Results 31 to 40 of about 18,174 (265)

Flow Field Diagnosis in Multistage Axial Compressors [PDF]

open access: yesVolume 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
Zhen Zhang, Dajun Ye, Jing Liu
openaire   +2 more sources

Inter-Stage Dynamic Performance of an Axial Compressor of a Twin-Shaft Industrial Gas Turbine

open access: yesMachines, 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
doaj   +1 more source

Dust Ingestion in a Rotorcraft Engine Compressor: Experimental and Numerical Study of the Fouling Rate

open access: yesAerospace, 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
doaj   +1 more source

TURBOSHAFT ENGINE THERMOGASDYNAMIC PARAMETERS CALCULATION METHOD BASED ON BLADE-TO BLADE DESCRIPTION OF TURBOMASHINES. PART II. STAGE AND MULTISTAGE COMPRESSORS PARAMETERS DETERMINATION

open access: yesАвіаційно-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
doaj   +1 more source

TO THE OPTIMUM DESIGN OF THE AXIAL MULTI-STAGE COMPRESSOR

open access: yesАвіаційно-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
doaj   +1 more source

Design Optimization of a Multistage Axial Flow Compressor Based on Full-Blade Surface Parameterization and Phased Strategy

open access: yesInternational Journal of Aerospace Engineering, 2021
A new design optimization method is proposed for the problem of high-precision aerodynamic design of multistage axial compressors. The method mainly contains three aspects: full-blade surface parametrization can significantly reduce the number of control
Jinxin Cheng   +3 more
doaj   +1 more source

An Investigation of Spanwise Mixing in Multistage Axial Flow Compressors [PDF]

open access: yesVolume 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
openaire   +2 more sources

Exploration of Flow Instability Characteristics in a Two-Stage Axial-Flow Compressor via Numerical Simulation Method

open access: yesMachines, 2023
A four-blade-passage numerical model was developed for a two-stage axial-flow compressor with an inlet guide vane (IGV) for the purpose of studying the steady and dynamic characteristics of the compressor approaching its stability limit.
Tong Wang, Xiangyuan Dou, Yongwen Liu
doaj   +1 more source

Aerodynamic design and numerical simulation of mixed-axial flow multi-stage compressor

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] The performance of a gas turbine engine can be determined by the performance of the compressor. As one of the core components of a gas turbine engine,the design of the compressor is of critical importance in the design of the engine overall.[
ZHANG Xiaoyang   +3 more
doaj   +1 more source

Effect and Mechanism of Roughness on the Performance of a Five-Stage Axial Flow Compressor

open access: yesAerospace, 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

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