... to their compact size and ability to deliver high-pressure ratios over a wide range of flowrates. Methods to improve compressor efficiency near surge without reducing the surge margin have received considerable interest in the past. In many situations, changes to the impeller blade design and/or diffuser...

... 11 01 2023 09 02 2023 compressor stall surge and operability computational fluid dynamics (CFD) fluid dynamics and heat transfer phenomena in compressor and turbine components of gas turbine engines Office of Naval Research 10.13039/100000006 N000014-18-1-0246...

... by the International Gas Turbine Institute (IGTI) of ASME for publication in the J ournal of T urbomachinery . 17 08 2022 08 01 2023 09 01 2023 09 02 2023 compressor stall surge and operability National Aeronautics and Space Administration 10.13039/100000104 NNX17AH42A...

...Julien Marty; Lionel Castillon; Pierric Joseph The operating range of a compressor is limited by surge or rotating stall line, among others. Numerical simulations must accurately predict these phenomena. This study is based on the experimental compressor CME2, which is a low-subsonic axial...

...Yoshihiro Hayashi; Teng Cao In centrifugal compressors, it is common to observe a rapid reduction in surge margin toward high rotational speed, which shows a non-linear surge characteristic against the change of rotational speed. This paper presents a comprehensive experimental and numerical study...

...Fangyuan Lou; Herbert M. Harrison; Nicole L. Key The identification of stall inception mechanisms and stability-limiting components in a centrifugal compressor is required for the development of effective surge suppression approaches. Part I of this two-part paper investigates the surge signature...

...Fangyuan Lou; Herbert M. Harrison; William J. Brown; Nicole L. Key In the first part of the paper, surge signatures and the underlying mechanisms thereof for a high-speed centrifugal compressor were investigated using signals from fast-response transducers installed along the flow path...

... a rotating stall, which can lead to a full compressor stall or surge. Prince et al. [ 24 ] also found similar results in that both an axial skewed slot treatment and a staggered skewed slot treatment improved (reduced) the stall flowrate by more than 15%, whereas a circumferential groove improved...

... 09 2022 22 09 2022 03 11 2022 Email: skoley1@jhu.edu Email: asarasw3@jhu.edu 1 Corresponding author. Email: katz@jhu.edu boundary layer development compressor stall surge and operability computational fluid dynamics (CFD) measurement techniques...

... = isentropic efficiency Λ = reaction σ = solidity Φ = flow coefficient Ψ = work coefficient ψ ′ = static-pressure rise coefficient compressor stall surge and operability computational fluid dynamics (CFD) fan compressor and turbine aerodynamic design fluid...

... Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the J ournal of T urbomachinery . 16 07 2022 21 08 2022 22 08 2022 19 09 2022 casing treatment compressor stall surge operability Non-uniform flow at the inlet to a turbofan...

... ournal of T urbomachinery . 13 07 2022 15 08 2022 15 08 2022 19 09 2022 compressor stall surge turbulence modeling computational fluid dynamics (CFD) Imperial College London 10.13039/501100000761 01015425 Due to the multiscale nature of compressor...

... stable operation at high incidence conditions, and by the potential for erosion. This paper considers the effect of a damaged LE on transonic fan stability in this context. Department for Business, Innovation and Skills 10.13039/501100004800 113075 compressor stall surge...

... ~ = ( p t − p t i n ) / 1 2 ρ U t i p 2 λ = throttle parameter ρ = density ω r = radial vorticity ω r ~ = ω r /Ω R Ω = angular velocity compressor stall surge operability fan compressor...

... 10.13039/100000006 N00014-18-1-2430 compressor stall surge and operability computational fluid dynamics (CFD) turbulence modeling Reynolds stresses axial casing grooves compressor aerodynamic design 29 08 2021 11 01 2022 11 01 2022 04 03 2022 Contributed...

... that this makes the design of two-dimensional or quasi-three-dimensional transonic compressors and fans “quite challenging” and the design of a two-dimensional cascade at an inlet Mach number of one “a near impossibility.” compressor stall surge and operability computational fluid dynamics (CFD) fan...

... 2021 27 09 2021 05 11 2021 compressor stall surge and operability computational fluid dynamics (CFD) fan compressor Fig. 1 Schematic of different uncertainties in a turbomachinery environment: ( a ) tip gap tolerance, ( b ) leading edge tolerance, ( c ) stagger angle...

...: christoph.brandstetter@ec-lyon.fr 12 07 2021 17 08 2021 18 08 2021 27 09 2021 aeromechanical instabilities compressor stall surge operability nonsynchronous vibration mistuning Cleansky 10.13039/501100000922 864719 Engineering and Physical Sciences Research Council...

... cavity and leaking flows compressor stall surge and operability computational fluid dynamics (CFD) Imperial College London 10.13039/501100000761 01015425 Compressor tip leakage flow plays a dominant role in determining compressor work input, efficiency, and stability [ 1 ]. Due...

... aeromechanical instabilities compressor stall surge operability non-synchronous vibration (NSV) measurement techniques Agence Nationale de la Recherche 10.13039/501100001665 EquipEx PHARE Association Instituts Carnot 10.13039/501100006367 MERIT Cleansky 10.13039/501100000922...