... compressor stall surge and operability fan compressor aerodynamic design turbomachinery blading design It is well known that the aerodynamic design of multistage transonic compressor rotors is incredibly difficult. The reason is that as the blade relative inlet Mach number approaches unity...

...Fanzhou Zhao; Jose Moreno; John Dodds; Mehdi Vahdati In this paper an efficient numerical strategy for computational fluid dynamics (CFD) simulation of surge events in a three-shaft engine compression system is presented. Numerical results are compared against measured data and the sources...

... rotating stall centrifugal compressors and pumps compressor stall surge and operability It is common to observe that centrifugal compressor pressure rise characteristic has a sudden pressure loss. It causes a slope change of the characteristic, rolling over from “−”ve to “+”ve at high-speed...

...Ben Zhao; Teng Zhou; Ce Yang Surge is a crucial problem for achieving a good working range of centrifugal compressor and power cycle safety. Effective and early detection of the surge is essential to avoid its onset. In this paper, experiments measuring the pressure and acoustic signals have been...

...Ryosuke Seki; Toshihiko Azuma; Junji Iwatani; Akihiro Nakaniwa; Hidetaka Okui; Takanori Shibata In this article, an unsteady tip leakage flow instability is identified and investigated for an axial compressor at near-surge conditions. We describe the results of experimental verification of a new...

... 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...

.... Email: katz@jhu.edu Contributed 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...

... 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...

...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...

... urbomachinery . 09 08 2022 05 10 2022 05 10 2022 07 11 2022 compressor stall surge operability fan compressor turbomachinery blading design casing treatment Compressor designers are generally required to achieve two main aerodynamic objectives which often conflict...

... compressor stall surge and operability computational fluid dynamics (CFD) measurement techniques 14 08 2022 22 09 2022 22 09 2022 03 11 2022 Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the J ournal of T urbomachinery . 1...

... to rise in the reaction by 5% (from 50% reaction to 55% reaction) and the compressor with the maximum operating range is found to rise in the reaction by 15% (from 50% reaction to 65% reaction). compressor stall surge and operability computational fluid dynamics (CFD) fan compressor and turbine...

...–Stokes (RANS) simulations of compressor near-stall flows. References [1] Day , I. J. , 2016 , “ Stall, Surge, and 75 Years of Research ,” ASME J. Turbomach. , 138 ( 1 ), p. 011001 . 10.1115/1.4031473 [2] Denton , J. D. , 2010 , “ Some Limitations of Turbomachinery CFD...

..., such as those found in boundary layer ingestion [ 2 ] and low-observability military installations [ 3 ]. casing treatment compressor stall surge operability 16 07 2022 21 08 2022 22 08 2022 19 09 2022 Contributed by the International Gas Turbine Institute (IGTI...

... 2022 compressor stall surge and operability computational fluid dynamics fan, and compressor aerodynamic design Department for Business, Innovation and Skills 10.13039/501100004800 113075 The importance of leading edge (LE) geometry to the performance and stable...

... [1] Greitzer , E. M. , 1981 , “ The Stability of Pumping Systems—The 1980 Freeman Scholar Lecture ,” ASME J. Fluids Eng. , 103 ( 2 ), pp. 193 – 242 . 10.1115/1.3241725 [2] Day , I. J. , 1993 , “ Active Suppression of Rotating Stall and Surge in Axial Compressors ,” ASME J...

...: hchen98@jhu.edu 1 Corresponding author. Email: katz@jhu.edu Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the J ournal of T urbomachinery . 29 08 2021 11 01 2022 11 01 2022 04 03 2022 compressor stall surge...