Near-wall statistics of a turbulent pipe flow at shear Reynolds numbers up to 40 000
This paper reports on near-wall two-component–two-dimensional (2C–2D) particle image velocimetry (PIV) measurements of a turbulent pipe flow at shear Reynolds numbers up to $Re_{\unicode[STIX]{x1D70F}}=40\,000$ acquired in the CICLoPE facility of the University of Bologna. The 111.5 m long pipe of 9...
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| Veröffentlicht in: | Journal of fluid mechanics 2017-09, Vol.826, Article R5 |
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| container_title | Journal of fluid mechanics |
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| creator | Willert, Christian E. Soria, Julio Stanislas, Michel Klinner, Joachim Amili, Omid Eisfelder, Michael Cuvier, Christophe Bellani, Gabriele Fiorini, Tommaso Talamelli, Alessandro |
| description | This paper reports on near-wall two-component–two-dimensional (2C–2D) particle image velocimetry (PIV) measurements of a turbulent pipe flow at shear Reynolds numbers up to
$Re_{\unicode[STIX]{x1D70F}}=40\,000$
acquired in the CICLoPE facility of the University of Bologna. The 111.5 m long pipe of 900 mm diameter offers a well-established turbulent flow with viscous length scales ranging from
$85~\unicode[STIX]{x03BC}\text{m}$
at
$Re_{\unicode[STIX]{x1D70F}}=5000$
down to
$11~\unicode[STIX]{x03BC}\text{m}$
at
$Re_{\unicode[STIX]{x1D70F}}=40\,000$
. These length scales can be resolved with a high-speed PIV camera at image magnification near unity. Statistically converged velocity profiles were determined using multiple sequences of up to 70 000 PIV recordings acquired at sampling rates of 100 Hz up to 10 kHz. Analysis of the velocity statistics shows a well-resolved inner peak of the streamwise velocity fluctuations that grows with increasing Reynolds number and an outer peak that develops and moves away from the inner peak with increasing Reynolds number. |
| doi_str_mv | 10.1017/jfm.2017.498 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_1992045463</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><cupid>10_1017_jfm_2017_498</cupid><sourcerecordid>1992045463</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3218-b89fb7fd933f841fe28ed8979baeb5c8a735081c8c124f2288437a585ffbd31e3</originalsourceid><addsrcrecordid>eNptkMtKAzEUhoMoWKs7HyDg1hlPLtMkSyneoCiIXYdkJtEpczPJUHwbn8Unc0q7cOHq_Ivv_w98CF0SyAkQcbPxbU6nkHMlj9CM8IXKxIIXx2gGQGlGCIVTdBbjBoAwUGKG1s_OhGxrmgbHZFIdU11G3HtscBqDHRvXJTzUg8O-6bfYJBw_pgZ-dV9d31QRd2NrXYh4HHDqMYefbwA4RyfeNNFdHO4cre_v3paP2erl4Wl5u8pKRonMrFTeCl8pxrzkxDsqXSWVUNY4W5TSCFaAJKUsCeWeUik5E6aQhfe2YsSxObra7w6h_xxdTHrTj6GbXmqiFAVe8AWbqOs9VYY-xuC8HkLdmvClCeidOD2J0ztxehI34fkBN60NdfXu_qz-V_gFI1tvng</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1992045463</pqid></control><display><type>article</type><title>Near-wall statistics of a turbulent pipe flow at shear Reynolds numbers up to 40 000</title><source>Cambridge University Press Journals Complete</source><creator>Willert, Christian E. ; Soria, Julio ; Stanislas, Michel ; Klinner, Joachim ; Amili, Omid ; Eisfelder, Michael ; Cuvier, Christophe ; Bellani, Gabriele ; Fiorini, Tommaso ; Talamelli, Alessandro</creator><creatorcontrib>Willert, Christian E. ; Soria, Julio ; Stanislas, Michel ; Klinner, Joachim ; Amili, Omid ; Eisfelder, Michael ; Cuvier, Christophe ; Bellani, Gabriele ; Fiorini, Tommaso ; Talamelli, Alessandro</creatorcontrib><description>This paper reports on near-wall two-component–two-dimensional (2C–2D) particle image velocimetry (PIV) measurements of a turbulent pipe flow at shear Reynolds numbers up to
$Re_{\unicode[STIX]{x1D70F}}=40\,000$
acquired in the CICLoPE facility of the University of Bologna. The 111.5 m long pipe of 900 mm diameter offers a well-established turbulent flow with viscous length scales ranging from
$85~\unicode[STIX]{x03BC}\text{m}$
at
$Re_{\unicode[STIX]{x1D70F}}=5000$
down to
$11~\unicode[STIX]{x03BC}\text{m}$
at
$Re_{\unicode[STIX]{x1D70F}}=40\,000$
