Výsledky vyhledávání - "Lee Galloway"

Akademický článek

Assessment of turbulence model predictions for a centrifugal compressor simulation

Autor: Lee Gibson, Lee Galloway, Sung in Kim, Stephen Spence

Publikováno v: Journal of the Global Power and Propulsion Society, Vol 1, Iss 1 (2017)

Steady-state computational fluid dynamics (CFD) simulations are an essential tool in the design process of centrifugal compressors. Whilst global parameters, such as pressure ratio and efficiency, can be predicted with reasonable accuracy, the accura

Externí odkaz: https://doaj.org/article/ddd277bd55654cca8f3c1851c6036ef0

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Numerical and experimental investigation of a radially reduced diffuser design concept for a centrifugal compressor performance at design point

Autor: Laura McLaughlin, Stephen Spence, Daniel Rusch, Lee Galloway, Marco Geron, Kwok Kai So, Magnus Fischer

Publikováno v: McLaughlin, L, Spence, S, Rusch, D, Galloway, L, Geron, M, Kai So, K & Fischer, M 2022, ' Numerical and experimental investigation of a radially reduced diffuser design concept for a centrifugal compressor performance at design point. ', Aerospace Science and Technology, vol. 126, 107590 . https://doi.org/10.1016/j.ast.2022.107590

Large scale, high pressure ratio (PR) centrifugal compressors are commonly made up of a radial impeller with a vaned diffuser. In research to date, the majority of research and design has focused on extending the operating range or improving the comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::321ded2fc7f1f6e4a0d8f4e1bd3dec10
https://pure.qub.ac.uk/en/publications/6bcf17b4-8ddb-4f2f-bc68-34950ad8d53f

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Aerodynamic Design Optimization of a Variable Geometry Nozzle Vane For Automotive Turbochargers

Autor: Jongyoon Park, Sejong Yoo, Sung In Kim, Lee Galloway, Seong Kwon

Publikováno v: Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions.

An aerodynamic design optimization study of the nozzle vane of a variable geometry turbine (VGT) turbocharger for a diesel engine application was conducted using the commercial software, ANSYS CFX and DesignXplorer. The nozzle design was optimized at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3cc58dae0a71c7c5c38520f15cfad5e1
https://doi.org/10.1115/gt2021-59616

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High Dimensional Matching Optimization of Impeller–Vaned Diffuser Interaction for a Centrifugal Compressor Stage

Autor: Stephen Spence, Ruihong Qin, Chuhua Zhang, Lee Galloway, Yaping Ju

Publikováno v: Journal of Turbomachinery. 142

The matching and interaction between the impeller and vaned diffuser is the most important aerodynamic-coupling between the components of a high-speed centrifugal compressor. Many research studies have been carried out during the last decade, both ex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44d8e000295ba917fc8e4522d89060ec
https://doi.org/10.1115/1.4047898

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

Autor: Wuli Chu, Jinhua Lang, Lee Galloway, Stephen Spence, Guangyao An

Publikováno v: Aerospace Science and Technology. 110:106488

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 improved efficiency. However, the application of end wall

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::43ae4f2302962a1e94553ddf1e3b99e5
https://doi.org/10.1016/j.ast.2020.106488

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An Investigation of Centrifugal Compressor Stability Enhancement Using a Novel Vaned Diffuser Recirculation Technique

Autor: René Hunziker, Klemens Vogel, Daniel Rusch, Sung In Kim, Stephen Spence, Lee Galloway

Publikováno v: Journal of Turbomachinery. 140

The main centrifugal compressor performance criteria are pressure ratio, efficiency, and wide flow range. The relative importance of these criteria, and therefore the optimum design balance, varies between different applications. Vaned diffusers are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::681cd664924668bad1e7b0d41645c5e7
https://doi.org/10.1115/1.4041601

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An Investigation of the Stability Enhancement of a Centrifugal Compressor Stage Using a Porous Throat Diffuser

Autor: René Hunziker, Sung In Kim, Daniel Rusch, Stephen Spence, Klemens Vogel, Lee Galloway

Publikováno v: Volume 2C: Turbomachinery.

The stable operating range of a centrifugal compressor stage of an engine turbocharger is limited at low mass flow rates by aerodynamic instabilities which can lead to the onset of rotating stall or surge. There have been many techniques employed to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::943209ce4bb91379e661320a86437869
https://doi.org/10.1115/gt2017-63071

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