PIV measurement of the attached plane jet velocity field at a high turbulence intensity level in a room
The behaviour of an attached plane jet at high turbulence intensity (>20%) is not completely understood, especially at relatively low Reynolds numbers (
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| Veröffentlicht in: | The International journal of heat and fluid flow 2010-10, Vol.31 (5), p.897-908 |
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| container_title | The International journal of heat and fluid flow |
| container_volume | 31 |
| creator | Cao, Guangyu Sivukari, Markku Kurnitski, Jarek Ruponen, Mika |
| description | The behaviour of an attached plane jet at high turbulence intensity (>20%) is not completely understood, especially at relatively low Reynolds numbers ( |
| doi_str_mv | 10.1016/j.ijheatfluidflow.2010.04.008 |
| format | Article |
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This study focuses on the detailed mean and instantaneous jet flow field using the particle image velocimetry (PIV) measurement technique in a full-scale climate chamber. Three isothermal conditions at different Reynolds numbers based on the jet slot height and slot average velocity, 960, 1320 and 1680, were measured, having a turbulence intensity of 44%, 30% and 22%, respectively. The results show that the measured jet velocity was able to match the earlier empirical turbulent jet results when the turbulence intensity was of the order of 40%. Incomplete self-similarity occurs when the turbulence intensity is less than 30%. After a few slot heights downstream from the jet slot, most of the data of the jet at the Reynolds number 960 present self-similarity characteristics.</description><identifier>ISSN: 0142-727X</identifier><identifier>EISSN: 1879-2278</identifier><identifier>DOI: 10.1016/j.ijheatfluidflow.2010.04.008</identifier><identifier>CODEN: IJHFD2</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Applied sciences ; Attached plane jet ; Building technical equipments ; Buildings ; Buildings. Public works ; Environmental engineering ; Exact sciences and technology ; Fluid dynamics ; Fluid flow ; Fundamental areas of phenomenology (including applications) ; Instrumentation for fluid dynamics ; Jet velocity ; Jets ; Physics ; PIV ; Planes ; Reynolds number ; Self-similarity ; Turbulence ; Turbulence intensity ; Turbulent flow ; Turbulent flows, convection, and heat transfer ; Ventilation. Air conditioning</subject><ispartof>The International journal of heat and fluid flow, 2010-10, Vol.31 (5), p.897-908</ispartof><rights>2010 Elsevier Inc.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c395t-7529aa694456cd41610a23c251ab4e3ac189daf5448e86e348b0384473dea423</citedby><cites>FETCH-LOGICAL-c395t-7529aa694456cd41610a23c251ab4e3ac189daf5448e86e348b0384473dea423</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ijheatfluidflow.2010.04.008$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23208145$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Cao, Guangyu</creatorcontrib><creatorcontrib>Sivukari, Markku</creatorcontrib><creatorcontrib>Kurnitski, Jarek</creatorcontrib><creatorcontrib>Ruponen, Mika</creatorcontrib><title>PIV measurement of the attached plane jet velocity field at a high turbulence intensity level in a room</title><title>The International journal of heat and fluid flow</title><description>The behaviour of an attached plane jet at high turbulence intensity (>20%) is not completely understood, especially at relatively low Reynolds numbers (<2000) in a room. This study focuses on the detailed mean and instantaneous jet flow field using the particle image velocimetry (PIV) measurement technique in a full-scale climate chamber. Three isothermal conditions at different Reynolds numbers based on the jet slot height and slot average velocity, 960, 1320 and 1680, were measured, having a turbulence intensity of 44%, 30% and 22%, respectively. The results show that the measured jet velocity was able to match the earlier empirical turbulent jet results when the turbulence intensity was of the order of 40%. Incomplete self-similarity occurs when the turbulence intensity is less than 30%. After a few slot heights downstream from the jet slot, most of the data of the jet at the Reynolds number 960 present self-similarity characteristics.