Measurement and numerical simulation of a small centrifugal compressor characteristics at small or negative flow rate

Kaname Tsukamoto, Mizuki Okada, Yuzo Inokuchi, Nobuhiko Yamasaki, Akihiro Yamagata

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

For centrifugal compressors used in automotive turbochargers, the extension of the surge margin is demanded because of lower engine speed. In order to estimate the surge line exactly, it is required to acquire the compressor characteristics at small or negative flow rate. In this paper, measurement and numerical simulation of the characteristics at small or negative flow rate are carried out. In the measurement, an experimental facility with a valve immediately downstream of the compressor is used to suppress the surge. In the numerical work, a new boundary condition that specifies mass flow rate at the outlet boundary is used to simulate the characteristics around the zero flow rate region. Furthermore, flow field analyses at small or negative flow rate are performed with the numerical results. The separated and re-circulated flow fields are investigated by visualization to identify the origin of losses.

元の言語英語
ページ(範囲)107-112
ページ数6
ジャーナルJournal of Thermal Science
26
発行部数2
DOI
出版物ステータス出版済み - 4 1 2017

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centrifugal compressors
flow velocity
compressors
flow distribution
simulation
turbochargers
mass flow rate
outlets
engines
margins
boundary conditions
estimates

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

これを引用

Measurement and numerical simulation of a small centrifugal compressor characteristics at small or negative flow rate. / Tsukamoto, Kaname; Okada, Mizuki; Inokuchi, Yuzo; Yamasaki, Nobuhiko; Yamagata, Akihiro.

:: Journal of Thermal Science, 巻 26, 番号 2, 01.04.2017, p. 107-112.

研究成果: ジャーナルへの寄稿記事

Tsukamoto, Kaname ; Okada, Mizuki ; Inokuchi, Yuzo ; Yamasaki, Nobuhiko ; Yamagata, Akihiro. / Measurement and numerical simulation of a small centrifugal compressor characteristics at small or negative flow rate. :: Journal of Thermal Science. 2017 ; 巻 26, 番号 2. pp. 107-112.
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