, 2003
Paper No: GT2003-38221
... The number of stall cells and their rotational speed are distinctive features of the rotating stall phenomenon and play an important role in the prediction and analysis of the pressure fields during rotating stall. Various aspects of numbers and speed of stall cells are analyzed using...
Proc. ASME. GT2004, Volume 5: Turbo Expo 2004, Parts A and B, 287-295, June 14–17, 2004
Paper No: GT2004-54072
... and independent of the mechanism of stall inception i.e. for spike-type stall as well as for modal waves. 25 11 2008 axial compressor static wall pressure measurements aerodynamic instability rotating stall surge frequency analysis cepstrum Proceedings of ASME Turbo Expo 2004 Power...
Proc. ASME. GT2005, Volume 6: Turbo Expo 2005, Parts A and B, 1335-1342, June 6–9, 2005
Paper No: GT2005-68445
... Paper reports a numerical study on vaneless diffuser flow instability performed for the purpose of better understanding of rotating stall mechanism in radial vaneless diffusers. This analysis is restricted to the two-dimensional flow where effect of wall boundary layers is neglected. Numerical...
Topics: Vaneless diffusers
Proc. ASME. GT2005, Volume 6: Turbo Expo 2005, Parts A and B, 155-165, June 6–9, 2005
Paper No: GT2005-68374
... A computational study to define the phenomena that lead to the onset of short length-scale (spike) rotating stall disturbances has been carried out. Unsteady simulations show there are two conditions necessary for the formation of spike disturbances, both of which are linked to the tip clearance...
Proc. ASME. GT2006, Volume 6: Turbomachinery, Parts A and B, 1701-1711, May 8–11, 2006
Paper No: GT2006-90214
... The stable operating range of axial compressors is limited by the onset of rotating stall and surge. These flow conditions endanger the reliability of operation and have definitely to be avoided in compressors of gas turbines. However, there is still a need to improve the physical understanding...
Proc. ASME. GT2006, Volume 6: Turbomachinery, Parts A and B, 1723-1732, May 8–11, 2006
Paper No: GT2006-90223
... This paper deals with the first instability which occurs in compressors, close to the maximum of pressure rise, called rotating stall. A numerical simulation of these flow phenomena is performed and a comparison with experimental data is made. The configuration used for the simulation...
Proc. ASME. GT2006, Volume 6: Turbomachinery, Parts A and B, 377-387, May 8–11, 2006
Paper No: GT2006-90947
... compressor acoustic resonance mode trapping cut-off frequency transmission reflection rotating stall rotating instability Proceedings of Insert Conference Abbreviation: ASME Turbo Expo 2006 8-11 May 2006 Barcelona, Spain Proce dings of GT2006 ASME Turbo Expo 2006: Power for Land, Sea and Air May 8...