. These length scales can be resolved with a high-speed PIV camera at image magnification near unity. Statistically converged velocity profiles were determined using multiple sequences of up to 70 000 PIV recordings acquired at sampling rates of 100 Hz up to 10 kHz. Analysis of the velocity statistics shows a well-resolved inner peak of the streamwise velocity fluctuations that grows with increasing Reynolds number and an outer peak that develops and moves away from the inner peak with increasing Reynolds number.</description><identifier>ISSN: 0022-1120</identifier><identifier>EISSN: 1469-7645</identifier><identifier>DOI: 10.1017/jfm.2017.498</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Aerospace engineering ; Boundary layer ; Computational fluid dynamics ; Educational institutions ; Fluid flow ; Particle image velocimetry ; Pipe flow ; Pipes ; Rapids ; Reynolds number ; Shear ; Shear flow ; Statistical analysis ; Statistical methods ; Statistics ; Turbulence ; Turbulent flow ; Variation ; Velocity ; Velocity distribution ; Velocity measurement ; Velocity profiles</subject><ispartof>Journal of fluid mechanics, 2017-09, Vol.826, Article R5</ispartof><rights>2017 Cambridge University Press</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3218-b89fb7fd933f841fe28ed8979baeb5c8a735081c8c124f2288437a585ffbd31e3</citedby><cites>FETCH-LOGICAL-c3218-b89fb7fd933f841fe28ed8979baeb5c8a735081c8c124f2288437a585ffbd31e3</cites><orcidid>0000-0002-7089-9686 ; 0000-0002-1668-0181</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.cambridge.org/core/product/identifier/S0022112017004980/type/journal_article$$EHTML$$P50$$Gcambridge$$H</linktohtml><link.rule.ids>164,314,780,784,27924,27925,55628</link.rule.ids></links><search><creatorcontrib>Willert, Christian E.</creatorcontrib><creatorcontrib>Soria, Julio</creatorcontrib><creatorcontrib>Stanislas, Michel</creatorcontrib><creatorcontrib>Klinner, Joachim</creatorcontrib><creatorcontrib>Amili, Omid</creatorcontrib><creatorcontrib>Eisfelder, Michael</creatorcontrib><creatorcontrib>Cuvier, Christophe</creatorcontrib><creatorcontrib>Bellani, Gabriele</creatorcontrib><creatorcontrib>Fiorini, Tommaso</creatorcontrib><creatorcontrib>Talamelli, Alessandro</creatorcontrib><title>Near-wall statistics of a turbulent pipe flow at shear Reynolds numbers up to 40 000</title><title>Journal of fluid mechanics</title><addtitle>J. Fluid Mech</addtitle><description>This paper reports on near-wall two-component–two-dimensional (2C–2D) particle image velocimetry (PIV) measurements of a turbulent pipe flow at shear Reynolds numbers up to
$Re_{\unicode[STIX]{x1D70F}}=40\,000$
acquired in the CICLoPE facility of the University of Bologna. The 111.5 m long pipe of 900 mm diameter offers a well-established turbulent flow with viscous length scales ranging from
$85~\unicode[STIX]{x03BC}\text{m}$
at
$Re_{\unicode[STIX]{x1D70F}}=5000$
down to
$11~\unicode[STIX]{x03BC}\text{m}$
at
$Re_{\unicode[STIX]{x1D70F}}=40\,000$
. These length scales can be resolved with a high-speed PIV camera at image magnification near unity. Statistically converged velocity profiles were determined using multiple sequences of up to 70 000 PIV recordings acquired at sampling rates of 100 Hz up to 10 kHz. Analysis of the velocity statistics shows a well-resolved inner peak of the streamwise velocity fluctuations that grows with increasing Reynolds number and an outer peak that develops and moves away from the inner peak with increasing Reynolds number.</description><subject>Aerospace engineering</subject><subject>Boundary layer</subject><subject>Computational fluid dynamics</subject><subject>Educational institutions</subject><subject>Fluid flow</subject><subject>Particle image velocimetry</subject><subject>Pipe flow</subject><subject>Pipes</subject><subject>Rapids</subject><subject>Reynolds number</subject><subject>Shear</subject><subject>Shear flow</subject><subject>Statistical analysis</subject><subject>Statistical methods</subject><subject>Statistics</subject><subject>Turbulence</subject><subject>Turbulent flow</subject><subject>Variation</subject><subject>Velocity</subject><subject>Velocity distribution</subject><subject>Velocity measurement</subject><subject>Velocity profiles</subject><issn>0022-1120</issn><issn>1469-7645</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNptkMtKAzEUhoMoWKs7HyDg1hlPLtMkSyneoCiIXYdkJtEpczPJUHwbn8Unc0q7cOHq_Ivv_w98CF0SyAkQcbPxbU6nkHMlj9CM8IXKxIIXx2gGQGlGCIVTdBbjBoAwUGKG1s_OhGxrmgbHZFIdU11G3HtscBqDHRvXJTzUg8O-6bfYJBw_pgZ-dV9d31QRd2NrXYh4HHDqMYefbwA4RyfeNNFdHO4cre_v3paP2erl4Wl5u8pKRonMrFTeCl8pxrzkxDsqXSWVUNY4W5TSCFaAJKUsCeWeUik5E6aQhfe2YsSxObra7w6h_xxdTHrTj6GbXmqiFAVe8AWbqOs9VYY-xuC8HkLdmvClCeidOD2J0ztxehI34fkBN60NdfXu_qz-V_gFI1tvng</recordid><startdate>20170910</startdate><enddate>20170910</enddate><creator>Willert, Christian E.