Results 31 to 40 of about 5,221 (262)

Trapped Acoustic Modes in an Axial Multi-Stage Compressor Leading to Non-Synchronous Blade Vibrations

International Journal of Turbomachinery, Propulsion and Power, 2022
Non-synchronous blade vibrations have been observed in an experimental multi-stage high-speed compressor setup at part-speed conditions. A detailed numerical study has been carried out to understand the observed phenomenon by performing unsteady full ...
Anne-Lise Fiquet, Stéphane Aubert, Nicolas Buffaz, Agathe Vercoutter, Christoph Brandstetter   +4 more
doaj   +1 more source

TAKING INTO ACCOUNT THE BLADES EROSIVE WEAR IN THE MODELING OF CHARACTERISTICS OF THE AIRCRAFT ENGINE MULTISTAGE AXIAL COMPRESSOR

Авіаційно-космічна техніка та технологія, 2017
In developing of methods for diagnostic based on the parameters of the working process of the flow-through part of aviation gas turbine engines, the development of the working process thermogasdynamic model for the engine is the main task.
Елена Серафимовна Барышева, Александр Евгеньевич Дёмин, Роман Леонидович Зеленский   +2 more
doaj   +1 more source

AXIAL FLOW MULTISTAGE COMPRESSOR SURGE LINE DETERMINATION IN PERFORMING CALCULATION STUDIES

Авіаційно-космічна техніка та технологія, 2020
The implementation of the high requirements for modern gas turbine engines depends on the perfection of their components. The reliability of the engine operation is largely determined by the compressor gas-dynamic stability margin.
Вадим Анатольевич Даценко, Александр Евгеньевич Дёмин, Наталия Владимировна Пижанкова   +2 more
doaj   +1 more source

Determining the influence of roughness and tip clearance on the axial multistage compressor characteristics

Авіаційно-космічна техніка та технологія
The operation of gas turbine engines inevitably increases the blade roughness and tip clearance in multistage axial compressors. The result is an increase in its thermogasodynamic parameters. The reason for the increase in the roughness of the blades and
Vadym Datsenko
doaj   +1 more source

Consideration of the effect of manufacturing deviations from the shape of a multistage axial compressor [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
The paper presents the results of influence for manufacturing deviations from the shape of the flow part – cavities obtained during the refinement of the material part of the multistage axial compressor GTE-65.1.
A. S. Zolotukhin, E. I. Davletgareeva, F. A. Malyshev   +2 more
doaj   +1 more source

Lessons Learned for Developing an Effective High-Speed Research Compressor Facility

Aerospace
Few universities in the world conduct experimental research on high-speed, high-power turbomachinery. The Purdue High-Speed Compressor Research Laboratory has a longstanding tradition of partnering with industry sponsors to perform high-TRL (technology ...
Nicholas J. Kormanik, Douglas R. Matthews, Nicole L. Key, Aaron J. King   +3 more
doaj   +1 more source

Experimental and Numerical Analysis of Rotor–Rotor Interaction Characteristics inside a Multistage Transonic Axial Compressor

Energies, 2022
Serving as a key component of the core engine, the high-load axial compressor is expected to have high performance, which determines several critical parameter levels of the aero-engine.
Jiayi Zhao, Qingfei Lu, Dangguo Yang
doaj   +1 more source

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
openaire   +1 more source

Sensitivity Analysis of Multistage Compressor Characteristics Under the Spray Atomization Effect Using a CFD Model

Energies, 2019
In this paper, a CFD model is used to simulate the effect of spray atomization at the compressor inlet on a multistage axial subsonic compressor. Special attention is paid to the change of compressor characteristics with wet compression under different ...
Chunlei Liu, Qun Zheng, Qi Wang, Aqiang Lin, Yuting Jiang, Mingcong Luo   +5 more
doaj   +1 more source

The influence of a coupled casing on the performance of a multistage compressor under inlet distortion conditions

AIP Advances, 2023
In order to increase the stalling margin of a compressor under different inlet conditions, especially under inlet distortion conditions, a new coupled casing processing structure is proposed in this paper.
Hong Xie, Guoming Zhu, Huanjun Li, Chunrong Wang   +3 more
doaj   +1 more source