Effect of vaned diffuser on a modified turbocharger centrifugal compressor performance

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A numerical study that was made in a three-dimensional flow, carried out in a modified centrifugal compressor, having vaned diffuser stage, used as an automotive turbo charger. In order to study the influence of vaned diffuser meridional outlet section with a different width ratio of the modified centrifugal compressor. Moreover, the performance of the centrifugal compressor was dependent on the proper matching between the compressor impeller along the vaned diffuser. The aerodynamic characteristics were compared under different meridional width ratio. In addition, the velocity vectors in diffuser flow passages, and the secondary flow in cross-section near the outlet of diffuser were analysed in detail under different meridional width ratio. Another aim of this research was to study and simulate the effect of vaned diffuser on the performance of a centrifugal compressor. The simulation was undertaken using commercial software so-called ANSYS CFX, to predict numerically the performance charachteristics. The results were generated from CFD and were analysed for better understanding of the fluid flow through centrifugal compressor stage and as a result of the minimum width ratio the flow in diffuser passage tends to be uniformity. Moreover, the backflow and vortex near the pressure surface disappear, and the vortex and detachment near the suction surface decrease. Conclusively, it was observed that the efficiency was increased and both the total pressure ratio and static pressure for minimum width ratio are increased.

Original languageEnglish
Title of host publicationApplied Mechanics and Materials
PublisherTrans Tech Publications Ltd
Pages347-353
Number of pages7
Volume663
ISBN (Print)9783038352617
DOIs
Publication statusPublished - 2014
Event2nd International Conference on Recent Advances in Automotive Engineering and Mobility Research, ReCAR 2013 - Kuala Lumpur
Duration: 16 Dec 201318 Dec 2013

Publication series

NameApplied Mechanics and Materials
Volume663
ISSN (Print)16609336
ISSN (Electronic)16627482

Other

Other2nd International Conference on Recent Advances in Automotive Engineering and Mobility Research, ReCAR 2013
CityKuala Lumpur
Period16/12/1318/12/13

Fingerprint

Centrifugal compressors
Vortex flow
Secondary flow
Compressors
Flow of fluids
Aerodynamics
Computational fluid dynamics

Keywords

  • Centrifugal Compressor
  • CFD
  • Turbocharger
  • Vaned Diffuser

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Jawad, L. H., Abdullah, S., Zulkifli, R., & Wan Mahmood, W. M. F. (2014). Effect of vaned diffuser on a modified turbocharger centrifugal compressor performance. In Applied Mechanics and Materials (Vol. 663, pp. 347-353). (Applied Mechanics and Materials; Vol. 663). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/AMM.663.347

Effect of vaned diffuser on a modified turbocharger centrifugal compressor performance. / Jawad, Layth H.; Abdullah, Shahrir; Zulkifli, Rozli; Wan Mahmood, Wan Mohd Faizal.

Applied Mechanics and Materials. Vol. 663 Trans Tech Publications Ltd, 2014. p. 347-353 (Applied Mechanics and Materials; Vol. 663).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jawad, LH, Abdullah, S, Zulkifli, R & Wan Mahmood, WMF 2014, Effect of vaned diffuser on a modified turbocharger centrifugal compressor performance. in Applied Mechanics and Materials. vol. 663, Applied Mechanics and Materials, vol. 663, Trans Tech Publications Ltd, pp. 347-353, 2nd International Conference on Recent Advances in Automotive Engineering and Mobility Research, ReCAR 2013, Kuala Lumpur, 16/12/13. https://doi.org/10.4028/www.scientific.net/AMM.663.347
Jawad LH, Abdullah S, Zulkifli R, Wan Mahmood WMF. Effect of vaned diffuser on a modified turbocharger centrifugal compressor performance. In Applied Mechanics and Materials. Vol. 663. Trans Tech Publications Ltd. 2014. p. 347-353. (Applied Mechanics and Materials). https://doi.org/10.4028/www.scientific.net/AMM.663.347
Jawad, Layth H. ; Abdullah, Shahrir ; Zulkifli, Rozli ; Wan Mahmood, Wan Mohd Faizal. / Effect of vaned diffuser on a modified turbocharger centrifugal compressor performance. Applied Mechanics and Materials. Vol. 663 Trans Tech Publications Ltd, 2014. pp. 347-353 (Applied Mechanics and Materials).
@inproceedings{b256c1f06a7b4193808e9224d7ac7138,
title = "Effect of vaned diffuser on a modified turbocharger centrifugal compressor performance",
abstract = "A numerical study that was made in a three-dimensional flow, carried out in a modified centrifugal compressor, having vaned diffuser stage, used as an automotive turbo charger. In order to study the influence of vaned diffuser meridional outlet section with a different width ratio of the modified centrifugal compressor. Moreover, the performance of the centrifugal compressor was dependent on the proper matching between the compressor impeller along the vaned diffuser. The aerodynamic characteristics were compared under different meridional width ratio. In addition, the velocity vectors in diffuser flow passages, and the secondary flow in cross-section near the outlet of diffuser were analysed in detail under different meridional width ratio. Another aim of this research was to study and simulate the effect of vaned diffuser on the performance of a centrifugal compressor. The simulation was undertaken using commercial software so-called ANSYS CFX, to predict numerically the performance charachteristics. The results were generated from CFD and were analysed for better understanding of the fluid flow through centrifugal compressor stage and as a result of the minimum width ratio the flow in diffuser passage tends to be uniformity. Moreover, the backflow and vortex near the pressure surface disappear, and the vortex and detachment near the suction surface decrease. Conclusively, it was observed that the efficiency was increased and both the total pressure ratio and static pressure for minimum width ratio are increased.",
keywords = "Centrifugal Compressor, CFD, Turbocharger, Vaned Diffuser",
author = "Jawad, {Layth H.} and Shahrir Abdullah and Rozli Zulkifli and {Wan Mahmood}, {Wan Mohd Faizal}",
year = "2014",
doi = "10.4028/www.scientific.net/AMM.663.347",
language = "English",
isbn = "9783038352617",
volume = "663",
series = "Applied Mechanics and Materials",
publisher = "Trans Tech Publications Ltd",
pages = "347--353",
booktitle = "Applied Mechanics and Materials",

