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dc.contributor.authorChehhat, Abdelmadjid
dc.contributor.authorSi-Ameur, Mohamed
dc.contributor.authorBoumeddane, Boussad
dc.contributor.authorAbo-Serie, Essam
dc.contributor.authorBoulahrouz, Salim
dc.identifier.citationApplied and Computational Mechanics. 2016, vol. 10, no. 2, p. 79-96.en
dc.identifier.issn1802-680X (Print)
dc.identifier.issn2336-1182 (Online)
dc.description.abstractLow solidity diffuser in centrifugal compressors can achieve both high efficiency and wide operating ranges which is of great importance for turbocharger compressor. Low solidity is achieved by using a low chord to pitch ratio. In this work, a CFD simulation is carried out to examine the effect of solidity on airflow field of a turbocharger centrifugal compressor which consists of a simple-splitter impeller and a vaned diffuser. By changing the number of diffuser vanes while keeping the number of impeller blades constant, the solidity value of the diffuser is varied. The characteristics of the compressor are evaluated for 6, 8, 10 and 12 stator vanes which correspond to solidity of: 0.78, 1.04, 1.29 and 1.55, respectively. The spatial distribution of the pressure, velocity and turbulent kinetic energy show that the diffuser solidity has significant effect on flow field and compressor performance map. The compressor with a 6 vanes diffuser has higher efficiency and operates at a wider range of flow rate relative to that obtainedwith larger vans number.However a non-uniform flow at the compressor exit was observedwith relatively high turbulent kinetic energy.en
dc.format18 s.
dc.publisherUniversity of West Bohemiaen
dc.relation.ispartofseriesApplied and Computational Mechanicsen
dc.rights© 2016 University of West Bohemia. All rights reserved.en
dc.subjectCFD analýzacs
dc.subjectpevnost difúzerucs
dc.subjectturbulentní prouděnícs
dc.subjectlopatkový difúzercs
dc.titleNumerical investigation of diffuser solidity effect on turbulent airflow and performance of the turbocharger compressoren
dc.subject.translatedCFD analysisen
dc.subject.translatedsolidity diffuseren
dc.subject.translatedturbulent flowen
dc.subject.translatedvaned diffuseren
Appears in Collections:Volume 10, number 2 (2016)
Volume 10, number 2 (2016)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/22411

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