An Investigation of Compressor Map Width Enhancement and a Detailed Analysis of Inducer Flow Field

S. Sivagnanasundaram; Stephen Spence; Juliana Early; B. Nikpour

doi:10.1080/1023697X.2010.10668208

An Investigation of Compressor Map Width Enhancement and a Detailed Analysis of Inducer Flow Field

S. Sivagnanasundaram, Stephen Spence, Juliana Early, B. Nikpour

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

34 Downloads (Pure)

Abstract

This paper describes an investigation of various shroud bleed slot configurations of a centrifugal compressor using CFD with a manual multi-block structured grid generation method. The compressor under investigation is used in a turbocharger application for a heavy duty diesel engine of approximately 400 hp. The baseline numerical model has been developed and validated against experimental performance measurements. The influence of the bleed slot flow field on a range of operating conditions between surge and choke has been analysed in detail.
The impact of the returning bleed flow on the incidence at the impeller blade leading edge due to its mixing with the main through-flow has also been studied. From the baseline geometry, a number of modifications to the bleed slot width have been proposed, and a detailed comparison of the flow characteristics performed. The impact of slot variations on the inlet incidence angle has been investigated, highlighting the improvement in surge and choked flow capability. Along with this, the influence of the bleed slot on stabilising the blade passage flow by the suction of the tip and over-tip vortex flow by the slot has been considered near surge.

Original language	English
Pages (from-to)	23-30
Number of pages	8
Journal	HKIE Transactions
Volume	17
Issue number	4
DOIs	https://doi.org/10.1080/1023697X.2010.10668208
Publication status	Published - Dec 2010

Bibliographical note

This paper was awarded the Outstanding Paper Award for Young Engineers/Researchers 2010 by the Hong Kong Institute of Engineers

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1080/1023697X.2010.10668208

Fingerprint Dive into the research topics of 'An Investigation of Compressor Map Width Enhancement and a Detailed Analysis of Inducer Flow Field'. Together they form a unique fingerprint.

Cite this

@article{b0cc86e3975c41f7a66e936510631605,

title = "An Investigation of Compressor Map Width Enhancement and a Detailed Analysis of Inducer Flow Field",

abstract = "This paper describes an investigation of various shroud bleed slot configurations of a centrifugal compressor using CFD with a manual multi-block structured grid generation method. The compressor under investigation is used in a turbocharger application for a heavy duty diesel engine of approximately 400 hp. The baseline numerical model has been developed and validated against experimental performance measurements. The influence of the bleed slot flow field on a range of operating conditions between surge and choke has been analysed in detail. The impact of the returning bleed flow on the incidence at the impeller blade leading edge due to its mixing with the main through-flow has also been studied. From the baseline geometry, a number of modifications to the bleed slot width have been proposed, and a detailed comparison of the flow characteristics performed. The impact of slot variations on the inlet incidence angle has been investigated, highlighting the improvement in surge and choked flow capability. Along with this, the influence of the bleed slot on stabilising the blade passage flow by the suction of the tip and over-tip vortex flow by the slot has been considered near surge.",

author = "S. Sivagnanasundaram and Stephen Spence and Juliana Early and B. Nikpour",

note = "This paper was awarded the Outstanding Paper Award for Young Engineers/Researchers 2010 by the Hong Kong Institute of Engineers",

year = "2010",

month = dec,

doi = "10.1080/1023697X.2010.10668208",

language = "English",

volume = "17",

pages = "23--30",

journal = "HKIE Transactions",

issn = "1023-697X",

publisher = "Hong Kong Institution of Engineers",

number = "4",

}

TY - JOUR

T1 - An Investigation of Compressor Map Width Enhancement and a Detailed Analysis of Inducer Flow Field

AU - Sivagnanasundaram, S.

AU - Spence, Stephen

AU - Early, Juliana

AU - Nikpour, B.

N1 - This paper was awarded the Outstanding Paper Award for Young Engineers/Researchers 2010 by the Hong Kong Institute of Engineers

PY - 2010/12

Y1 - 2010/12

N2 - This paper describes an investigation of various shroud bleed slot configurations of a centrifugal compressor using CFD with a manual multi-block structured grid generation method. The compressor under investigation is used in a turbocharger application for a heavy duty diesel engine of approximately 400 hp. The baseline numerical model has been developed and validated against experimental performance measurements. The influence of the bleed slot flow field on a range of operating conditions between surge and choke has been analysed in detail. The impact of the returning bleed flow on the incidence at the impeller blade leading edge due to its mixing with the main through-flow has also been studied. From the baseline geometry, a number of modifications to the bleed slot width have been proposed, and a detailed comparison of the flow characteristics performed. The impact of slot variations on the inlet incidence angle has been investigated, highlighting the improvement in surge and choked flow capability. Along with this, the influence of the bleed slot on stabilising the blade passage flow by the suction of the tip and over-tip vortex flow by the slot has been considered near surge.

AB - This paper describes an investigation of various shroud bleed slot configurations of a centrifugal compressor using CFD with a manual multi-block structured grid generation method. The compressor under investigation is used in a turbocharger application for a heavy duty diesel engine of approximately 400 hp. The baseline numerical model has been developed and validated against experimental performance measurements. The influence of the bleed slot flow field on a range of operating conditions between surge and choke has been analysed in detail. The impact of the returning bleed flow on the incidence at the impeller blade leading edge due to its mixing with the main through-flow has also been studied. From the baseline geometry, a number of modifications to the bleed slot width have been proposed, and a detailed comparison of the flow characteristics performed. The impact of slot variations on the inlet incidence angle has been investigated, highlighting the improvement in surge and choked flow capability. Along with this, the influence of the bleed slot on stabilising the blade passage flow by the suction of the tip and over-tip vortex flow by the slot has been considered near surge.

U2 - 10.1080/1023697X.2010.10668208

DO - 10.1080/1023697X.2010.10668208

M3 - Article

VL - 17

SP - 23

EP - 30

JO - HKIE Transactions

JF - HKIE Transactions

SN - 1023-697X

IS - 4

ER -