Numerical simulation of flow inside a modified turbocharger centrifugal compressor

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5 Citations (Scopus)

Abstract

In order to increase the performance of the conventional turbocharger compressor's to boost the pressure into engine. The flow inside a small centrifugal compressor with both single and modified double splitters used as an automotive turbocharger was simulated. Further, the performance of the centrifugal compressor depended on the flow in the impeller and splitters, but the splitters were not continued to the leading edge. If the splitters continued to the leading edge, it would produce sufficient blockage to cause choking at high speed. This research aimed to study and simulate the effect of double splitters on the performance of a turbocharger compressor. The simulation was undertaken using Computational Fluid Dynamics (CFD) analyses on aerodynamic flow field and to predict the mass flow rate and aerodynamic characteristics. The mesh generator of CFD Code was used to generate a polyhedron mesh. According to the results of the simulation, the outlet mass flow rate for a specific speed increased for the compressor with double splitters and all the performance characteristics also increased. It was observed that the turbocharger compressor performance was heavily affected by the impeller design.

Original languageEnglish
Pages (from-to)563-572
Number of pages10
JournalAsian Journal of Applied Sciences
Volume5
Issue number8
DOIs
Publication statusPublished - 2012

Fingerprint

Centrifugal compressors
Compressors
Computer simulation
Aerodynamics
Computational fluid dynamics
Flow rate
Gas generators
Flow fields
Engines

Keywords

  • Centrifugal compressor
  • CFD simulation
  • Flow characteristics
  • Numerical simulation
  • Turbocharger

ASJC Scopus subject areas

  • General

Cite this

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title = "Numerical simulation of flow inside a modified turbocharger centrifugal compressor",
abstract = "In order to increase the performance of the conventional turbocharger compressor's to boost the pressure into engine. The flow inside a small centrifugal compressor with both single and modified double splitters used as an automotive turbocharger was simulated. Further, the performance of the centrifugal compressor depended on the flow in the impeller and splitters, but the splitters were not continued to the leading edge. If the splitters continued to the leading edge, it would produce sufficient blockage to cause choking at high speed. This research aimed to study and simulate the effect of double splitters on the performance of a turbocharger compressor. The simulation was undertaken using Computational Fluid Dynamics (CFD) analyses on aerodynamic flow field and to predict the mass flow rate and aerodynamic characteristics. The mesh generator of CFD Code was used to generate a polyhedron mesh. According to the results of the simulation, the outlet mass flow rate for a specific speed increased for the compressor with double splitters and all the performance characteristics also increased. It was observed that the turbocharger compressor performance was heavily affected by the impeller design.",
keywords = "Centrifugal compressor, CFD simulation, Flow characteristics, Numerical simulation, Turbocharger",
author = "Jawad, {Layth H.} and Shahrir Abdullah and Rozli Zulkifli and {Wan Mahmood}, {Wan Mohd Faizal}",
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AU - Abdullah, Shahrir

AU - Zulkifli, Rozli

AU - Wan Mahmood, Wan Mohd Faizal

PY - 2012

Y1 - 2012

N2 - In order to increase the performance of the conventional turbocharger compressor's to boost the pressure into engine. The flow inside a small centrifugal compressor with both single and modified double splitters used as an automotive turbocharger was simulated. Further, the performance of the centrifugal compressor depended on the flow in the impeller and splitters, but the splitters were not continued to the leading edge. If the splitters continued to the leading edge, it would produce sufficient blockage to cause choking at high speed. This research aimed to study and simulate the effect of double splitters on the performance of a turbocharger compressor. The simulation was undertaken using Computational Fluid Dynamics (CFD) analyses on aerodynamic flow field and to predict the mass flow rate and aerodynamic characteristics. The mesh generator of CFD Code was used to generate a polyhedron mesh. According to the results of the simulation, the outlet mass flow rate for a specific speed increased for the compressor with double splitters and all the performance characteristics also increased. It was observed that the turbocharger compressor performance was heavily affected by the impeller design.

AB - In order to increase the performance of the conventional turbocharger compressor's to boost the pressure into engine. The flow inside a small centrifugal compressor with both single and modified double splitters used as an automotive turbocharger was simulated. Further, the performance of the centrifugal compressor depended on the flow in the impeller and splitters, but the splitters were not continued to the leading edge. If the splitters continued to the leading edge, it would produce sufficient blockage to cause choking at high speed. This research aimed to study and simulate the effect of double splitters on the performance of a turbocharger compressor. The simulation was undertaken using Computational Fluid Dynamics (CFD) analyses on aerodynamic flow field and to predict the mass flow rate and aerodynamic characteristics. The mesh generator of CFD Code was used to generate a polyhedron mesh. According to the results of the simulation, the outlet mass flow rate for a specific speed increased for the compressor with double splitters and all the performance characteristics also increased. It was observed that the turbocharger compressor performance was heavily affected by the impeller design.

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KW - Flow characteristics

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KW - Turbocharger

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