Results 141 to 150 of about 201 (191)

Research On The Application Of Similarity Principle For Multistage Axial Compressor

Proceedings of Global Power & Propulsion Society, 2022
Low-speed model fabrication is an effective testing method for deep understanding flow characteristics with low cost and low risk, so it is extensively used in design and optimization of high speed and small scale compressors. Reynolds number, Euler number and Strouhal number are demanded to retain constant for exact similarity method.
Hong Xie, Bo Yang, Shuyi Zhang, Moru Song, Guoming Zhu   +4 more
openaire   +1 more source

Conceptual Cost Estimation of Multistage Axial Compressor Modules

Volume 14: Design, Systems, and Complexity, 2019
Abstract Development of product architectures is a fundamental task in the conceptual design of complex products such as axial compressor of gas turbines. The definition of cost-effective architectures results from the introduction of conceptual cost estimation models aiming at the assessment of economical performances of different ...
Favi C., Campi F., Mandolini M., Martinelli I., Germani M.   +4 more
openaire   +2 more sources

The Development of a Multistage Axial Compressor Research Facility

47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011
Recent renovations to the Purdue 3-stage axial compressor research facility have led to improved inlet flow to the facility and expanded driveline capabilities. The original layout included a front-driven compressor, which led to challenges with uniformity of inlet air temperature and velocity profiles.
John Brossman, Natalie Smith, Anton Talalayev, Nicole Key   +3 more
openaire   +1 more source

Unsteady Effects in Axial Compressors: A Multistage Simulation

Journal of Propulsion and Power, 2013
This work presents a numerical simulation of a four-stage axial compressor with cantilevered stators and repeating stages. Two simulations have been accomplished, namely, unsteady with sliding plane and steady with mixing plane, over a wide range of operating conditions.
Montomoli, F, Naylor, E, Hodson, HP, Lapworth, L   +3 more
openaire   +3 more sources

The nature of wakes in multistage axial flow compressors

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 1999
This paper describes the measurement and processing of unsteady turbulence data from a multistage low-speed compressor. In this study, a two-element hot-wire probe was traversed along a circumferential path downstream of the third rotor row of a large-scale low-speed four-stage facility. Simultaneous circumferential and axial velocity measurements were
S Read, R. L. Elder
openaire   +1 more source

Axial Location of Casing Treatment in Multistage Axial Flow Compressors

Volume 6: Turbo Expo 2005, Parts A and B, 2005
Koch in Ref. 1 presented a procedure for estimating the maximum pressure rise potential of axial flow compressor stages. When used in conjunction with a stage stacking off-design performance prediction method, it can indicate which stage is likely to be responsible for stalling a multistage compressor.
Junqiang Zhu, Yanhui Wu, Wuli Chu
openaire   +1 more source

Optimized Preliminary Design of a Multistage Low-Speed Axial FLow Compressor

2021 3rd Novel Intelligent and Leading Emerging Sciences Conference (NILES), 2021
This paper proposes a technique based on a MAT-LAB code capable of getting an optimized preliminary design of an efficient low-speed compressor qualified for laboratory experiments with relatively low cost. The code was made to design five repeated compressor stages on two steps conducted iteratively, namely “mean line and radial design” to determine ...
AbdelRahman Ahmed Kamal, Alyaa Abdelnaby Thabet, Mohamed M. A. Elnabawy   +2 more
openaire   +1 more source

Facing the Challenges in CFD Modelling of Multistage Axial Compressors

Volume 2B: Turbomachinery, 2017
Multistage axial compressors have always been a great challenge for designers since the flow within these kind of machines, subjected to severe diffusion, is usually characterized by complex and widely developed 3D structures, especially next to the endwalls. The development of reliable numerical tools capable of providing an accurate prediction of the
COZZI, LORENZO, RUBECHINI, FILIPPO, MARCONCINI, MICHELE, ARNONE, ANDREA, Astrua, P, Schneider, A, Silingardi, A.   +6 more
openaire   +2 more sources

Full annulus simulation on a multistage axial-centrifugal combined compressor

Proceedings of Global Power & Propulsion Society, 2023
Axial-centrifugal combined compressors are widely used in small and medium aero-engines. This study aims to investigate the performance and flow characteristics of a multistage axial-centrifugal compressor using annulus unsteady simulation. The compressor comprises three axial stages and one radial stage, including the inlet and outlet guide vanes. The
Cheng Tian, Song Fu
openaire   +1 more source

Simulation of Surge Inception and Performance of Axial Multistage Compressor

Volume 6: Turbomachinery, Parts A and B, 2006
This work concerns transient multistage turbomachine modeling. The main application is the simulation of off-design regimes and unstable situations (essentially surge). Two specific approaches are developed: the first is a simple and fast model, based on a simplification of actuator disk model (0D).
Tauveron, Nicolas, Ferrand, Pascal, Leboeuf, Francis   +2 more
openaire   +2 more sources