Rotor-stator interaction in a centrifugal pump equipped with a vaned diffuser
Abstract This paper provides the results of a detailed flow investigation within a centrifugal pump equipped with a vaned diffuser. The measurements made with a laser Doppler velocimeter were carried out at two operating points. Unsteady velocity measurements obtained in phase with the impeller angu...
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| Veröffentlicht in: | Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy Journal of power and energy, 2001-01, Vol.215 (6), p.809-817 |
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| container_title | Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy |
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| creator | El Hajem, M Akhras, A Champagne, J. Y. Morel, R |
| description | Abstract
This paper provides the results of a detailed flow investigation within a centrifugal pump equipped with a vaned diffuser. The measurements made with a laser Doppler velocimeter were carried out at two operating points. Unsteady velocity measurements obtained in phase with the impeller angular position gave access to the relative flow within the impeller channels. Measurements were obtained in the impeller and the diffuser at different measuring planes relative to the diffuser vanes. Results are presented as animations reconstituting a temporal evolution of the flow permitting a better comprehension of the complex flow structure existing between the two interacting blade rows. The analysis of the relative flow field indicates the presence of a jet wake structure. The wake is characterized by low relative velocities localized in the suction side-shroud corner. At the design flowrate, the presence of the vanes seems to have a limited effect on the impeller flow structure, except when the suction side of the blades is facing the diffuser vanes. At the impeller discharge, the time-resolved sequences show that the mixing process of the unsteady and periodic flow leaving the impeller is affected by the presence of the diffuser. |
| doi_str_mv | 10.1243/0957650011538947 |
| format | Article |
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This paper provides the results of a detailed flow investigation within a centrifugal pump equipped with a vaned diffuser. The measurements made with a laser Doppler velocimeter were carried out at two operating points. Unsteady velocity measurements obtained in phase with the impeller angular position gave access to the relative flow within the impeller channels. Measurements were obtained in the impeller and the diffuser at different measuring planes relative to the diffuser vanes. Results are presented as animations reconstituting a temporal evolution of the flow permitting a better comprehension of the complex flow structure existing between the two interacting blade rows. The analysis of the relative flow field indicates the presence of a jet wake structure. The wake is characterized by low relative velocities localized in the suction side-shroud corner. At the design flowrate, the presence of the vanes seems to have a limited effect on the impeller flow structure, except when the suction side of the blades is facing the diffuser vanes. At the impeller discharge, the time-resolved sequences show that the mixing process of the unsteady and periodic flow leaving the impeller is affected by the presence of the diffuser.</description><identifier>ISSN: 0957-6509</identifier><identifier>EISSN: 2041-2967</identifier><identifier>DOI: 10.1243/0957650011538947</identifier><language>eng</language><publisher>London, England: SAGE Publications</publisher><subject>Applied sciences ; Energy ; Energy. Thermal use of fuels ; Engines and turbines ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Exact sciences and technology</subject><ispartof>Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy, 2001-01, Vol.215 (6), p.809-817</ispartof><rights>2001 Institution of Mechanical Engineers</rights><rights>2002 INIST-CNRS</rights><rights>Copyright Mechanical Engineering Publications, Ltd. 2001</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c367t-2717777bcfa8e71cb1e304cb770cd4327a91643f311a21a14c67d0e707d512fa3</citedby><cites>FETCH-LOGICAL-c367t-2717777bcfa8e71cb1e304cb770cd4327a91643f311a21a14c67d0e707d512fa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://journals.sagepub.com/doi/pdf/10.1243/0957650011538947$$EPDF$$P50$$Gsage$$H</linktopdf><linktohtml>$$Uhttps://journals.sagepub.com/doi/10.1243/0957650011538947$$EHTML$$P50$$Gsage$$H</linktohtml><link.rule.ids>314,780,784,21819,27924,27925,43621,43622</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13430385$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>El Hajem, M</creatorcontrib><creatorcontrib>Akhras, A</creatorcontrib><creatorcontrib>Champagne, J. Y.</creatorcontrib><creatorcontrib>Morel, R</creatorcontrib><title>Rotor-stator interaction in a centrifugal pump equipped with a vaned diffuser</title><title>Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy</title><description>Abstract
This paper provides the results of a detailed flow investigation within a centrifugal pump equipped with a vaned diffuser. The measurements made with a laser Doppler velocimeter were carried out at two operating points. Unsteady velocity measurements obtained in phase with the impeller angular position gave access to the relative flow within the impeller channels. Measurements were obtained in the impeller and the diffuser at different measuring planes relative to the diffuser vanes. Results are presented as animations reconstituting a temporal evolution of the flow permitting a better comprehension of the complex flow structure existing between the two interacting blade rows. The analysis of the relative flow field indicates the presence of a jet wake structure. The wake is characterized by low relative velocities localized in the suction side-shroud corner. At the design flowrate, the presence of the vanes seems to have a limited effect on the impeller flow structure, except when the suction side of the blades is facing the diffuser vanes. At the impeller discharge, the time-resolved sequences show that the mixing process of the unsteady and periodic flow leaving the impeller is affected by the presence of the diffuser.</description><subject>Applied sciences</subject><subject>Energy</subject><subject>Energy. 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Y. ; Morel, R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c367t-2717777bcfa8e71cb1e304cb770cd4327a91643f311a21a14c67d0e707d512fa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Applied sciences</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Engines and turbines</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Exact sciences and technology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>El Hajem, M</creatorcontrib><creatorcontrib>Akhras, A</creatorcontrib><creatorcontrib>Champagne, J. 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Part A, Journal of power and energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>El Hajem, M</au><au>Akhras, A</au><au>Champagne, J. Y.</au><au>Morel, R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rotor-stator interaction in a centrifugal pump equipped with a vaned diffuser</atitle><jtitle>Proceedings of the Institution of Mechanical Engineers. Part A, Journal of power and energy</jtitle><date>2001-01-01</date><risdate>2001</risdate><volume>215</volume><issue>6</issue><spage>809</spage><epage>817</epage><pages>809-817</pages><issn>0957-6509</issn><eissn>2041-2967</eissn><abstract>Abstract
This paper provides the results of a detailed flow investigation within a centrifugal pump equipped with a vaned diffuser. The measurements made with a laser Doppler velocimeter were carried out at two operating points. Unsteady velocity measurements obtained in phase with the impeller angular position gave access to the relative flow within the impeller channels. Measurements were obtained in the impeller and the diffuser at different measuring planes relative to the diffuser vanes. Results are presented as animations reconstituting a temporal evolution of the flow permitting a better comprehension of the complex flow structure existing between the two interacting blade rows. The analysis of the relative flow field indicates the presence of a jet wake structure. The wake is characterized by low relative velocities localized in the suction side-shroud corner. At the design flowrate, the presence of the vanes seems to have a limited effect on the impeller flow structure, except when the suction side of the blades is facing the diffuser vanes. At the impeller discharge, the time-resolved sequences show that the mixing process of the unsteady and periodic flow leaving the impeller is affected by the presence of the diffuser.</abstract><cop>London, England</cop><pub>SAGE Publications</pub><doi>10.1243/0957650011538947</doi><tpages>9</tpages></addata></record> |
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| subjects | Applied sciences Energy Energy. Thermal use of fuels Engines and turbines Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology |
| title | Rotor-stator interaction in a centrifugal pump equipped with a vaned diffuser |
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