Results 11 to 20 of about 201 (191)
The Investigation of the Stability for Multistage Axial Compressors [PDF]
Volume 1: Aircraft Engine; Turbomachinery, 1985 The “actuator-delay-volume” is used as a physical model for stages of compressors instead of “actuator-lumped volume” model to predict the stability of multistage compressors. The stall line of a multistage compressor is predicted with these two models respectively.
Diyi Tang, Wenlan Li, Mengzi Cong
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Analysis Methods for Aerodynamic Instability Detection on a Multistage Axial Compressor
International Journal of Aerospace Engineering, 2021 In order to detect the aerodynamic instability of a multistage axial compressor more accurately and earlier, the harmonic Fourier mean amplitude analysis method and heterotopic variance analysis method are developed.
Baofeng Tu +4 more
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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
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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
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A throughflow-based optimization method for multi-stage axial compressor
AIP Advances, 2021 A multi-objective optimization tool for multi-stage axial compressors is developed based on an automatically calibrated throughflow method. The Euler-based throughflow equations with blade force terms are solved using a time-marching finite volume method
Cancan Li, Jiaqi Luo, Zuoli Xiao
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Inter-Stage Dynamic Performance of an Axial Compressor of a Twin-Shaft Industrial Gas Turbine
Machines, 2020 In this study, the inter-stage dynamic performance of a multistage axial compressor is simulated through a semi-empirical model constructed in the Matlab Simulink environment.
Samuel Cruz-Manzo +3 more
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Авіаційно-космічна техніка та технологія, 2019 Gas Turbine Engine (GTE) operating characteristics such as thrust (or power), specific fuel consumption and other cycle parameters on different regimes, can be determined by engine modeling and applying correspondent calculation method.
Людмила Георгиевна Бойко +2 more
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Aerospace, 2021 Helicopters often operate in dusty sites, ingesting huge amounts of contaminants during landing, take-off, hover-taxi, and ground operations. In specific locations, the downwash of the rotor may spread soil particles from the ground into the environment ...
Alessandro Vulpio +3 more
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An Investigation of Spanwise Mixing in Multistage Axial Flow Compressors [PDF]
Volume 1: Turbomachinery, 1992 An equation system has been deduced for meridional throughflow fields of multistage axial flow compressors, presenting different kinds of spanwise mixing effects of the fields in a unified form. The spanwise mixing in compressors is caused by three kinds of effects, molecular motion, turbulent diffusion, and circumferential non–uniformities, the last ...
S.-M. Li, M.-Z. Chen
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TO THE OPTIMUM DESIGN OF THE AXIAL MULTI-STAGE COMPRESSOR
Авіаційно-космічна техніка та технологія, 2017 The work is devoted to the development of an integrated approach to the aerodynamic improvement of the blade vanes of multistage axial compressors of gas turbine engines.
Владимир Петрович Герасименко +1 more
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