}

TY - GEN

T1 - Effect of vaned diffuser on a modified turbocharger centrifugal compressor performance

AU - Jawad, Layth H.

AU - Abdullah, Shahrir

AU - Zulkifli, Rozli

AU - Wan Mahmood, Wan Mohd Faizal

PY - 2014

Y1 - 2014

N2 - A numerical study that was made in a three-dimensional flow, carried out in a modified centrifugal compressor, having vaned diffuser stage, used as an automotive turbo charger. In order to study the influence of vaned diffuser meridional outlet section with a different width ratio of the modified centrifugal compressor. Moreover, the performance of the centrifugal compressor was dependent on the proper matching between the compressor impeller along the vaned diffuser. The aerodynamic characteristics were compared under different meridional width ratio. In addition, the velocity vectors in diffuser flow passages, and the secondary flow in cross-section near the outlet of diffuser were analysed in detail under different meridional width ratio. Another aim of this research was to study and simulate the effect of vaned diffuser on the performance of a centrifugal compressor. The simulation was undertaken using commercial software so-called ANSYS CFX, to predict numerically the performance charachteristics. The results were generated from CFD and were analysed for better understanding of the fluid flow through centrifugal compressor stage and as a result of the minimum width ratio the flow in diffuser passage tends to be uniformity. Moreover, the backflow and vortex near the pressure surface disappear, and the vortex and detachment near the suction surface decrease. Conclusively, it was observed that the efficiency was increased and both the total pressure ratio and static pressure for minimum width ratio are increased.

AB - A numerical study that was made in a three-dimensional flow, carried out in a modified centrifugal compressor, having vaned diffuser stage, used as an automotive turbo charger. In order to study the influence of vaned diffuser meridional outlet section with a different width ratio of the modified centrifugal compressor. Moreover, the performance of the centrifugal compressor was dependent on the proper matching between the compressor impeller along the vaned diffuser. The aerodynamic characteristics were compared under different meridional width ratio. In addition, the velocity vectors in diffuser flow passages, and the secondary flow in cross-section near the outlet of diffuser were analysed in detail under different meridional width ratio. Another aim of this research was to study and simulate the effect of vaned diffuser on the performance of a centrifugal compressor. The simulation was undertaken using commercial software so-called ANSYS CFX, to predict numerically the performance charachteristics. The results were generated from CFD and were analysed for better understanding of the fluid flow through centrifugal compressor stage and as a result of the minimum width ratio the flow in diffuser passage tends to be uniformity. Moreover, the backflow and vortex near the pressure surface disappear, and the vortex and detachment near the suction surface decrease. Conclusively, it was observed that the efficiency was increased and both the total pressure ratio and static pressure for minimum width ratio are increased.

KW - Centrifugal Compressor

KW - CFD

KW - Turbocharger

KW - Vaned Diffuser

UR - http://www.scopus.com/inward/record.url?scp=84922022088&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84922022088&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/AMM.663.347

DO - 10.4028/www.scientific.net/AMM.663.347

M3 - Conference contribution

AN - SCOPUS:84922022088

SN - 9783038352617

VL - 663

T3 - Applied Mechanics and Materials

SP - 347

EP - 353

BT - Applied Mechanics and Materials

PB - Trans Tech Publications Ltd

ER -