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Keywords: Casing Treatment
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Proceedings Papers

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A040, June 13–17, 2022
Paper No: GT2022-83374
... Abstract In transonic axial compressors of gas turbines, casing treatments (CTs) have the capability to improve the stability and delay stall. A full comprehension of the stall mechanism is essential to design a beneficial CT. Tip stall is a prerequisite. Most CT investigations and publications...
Proceedings Papers

Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A027, June 13–17, 2022
Paper No: GT2022-82342
... Abstract With the help of the dynamic mode decomposition (DMD) analysis, the unsteady effects of casing treatment on tip flow structures in a subsonic compressor rotor were numerically studied. Taking the change of casing treatment geometric parameters into account, the frequency...
Proceedings Papers

Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A017, June 13–17, 2022
Paper No: GT2022-82368
... nozzleless radial turbine high cycle fatigue blade vibration alleviation casing treatment Abstract High cycle fatigue (HCF) is the most common form of blade failure in nozzleless radial turbines. Current studies related to blade vibration alleviation focus on redesign of blade...
Proceedings Papers

Proc. ASME. GT2022, Volume 5: Education; Electric Power; Fans and Blowers, V005T10A017, June 13–17, 2022
Paper No: GT2022-82966
...Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82966 EXPERIMENTAL STUDY ON THE SURFACE GEOMETRY OF FOAM-METAL CASING TREATMENT Yuqing Wang1, Dakun Sun1,3, Jia Li1, Jinming Zhang1, Xu Dong2...
Proceedings Papers

Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A024, June 13–17, 2022
Paper No: GT2022-82828
... Abstract Recently, a kind of foam metal casing treatment (FMCT) was proposed and tested in a low-speed axial compressor. It was found that the FMCT performed well in both stall margin improvement and noise emission reduction of the compressor. The result is beneficial to the future advanced...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A020, September 21–25, 2020
Paper No: GT2020-15149
...EFFECT OF THE FOAM METAL CASING TREATMENT ON A LOW-SPEED AXIAL COMPRESSOR Jia Li, Dakun Sun, Reize Xu, Xu Dong, Xiaofeng Sun Beihang University, Beijing,China ABSTRACT Foam metal is a foam-like substance made out of metal and can be used in flow control, vibration damping and acoustic absorption...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A012, September 21–25, 2020
Paper No: GT2020-14321
...Abstract Abstract Casing treatment (CT) has proven to be an effective way to enhance stability, and has a very important role in enhancing the stability of the compressor. Researchers have made great achievements and progress in the study of single-type CT structure, but less research...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A021, September 21–25, 2020
Paper No: GT2020-14545
... The parametric numerical study was performed to explore the effect of radial skew angles of blade angle slot casing treatment(CT) on the stability and performance of an axial flow subsonic compressor. Five kinds of blade slot casing treatment with difference radial skew angles (0 degree, 30 degrees, 45 degrees...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A039, September 21–25, 2020
Paper No: GT2020-14955
...Experimental Investigations on the Effect of Slot-Type Casing Treatments with the Aim of Improvement the Aerodynamic and Acoustic Characteristics of Advanced Fans Victor Mileshin, Sergey Markov, Vladimir Korzhnev, Iurii Khaletskii Central Institute of Aviation Motors, Moscow, Russia Abstract...
Topics: Acoustics, Fans
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A065, September 21–25, 2020
Paper No: GT2020-16019
...Effect of Sloped Trench Casing Treatment on Performance and Stability of Axial Compressors HOU Jiexuan1, LIU Yangwei1,2,* 1 National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics, School of Energy and Power Engineering, Beihang University Beijing, 100191, China 2...
Proceedings Papers

Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A041, September 21–25, 2020
Paper No: GT2020-14974
... of the peak blockage location. The paper also discusses the prospects of a multi-groove casing configuration. Keywords: Stall margin improvement, axial compressor, casing treatment NOMENCLATURE Tip axial chord H Groove height i grid cell LE Leading edge m Mass flow rate N Total number of grid cells in a plane...
Topics: Compressors
Proceedings Papers

Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T10A007, September 21–25, 2020
Paper No: GT2020-15229
..., casing treatment, compressor stall, CFD NOMENCLATURE A through flow area c rotor blade tip chord h width of the rotor blade tip gap H rotor blade span k turbulence kinetic energy L nominal distance from the hub to the inner casing endwall pexit static pressure at stator outlet pin static pressure at IGV...
Proceedings Papers

Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 189-198, May 14–17, 2007
Paper No: GT2007-27581
... 10 03 2009 A casing treatment with axial and radial skewed slots ending in a plenum chamber has experimentally been investigated at a highly subsonic axial compressor stage. The aim was to investigate the physical phenomenon of this treatment family that is responsible...
Topics: Compressors
Proceedings Papers

Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 199-208, May 14–17, 2007
Paper No: GT2007-27582
... 10 03 2009 A casing treatment with axial and radial skewed slots ending in a plenum chamber has numerically been investigated at a highly subsonic axial compressor stage. The aim was to understand the physical phenomena of this treatment family that are responsible...
Proceedings Papers

Proc. ASME. GT2006, Volume 6: Turbomachinery, Parts A and B, 1049-1057, May 8–11, 2006
Paper No: GT2006-90400
... was reduced by about 53% almost without deterioration of the impeller efficiency in the whole flow rate range. Casing Treatment Centrifugal Impeller Surge Range Enhancement Inlet Recirculation Proceedings of GT2006 ASME Turbo Expo 2006: Power for Land, Sea and Air in di ha at th sh re se th de...