</creator><creator>Soria, 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statistics of a turbulent pipe flow at shear Reynolds numbers up to 40 000</title><author>Willert, Christian E. ; Soria, Julio ; Stanislas, Michel ; Klinner, Joachim ; Amili, Omid ; Eisfelder, Michael ; Cuvier, Christophe ; Bellani, Gabriele ; Fiorini, Tommaso ; Talamelli, Alessandro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3218-b89fb7fd933f841fe28ed8979baeb5c8a735081c8c124f2288437a585ffbd31e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Aerospace engineering</topic><topic>Boundary layer</topic><topic>Computational fluid dynamics</topic><topic>Educational institutions</topic><topic>Fluid flow</topic><topic>Particle image velocimetry</topic><topic>Pipe flow</topic><topic>Pipes</topic><topic>Rapids</topic><topic>Reynolds number</topic><topic>Shear</topic><topic>Shear flow</topic><topic>Statistical analysis</topic><topic>Statistical methods</topic><topic>Statistics</topic><topic>Turbulence</topic><topic>Turbulent flow</topic><topic>Variation</topic><topic>Velocity</topic><topic>Velocity distribution</topic><topic>Velocity measurement</topic><topic>Velocity profiles</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Willert, Christian E.</creatorcontrib><creatorcontrib>Soria, Julio</creatorcontrib><creatorcontrib>Stanislas, Michel</creatorcontrib><creatorcontrib>Klinner, Joachim</creatorcontrib><creatorcontrib>Amili, Omid</creatorcontrib><creatorcontrib>Eisfelder, Michael</creatorcontrib><creatorcontrib>Cuvier, Christophe</creatorcontrib><creatorcontrib>Bellani, Gabriele</creatorcontrib><creatorcontrib>Fiorini, Tommaso</creatorcontrib><creatorcontrib>Talamelli, Alessandro</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and 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Gabriele</au><au>Fiorini, Tommaso</au><au>Talamelli, Alessandro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Near-wall statistics of a turbulent pipe flow at shear Reynolds numbers up to 40 000</atitle><jtitle>Journal of fluid mechanics</jtitle><addtitle>J. Fluid Mech</addtitle><date>2017-09-10</date><risdate>2017</risdate><volume>826</volume><artnum>R5</artnum><issn>0022-1120</issn><eissn>1469-7645</eissn><abstract>This paper reports on near-wall two-component–two-dimensional (2C–2D) particle image velocimetry (PIV) measurements of a turbulent pipe flow at shear Reynolds numbers up to
$Re_{\unicode[STIX]{x1D70F}}=40\,000$
acquired in the CICLoPE facility of the University of Bologna. The 111.5 m long pipe of 900 mm diameter offers a well-established turbulent flow with viscous length scales ranging from
$85~\unicode[STIX]{x03BC}\text{m}$
at
$Re_{\unicode[STIX]{x1D70F}}=5000$
down to
$11~\unicode[STIX]{x03BC}\text{m}$
at
$Re_{\unicode[STIX]{x1D70F}}=40\,000$
. These length scales can be resolved with a high-speed PIV camera at image magnification near unity. Statistically converged velocity profiles were determined using multiple sequences of up to 70 000 PIV recordings acquired at sampling rates of 100 Hz up to 10 kHz. Analysis of the velocity statistics shows a well-resolved inner peak of the streamwise velocity fluctuations that grows with increasing Reynolds number and an outer peak that develops and moves away from the inner peak with increasing Reynolds number.</abstract><cop>Cambridge, UK</cop><pub>Cambridge University Press</pub><doi>10.1017/jfm.2017.498</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-7089-9686</orcidid><orcidid>https://orcid.org/0000-0002-1668-0181</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of fluid mechanics, 2017-09, Vol.826, Article R5 |
| issn | 0022-1120 1469-7645 |
| language | eng |
| recordid | cdi_proquest_journals_1992045463 |
| source | Cambridge University Press Journals Complete |
| subjects | Aerospace engineering Boundary layer Computational fluid dynamics Educational institutions Fluid flow Particle image velocimetry Pipe flow Pipes Rapids Reynolds number Shear Shear flow Statistical analysis Statistical methods Statistics Turbulence Turbulent flow Variation Velocity Velocity distribution Velocity measurement Velocity profiles |
| title | Near-wall statistics of a turbulent pipe flow at shear Reynolds numbers up to 40 000 |
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