Detection of Rotor Forced Response Vibrations Using Stationary Pressure Transducers in a Multistage Axial Compressor [PDF]
International Journal of Rotating Machinery, 2015 Blade row interactions in turbomachinery can lead to blade vibrations and even high cycle fatigue. Forced response conditions occur when a forcing function (such as impingement of stator wakes) occurs at a frequency that matches the natural frequency of ...
William L. Murray, Nicole L. Key
doaj +2 more sources
Preliminary design study of advanced multistage axial flow core compressors [PDF]
, 1977 A preliminary design study was conducted to identify an advanced core compressor for use in new high-bypass-ratio turbofan engines to be introduced into commercial service in the 1980's.
Koch, C. C. +2 more
core +2 more sources
Unsteady Kinematics of Multistage Axial Compressor Shrouded Cavity Flows
Proceedings of Global Power & Propulsion Society, 2020 Jaehyoung Lee +6 more
openaire +2 more sources
Impact Investigation of Stator Seal Leakage on Aerodynamic Performance of Multistage Compressor
Frontiers in Energy Research, 2021 In this paper, a numerical model based on the mass flow rate of seal leakage is presented, and a 3D numerical method of a multistage axial compressor with good engineering practicability is established.
Qi Wang +7 more
doaj +1 more source
Stability of Flow Through Multistage Axial Compressors [PDF]
Volume 1: Turbomachinery, 1989 This paper describes measurements of the performance of a research stage operating in isolation and as part of a multistage compressor. It is shown that the stall point and the stalled performance of the stage are properties of the system in which it operates rather than a property of the stage itself. The consequences of this for the estimation of the
J. P. Longley, T. P. Hynes
openaire +1 more source
Flow Field Diagnosis in Multistage Axial Compressors [PDF]
Volume 1: Turbomachinery, 1996 A mathematical model is developed for the flow field diagnosis problem in multistage axial compressors. In view of the ill-posedness of the diagnostic problem, an effective measure is adopted to transfer the diagnostic problem into a variational problem which is solved by a regularization method. Two numerical results demonstrate the rationality of the
J. Liu, Z.-C. Zhang, D.-J. Ye
openaire +1 more source
Modelling variable stator vane setting in multistage axial flow compressors
, 1998 A numerical approach for modelling variable stator stagger in multistage stage axial flow compressors is presented. The development of such an approach has been motivated by the requirements of an optimisation methodology for stator vane setting and active control of instability using controlled stator vane setting.
Jinju Sun
openaire +4 more sources
Effect and Mechanism of Roughness on the Performance of a Five-Stage Axial Flow Compressor
Aerospace, 2022 In order to prolong the service life of multistage axial compressors, it is increasingly important to study the influence of blade surface roughness on the compressor performance.
Yan Chen, Chunxiang Gao, Wuli Chu
doaj +1 more source
Controlled-Endwall-Flow Blading for Multistage Axial Compressor Rotor [PDF]
Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, 1997 This research aims to develop an advanced technology of highly loaded axial compressor stages with high efficiency and sufficient surge margin. To improve endwall boundary layer flows which lead to energy loss and instability at an operation of low flow rate, the Controlled-Endwall-Flow (CEF) rotor blades were designed and tested in the low speed ...
M. Inoue +6 more
openaire +1 more source
Time-domain harmonic balance method for aerodynamic and aeroelastic simulations of turbomachinery flows [PDF]
, 2013 A time-domain Harmonic Balance method is applied to simulate the blade row interactions and vibrations of state- of-the-art industrial turbomachinery configurations. The present harmonic balance approach is a time-integration scheme that turns a periodic
Besicovitch A.S. +5 more
core +1 more source