Measurement and Numerical Simulation of a Small Centrifugal Compressor Characteristics at Small or Negative Flow Rate
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...
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| Veröffentlicht in: | Journal of thermal science 2017-04, Vol.26 (2), p.107-112 |
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| container_title | Journal of thermal science |
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| creator | Tsukamoto, Kaname Okada, Mizuki Inokuchi, Yuzo Yamasaki, Nobuhiko Yamagata, Akihiro |
| description | 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. |
| doi_str_mv | 10.1007/s11630-017-0917-8 |
| format | Article |
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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. 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Therm. Sci</addtitle><addtitle>Journal of Thermal Science</addtitle><description>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.</description><subject>Boundary conditions</subject><subject>Centrifugal compressors</subject><subject>Classical and Continuum Physics</subject><subject>Engineering Fluid Dynamics</subject><subject>Engineering Thermodynamics</subject><subject>Heat and Mass Transfer</subject><subject>Mass flow rate</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>小流量</subject><subject>数值模拟</subject><subject>流量特性</subject><subject>测量</subject><subject>离心压气机</subject><subject>离心压缩机</subject><subject>质量流率</subject><subject>边界条件</subject><issn>1003-2169</issn><issn>1993-033X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kFFLwzAUhYsoOKc_wLegz9Wbpm2SRylOhTnBKfgWsvR262ibLWkV_70ZG-KTLzcX8p1zuCeKLincUAB-6ynNGcRAeQwyDHEUjaiULAbGPo7DDsDihObyNDrzfg2Q85ylo2h4Ru0Hhy12PdFdSWZDi642uiHzuh0a3de2I7Yimsxb3TSkCKCrq2EZiMK2G4feW0eKlXba9EHq-9p4ovsDH_5muAw2n0gmjf0ir7rH8-ik0o3Hi8M7jt4n92_FYzx9eXgq7qaxYSnr44WoTEYXKEohU2HSJOMaWFmFK5OMGcxQUM0XyQK4rMpwkMQKS6MTZiTPRcnG0fXed-PsdkDfq7UdXBciFRUCeCppBoGie8o4673DSm1c3Wr3rSioXbtq364KuWrXrhJBk-w1PrDdEt0f539EV4egle2W26D7Tco5zSiINGM_oKyJsQ</recordid><startdate>20170401</startdate><enddate>20170401</enddate><creator>Tsukamoto, Kaname</creator><creator>Okada, Mizuki</creator><creator>Inokuchi, Yuzo</creator><creator>Yamasaki, Nobuhiko</creator><creator>Yamagata, Akihiro</creator><general>Science Press</general><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20170401</creationdate><title>Measurement and Numerical Simulation of a Small Centrifugal Compressor Characteristics at Small or Negative Flow Rate</title><author>Tsukamoto, Kaname ; Okada, Mizuki ; Inokuchi, Yuzo ; Yamasaki, Nobuhiko ; Yamagata, Akihiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-b8fc51be8d8948c4257a03df017253ce5e81a7b2b079fd7639efedca23c9768d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Boundary conditions</topic><topic>Centrifugal compressors</topic><topic>Classical and Continuum Physics</topic><topic>Engineering Fluid Dynamics</topic><topic>Engineering Thermodynamics</topic><topic>Heat and Mass Transfer</topic><topic>Mass flow rate</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>小流量</topic><topic>数值模拟</topic><topic>流量特性</topic><topic>测量</topic><topic>离心压气机</topic><topic>离心压缩机</topic><topic>质量流率</topic><topic>边界条件</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tsukamoto, Kaname</creatorcontrib><creatorcontrib>Okada, Mizuki</creatorcontrib><creatorcontrib>Inokuchi, Yuzo</creatorcontrib><creatorcontrib>Yamasaki, Nobuhiko</creatorcontrib><creatorcontrib>Yamagata, Akihiro</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><jtitle>Journal of thermal science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tsukamoto, Kaname</au><au>Okada, Mizuki</au><au>Inokuchi, Yuzo</au><au>Yamasaki, Nobuhiko</au><au>Yamagata, Akihiro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement and Numerical Simulation of a Small Centrifugal Compressor Characteristics at Small or Negative Flow Rate</atitle><jtitle>Journal of thermal science</jtitle><stitle>J. 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| subjects | Boundary conditions Centrifugal compressors Classical and Continuum Physics Engineering Fluid Dynamics Engineering Thermodynamics Heat and Mass Transfer Mass flow rate Physics Physics and Astronomy 小流量 数值模拟 流量特性 测量 离心压气机 离心压缩机 质量流率 边界条件 |
| title | Measurement and Numerical Simulation of a Small Centrifugal Compressor Characteristics at Small or Negative Flow Rate |
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