...Vittorio Michelassi; Corrado Burberi; Satish Koyyalamudi; Salvatore Lorusso; Alberto Scotti Del Greco Modern multistage axial compressors are designed for high aerodynamic loading and wide range with front stages rotor inlet relative Mach number above one over a large portion of span. Rotor shock...

...: xuxbchn@buaa.edu.cn 20 06 2022 28 10 2023 30 10 2023 16 11 2023 blade roughness controlled diffusion airfoil planar cascade blade geometry sensitivity axial compressor boundary layer development fluid dynamics and heat transfer phenomena in compressor and turbine...

...Jannik Petermann; Kevin Schulz; Bernd Becker; Volker Gümmer The aerodynamic impact of hub gap leakage on the performance characteristics of an axial compressor rotor in conventional design (no blisk) with a high hub-to-tip ratio has been investigated using three-dimensional steady-state Reynolds...

... 06 2021 17 06 2021 19 04 2022 axial compressor tandem blades secondary flow Allianz Industrie Forschung 10.13039/501100002723 19268 Forschungsvereinigung Verbrennungskraftmaschinen 10.13039/501100003162 1261 Tandem blades are a possible means...

...Zeyuan Yang; Yadong Wu; Hua Ouyang 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...

...A. F. Mustaffa; V. Kanjirakkad The stability limit of a tip-stalling axial compressor is sensitive to the magnitude of the near-casing blockage. In transonic compressors, the presence of the passage shock could be a major cause for the blockage. Identification and elimination of this blockage could...

...Jie Tian; Zonghan Sun; Xiaopu Zhang; Hua Ouyang A signal reconstruction algorithm based on the compressed sensing (CS) theory with dual-uniform sampling point (DUSP) distribution is developed and applied to identify the azimuthal mode of axial compressor. A regular failure signal pattern is found...

...R. Emmrich; H. Hönen; R. Niehuis 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...

... measurement laser Doppler anemometry pressure sensors rotors stators turbomachinery vortices wakes axial compressor laser Doppler anemometer periodical unsteady flow field unsteady profile pressure rotor-stator-interaction tip clearance vortex wake negative jet effect wake-tip clearance...

... effects remains constant around the circumference. 05 06 2007 10 09 2007 31 07 2008 blades compressors jets laser Doppler anemometry pressure sensors rotors stators vortices wakes axial compressor laser Doppler anemometer periodical unsteady flow field unsteady...

...Bernd Hellmich; Joerg R. Seume Nonharmonic acoustic resonance was detected in the static pressure and sound signals in a four-stage high-speed axial compressor when the compressor was operating close to the surge limit. Based on prior research reported in the literature and measurements...

.... The water-to-air ratio was the most important parameter to achieve effective online washing. 01 10 2004 01 02 2005 08 01 2007 jet engines aerospace testing aircraft maintenance aerospace test facilities cleaning compressor cleaning axial compressor stage characteristics GE J85...

...Ronald Mailach; Konrad Vogeler 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 definitely have to be avoided in compressors of gas turbines. However, there is still a need to improve...

... Strategies , Apr., 1981. Suder , K. L. , Chima , R. V. , Strazisar , A. J. , and Roberts , W. B. , 1994 , “ The Effect of Adding Roughness and Thickness to a Transonic Axial Compressor Rotor ,” ASME J. Turbomach. , 117 , pp. 491 – 505 . Roberts , W. B. , 1995 , “ Advanced...