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   Articles with "centrifugal compressor" as a keyword



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A Review of Rotating Stall in Vaneless Diffuser of Centrifugal Compressor

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recommendations! Published in 2020 at "Journal of Thermal Science"

DOI: 10.1007/s11630-020-1261-y

Abstract: At present, off-design centrifugal compressor suffers from great instabilities, such as rotating stall and surge, which lead to work failure, strong pressure fluctuations, and violent vibrations of the entire system. One cause of these instabilities… read more here.

Keywords: vaneless diffuser; centrifugal compressor; rotating stall;
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Investigation of stall process flow field in transonic centrifugal compressor with volute

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recommendations! Published in 2018 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2018.07.047

Abstract: Abstract Owing to the asymmetric structure of the volute, the internal flow field in a centrifugal compressor is circumferentially non-uniform. Previous studies have paid little attention to whether the circumferentially non-uniform flow field has an… read more here.

Keywords: centrifugal compressor; process; shock wave; flow field ... See more keywords
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Numerical and experimental investigation of flow mechanism and application of tandem-impeller for centrifugal compressor

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recommendations! Published in 2020 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2020.105819

Abstract: Abstract The research on tandem impeller technology for centrifugal compressors has not been conducted in a systematic manner and remains incomplete. The lack of insight regarding the flow structure variations between tandem impellers with different… read more here.

Keywords: tandem impeller; impeller; flow; centrifugal compressor ... See more keywords

Performance enhancement of a centrifugal compressor stage using profiled end wall (PEW) treatments in the radial vaned diffuser

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recommendations! Published in 2021 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2020.106488

Abstract: Abstract Profiled End Wall (PEW) is an effective method that has been employed in recent years in the field of axial flow turbines as a means to reduce secondary flows and associated losses leading to… read more here.

Keywords: compressor; centrifugal compressor; end wall; pew ... See more keywords

Reynolds-number-dependent efficiency characterization of a micro-scale centrifugal compressor using non-conventional working fluids

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recommendations! Published in 2018 at "Energy Conversion and Management"

DOI: 10.1016/j.enconman.2018.09.055

Abstract: Abstract The selection of working fluids other than air is a key issue in improving the efficiency of new thermodynamic cycles intended for low-to-moderate temperature small power plants. The aim of this paper is to… read more here.

Keywords: micro scale; working fluids; reynolds number; centrifugal compressor ... See more keywords

Air Conditioning Cycle Simulations Using a Ultrahigh-Speed Centrifugal Compressor for Electric Vehicle Applications

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recommendations! Published in 2021 at "International Journal of Refrigeration"

DOI: 10.1016/j.ijrefrig.2021.07.030

Abstract: Abstract Electric vehicles (EVs) are an increasingly popular option to decrease global greenhouse emissions in the transportation sector. The largest limiting factor is their range, significantly decreased by the cooling load required. In conjunction with… read more here.

Keywords: speed; centrifugal compressor; air conditioning; ultrahigh speed ... See more keywords

Investigation of mechanisms on leading edge vortex generation and suppression in vaned diffuser of a centrifugal compressor

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recommendations! Published in 2024 at "Physics of Fluids"

DOI: 10.1063/5.0221532

Abstract: This study numerically investigates the mechanisms for generating and suppressing the leading edge vortex (LEV) in a vaned diffuser of a centrifugal compressor, aiming to enhance the compressor's stable operating range. Detailed analyses focus on… read more here.

Keywords: centrifugal compressor; compressor; vaned diffuser; leading edge ... See more keywords

Study of unsteady shear flow near stall in a shrouded supercritical carbon dioxide centrifugal compressor

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recommendations! Published in 2024 at "Physics of Fluids"

DOI: 10.1063/5.0231286

Abstract: This study investigates the unsteady shear flow patterns and their relation with the aerodynamic instability of a shrouded supercritical carbon dioxide (SCO2) centrifugal compressor impeller using the dynamic mode decomposition method combined with detached eddy… read more here.

Keywords: centrifugal compressor; unsteady shear; impeller; shear flow ... See more keywords

Performance optimization mechanisms in a supercritical carbon dioxide centrifugal compressor with micro-blades

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recommendations! Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0272711

Abstract: The supercritical carbon dioxide (sCO2) centrifugal compressor, as a core component of the Brayton power cycle, faces a critical technical challenge in expanding its stable operating range to ensure stable operation of the cycle system.… read more here.

Keywords: micro blade; centrifugal compressor; supercritical carbon; micro ... See more keywords

Multi-objective optimization of aerodynamic performance and internal flow in centrifugal compressor based on neural networks and genetic algorithms

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recommendations! Published in 2025 at "AIP Advances"

DOI: 10.1063/5.0280922

Abstract: In the present work, an optimization method coupled with computational fluid dynamics (CFD), backpropagation (BP) neural networks, and genetic algorithms (GA) is proposed to suppress internal flow and improve the performance of centrifugal compressor. The… read more here.

Keywords: pressure; centrifugal compressor; compressor; performance ... See more keywords

Performance improvement of a centrifugal compressor stage using a wedge diffuser with leading-edge sweep and pre-compression

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recommendations! Published in 2025 at "AIP Advances"

DOI: 10.1063/5.0297528

Abstract: The geometry of the vane's leading-edge (LE) of a wedge diffuser determines the aerodynamic matching between the impeller and diffuser of a centrifugal compressor stage and is crucial for the performance and stable operation range… read more here.

Keywords: diffuser; vane; centrifugal compressor; stage ... See more keywords