CFD simulation of pulsation noise in a small centrifugal compressor with volute and resonance tube

Daich Wakaki, Yuta Sakuka, Yuzo Inokuchi, Kosuke Ueda, Nobuhiko Yamasaki, Akihiro Yamagata

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The rotational frequency tone noise emitted from the automobile turbocharger is called the pulsation noise. The cause of the pulsation noise is not fully understood, but is considered to be due to some manufacturing errors, which is called the mistuning. The effects of the mistuning of the impeller blade on the noise field inside the flow passage of the compressor are numerically investigated. Here, the flow passage includes the volute and duct located downstream of the compressor impeller. Our numerical approach is found to successfully capture the wavelength of the pulsation noise at given rotational speeds by the comparison with the experiments. One of the significant findings is that the noise field of the pulsation noise in the duct is highly one-dimensional although the flow fields are highly three-dimensional.

Original languageEnglish
Pages (from-to)24-29
Number of pages6
JournalJournal of Thermal Science
Volume24
Issue number1
DOIs
Publication statusPublished - Jan 1 2015

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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