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Optimized Preliminary Design of a Multistage Low-Speed Axial FLow Compressor
2021 3rd Novel Intelligent and Leading Emerging Sciences Conference (NILES), 2021This 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 +2 more
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Simulation of Surge Inception and Performance of Axial Multistage Compressor
Volume 6: Turbomachinery, Parts A and B, 2006This 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 +2 more
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Optimization of a Multistage Axial Compressor Stochastic Approach
Volume 1: Turbomachinery, 1992A procedure of a multistage axial compressor (MAC) parameters optimization in stochastic setting has been offered. The procedure allows to obtain a stable solution from the point of view of its practical realization. A concept of robustness (stability) of turbomachine optimum design has been introduced, and the criteria of stability degree evaluation ...
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A Methodology for Variable Geometry Optimization of Multistage Axial Compressors
Volume 2A: Turbomachinery, 2017This paper presents a procedure for experimentally optimizing a multistage axial compressor. Due to the usual proprietary nature of such tests, a mean-line model of a nine-stage compressor with three rows of variable geometry is used instead of a real machine as a testbed for explaining the optimization method.
M. Eric Lyall +3 more
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Axisymmetrically Stalled Flow Performance for Multistage Axial Compressors
Journal of Turbomachinery, 1986A study of the stalled flow performance of multistage axial compressors is presented. A proposal is made regarding the form of axisymmetric pumping performance in stall (which is a requisite of current rotating stall models) over the entire compressor flow range, including reversed flow. It is also shown that the axisymmetric performance can rise above
S. G. Koff, E. M. Greitzer
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Attenuation of circumferential inlet distortion in multistage axial compressors.
Journal of Aircraft, 1968Circumferential inlet distortion in a high hub-tip ratio multistage machine is treated by analyzing the compressor as a region in which a large number of small stages produce a pressure rise that is a function of the local mass flow rate. The resistance to circumferential flow due to the blading is included through an empirical factor. It is found that
G. A. PLOURDE, A. H. STENNING
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Full annulus simulation on a multistage axial-centrifugal combined compressor
Proceedings of Global Power & Propulsion Society, 2023Axial-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
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Numerical Simulation of Particulates in Multi-Stage Axial Compressors
Volume 2A: Turbomachinery, 2016Aircraft engines ingest airborne particulate matter, such as sand, dirt, and volcanic ash, into their core. The ingested particulate is transported by the secondary flow circuits via compressor bleeds to the high pressure turbine and may deposit resulting in turbine fouling and loss of cooling effectiveness.
Swati Saxena +3 more
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Conceptual Cost Estimation of Multistage Axial Compressor Modules
Volume 14: Design, Systems, and Complexity, 2019Abstract 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 ...
Michele Germani +4 more
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Case wall pressures in a multistage axial compressor with tip clearance variation
Journal of Propulsion and Power, 1996Large cyclical pressure excursions from stator-averaged values are observed on the suction side of a rotor blade at the case wall in a multistage compressor as the rotor moves relative to the stator. The pressure changes correlate well with stator relative position, occur in the passage away from the blade, and are only slightly modified by tip ...
Moyle, I.N., Shreeve, R.P., Walker, G.J.
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