Effect of a curved duct upstream on performance of small centrifugal compressors for automobile turbochargers

Shigeta Kikuchi, Nobuhiko Yamasaki, Akihiro Yamagata

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Since the automobile turbochargers are installed in an engine compartment with limited space, the ducts upstream of the turbocharger compressor may be curved in a complex manner. In the present paper, the effect of a curved duct upstream on performance of small centrifugal compressors for automobile turbochargers is discussed. The computational fluid dynamics (CFD) analysis of a turbocharger compressor validated for the compressor model with the straight pipe applied to the compressor with the curved pipe are executed, and the deterioration of the performance for the curved pipe is confirmed. It is also found that the deterioration of compressor performance is caused by the interaction of the secondary flow and the impeller.

Original languageEnglish
Pages (from-to)92-96
Number of pages5
JournalJournal of Thermal Science
Volume22
Issue number1
DOIs
Publication statusPublished - Feb 1 2013

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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