</description><subject>Applied sciences</subject><subject>Attached plane jet</subject><subject>Building technical equipments</subject><subject>Buildings</subject><subject>Buildings. Public works</subject><subject>Environmental engineering</subject><subject>Exact sciences and technology</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Instrumentation for fluid dynamics</subject><subject>Jet velocity</subject><subject>Jets</subject><subject>Physics</subject><subject>PIV</subject><subject>Planes</subject><subject>Reynolds number</subject><subject>Self-similarity</subject><subject>Turbulence</subject><subject>Turbulence intensity</subject><subject>Turbulent flow</subject><subject>Turbulent flows, convection, and heat transfer</subject><subject>Ventilation. Air conditioning</subject><issn>0142-727X</issn><issn>1879-2278</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqNkEFL5TAQx8OisG_V75CL7KnPJE3b9LCHRXZVEPQg4i3MS6c2JW3eJqmL396UJx48eRqG-c38mR8h55xtOeP1xbi144CQerfYrnf-_1awPGNyy5j6RjZcNW0hRKOOyIZxKYpGNE_fyY8YR8ZYzWSzIc_3N490QohLwAnnRH1P04AUUgIzYEf3DmakIyb6gs4bm15pb9F1maBAB_s80LSE3eJwNkjtnHCOK-Qw87nPUPB-OiXHPbiIZ-_1hDz8_fNweV3c3l3dXP6-LUzZVqloKtEC1K2UVW06yWvOQJRGVBx2EkswXLUd9JWUClWNpVQ7Viopm7JDkKI8IT8PZ_fB_1swJj3ZaNCtT_gl6pbxhileq0z-OpAm-BgD9nof7AThVXOmV7161J_06lWvZlJnvXn__D0JogHXB5iNjR9HRClyjqwyd3XgMH_9YjHoaOzqqrMBTdKdt19MfAN4npqf</recordid><startdate>20101001</startdate><enddate>20101001</enddate><creator>Cao, Guangyu</creator><creator>Sivukari, Markku</creator><creator>Kurnitski, Jarek</creator><creator>Ruponen, Mika</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20101001</creationdate><title>PIV measurement of the attached plane jet velocity field at a high turbulence intensity level in a room</title><author>Cao, Guangyu ; Sivukari, Markku ; Kurnitski, Jarek ; Ruponen, Mika</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c395t-7529aa694456cd41610a23c251ab4e3ac189daf5448e86e348b0384473dea423</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Applied sciences</topic><topic>Attached plane jet</topic><topic>Building technical equipments</topic><topic>Buildings</topic><topic>Buildings. Public works</topic><topic>Environmental engineering</topic><topic>Exact sciences and technology</topic><topic>Fluid dynamics</topic><topic>Fluid flow</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Instrumentation for fluid dynamics</topic><topic>Jet velocity</topic><topic>Jets</topic><topic>Physics</topic><topic>PIV</topic><topic>Planes</topic><topic>Reynolds number</topic><topic>Self-similarity</topic><topic>Turbulence</topic><topic>Turbulence intensity</topic><topic>Turbulent flow</topic><topic>Turbulent flows, convection, and heat transfer</topic><topic>Ventilation. Air conditioning</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cao, Guangyu</creatorcontrib><creatorcontrib>Sivukari, Markku</creatorcontrib><creatorcontrib>Kurnitski, Jarek</creatorcontrib><creatorcontrib>Ruponen, Mika</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>The International journal of heat and fluid flow</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cao, Guangyu</au><au>Sivukari, Markku</au><au>Kurnitski, Jarek</au><au>Ruponen, Mika</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>PIV measurement of the attached plane jet velocity field at a high turbulence intensity level in a room</atitle><jtitle>The International journal of heat and fluid flow</jtitle><date>2010-10-01</date><risdate>2010</risdate><volume>31</volume><issue>5</issue><spage>897</spage><epage>908</epage><pages>897-908</pages><issn>0142-727X</issn><eissn>1879-2278</eissn><coden>IJHFD2</coden><abstract>The behaviour of an attached plane jet at high turbulence intensity (>20%) is not completely understood, especially at relatively low Reynolds numbers (<2000) in a room. This study focuses on the detailed mean and instantaneous jet flow field using the particle image velocimetry (PIV) measurement technique in a full-scale climate chamber. Three isothermal conditions at different Reynolds numbers based on the jet slot height and slot average velocity, 960, 1320 and 1680, were measured, having a turbulence intensity of 44%, 30% and 22%, respectively. The results show that the measured jet velocity was able to match the earlier empirical turbulent jet results when the turbulence intensity was of the order of 40%. Incomplete self-similarity occurs when the turbulence intensity is less than 30%. After a few slot heights downstream from the jet slot, most of the data of the jet at the Reynolds number 960 present self-similarity characteristics.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><doi>10.1016/j.ijheatfluidflow.2010.04.008</doi><tpages>12</tpages></addata></record> |
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| issn | 0142-727X 1879-2278 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings |
| subjects | Applied sciences Attached plane jet Building technical equipments Buildings Buildings. Public works Environmental engineering Exact sciences and technology Fluid dynamics Fluid flow Fundamental areas of phenomenology (including applications) Instrumentation for fluid dynamics Jet velocity Jets Physics PIV Planes Reynolds number Self-similarity Turbulence Turbulence intensity Turbulent flow Turbulent flows, convection, and heat transfer Ventilation. Air conditioning |
| title | PIV measurement of the attached plane jet velocity field at a high turbulence intensity level in a room |
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