2016年6月1日
Multi-point optimization of recirculation flow type casing treatment in centrifugal compressors
Journal of Thermal Science
- ,
- 巻
- 25
- 号
- 3
- 開始ページ
- 231
- 終了ページ
- 241
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s11630-016-0855-x
- 出版者・発行元
- SCIENCE PRESS
© 2016, Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag Berlin Heidelberg. High-pressure ratio and wide operating range are highly required for a turbocharger in diesel engines. A recirculation flow type casing treatment is effective for flow range enhancement of centrifugal compressors. Two ring grooves on a suction pipe and a shroud casing wall are connected by means of an annular passage and stable recirculation flow is formed at small flow rates from the downstream groove toward the upstream groove through the annular bypass. The shape of baseline recirculation flow type casing is modified and optimized by using a multi-point optimization code with a metamodel assisted evolutionary algorithm embedding a commercial CFD code CFX from ANSYS. The numerical optimization results give the optimized design of casing with improving adiabatic efficiency in wide operating flow rate range. Sensitivity analysis of design parameters as a function of efficiency has been performed. It is found that the optimized casing design provides optimized recirculation flow rate, in which an increment of entropy rise is minimized at grooves and passages of the rotating impeller.
- リンク情報
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- DOI
- https://doi.org/10.1007/s11630-016-0855-x
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000375514500005&DestApp=WOS_CPL
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84976384407&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84976384407&origin=inward
- ID情報
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- DOI : 10.1007/s11630-016-0855-x
- ISSN : 1003-2169
- eISSN : 1993-033X
- SCOPUS ID : 84976384407
- Web of Science ID : WOS:000375514500005