Flow Resistance and Structures in Viscoelastic Channel Flows at Low Re
The flow of viscoelastic fluids in channels and pipes remains poorly understood, particularly at low Reynolds numbers. Here, we investigate the flow of polymeric solutions in straight channels using pressure measurements and particle tracking. The flow friction factor f_{η} versus flow rate exhibits...
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| Veröffentlicht in: | Physical review letters 2019-11, Vol.123 (19), p.194501-194501, Article 194501 |
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| container_issue | 19 |
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| container_title | Physical review letters |
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| creator | Qin, Boyang Salipante, Paul F Hudson, Steven D Arratia, Paulo E |
| description | The flow of viscoelastic fluids in channels and pipes remains poorly understood, particularly at low Reynolds numbers. Here, we investigate the flow of polymeric solutions in straight channels using pressure measurements and particle tracking. The flow friction factor f_{η} versus flow rate exhibits two regimes: a transitional regime marked by rapid increase in drag, and a turbulentlike regime characterized by a sudden decrease in drag and a weak dependence on flow rate. Lagrangian trajectories show finite transverse modulations not seen in Newtonian fluids. These curvature perturbations far downstream can generate sufficient hoop stresses to sustain the flow instabilities in the parallel shear flow. |
| doi_str_mv | 10.1103/physrevlett.123.194501 |
| format | Article |
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These curvature perturbations far downstream can generate sufficient hoop stresses to sustain the flow instabilities in the parallel shear flow.</description><subject>Channel flow</subject><subject>Dependence</subject><subject>Drag</subject><subject>Flow resistance</subject><subject>Flow velocity</subject><subject>Fluid flow</subject><subject>Friction factor</subject><subject>Newtonian fluids</subject><subject>Particle tracking</subject><subject>Shear flow</subject><subject>Straight channels</subject><subject>Viscoelastic fluids</subject><subject>Viscoelasticity</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpdkd1LwzAUxYMoOj_-BQn44ktnbtM2yYsgw6kwUPx6DWl36ypdOpN0sv_ezKmoD-E-5Jxz7-FHyDGwIQDjZ4vZyjtcthjCEFI-BJXlDLbIAJhQiQDItsmAMQ6JYkzskX3vXxljkBZyl-xxEEUe34CMx233Tu_RNz4YWyE1dkofguur0Dv0tLH0ufFVh63xoanoaGasxZaubZ6aQCef9kOyU5vW49HXPCBP48vH0XUyub26GV1MkioHHpIM8mmtIFfTtCoF8rIsa1MURkHJpRBSmhTSWgoONZZSFrJGKWphMBMqKxXjB-R8k7voyzlOK7TBmVYvXDM3bqU70-i_P7aZ6ZduqQVLWcHyGHD6FeC6tx590PNYD9vWWOx6r1MOcX2eChWlJ_-kr13vbKy3VolcqELKqCo2qsp1PiKpf44Bpteo9F1EdY_LSUSlIyq9QRWNx7-r_Ni-2fAP6cKTGQ</recordid><startdate>20191108</startdate><enddate>20191108</enddate><creator>Qin, Boyang</creator><creator>Salipante, Paul F</creator><creator>Hudson, Steven D</creator><creator>Arratia, Paulo E</creator><general>American Physical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-2566-2663</orcidid><orcidid>https://orcid.org/0000-0002-8692-4268</orcidid><orcidid>https://orcid.org/0000-0002-3203-4833</orcidid><orcidid>https://orcid.org/0000-0001-9421-7240</orcidid></search><sort><creationdate>20191108</creationdate><title>Flow Resistance and Structures in Viscoelastic Channel Flows at Low Re</title><author>Qin, Boyang ; Salipante, Paul F ; Hudson, Steven D ; Arratia, Paulo E</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c513t-415df9159d2cb7e3bbbfa66a91b387788a212f8731feb8868fe87f7ae4794b903</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Channel flow</topic><topic>Dependence</topic><topic>Drag</topic><topic>Flow resistance</topic><topic>Flow velocity</topic><topic>Fluid flow</topic><topic>Friction factor</topic><topic>Newtonian fluids</topic><topic>Particle tracking</topic><topic>Shear flow</topic><topic>Straight channels</topic><topic>Viscoelastic fluids</topic><topic>Viscoelasticity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qin, Boyang</creatorcontrib><creatorcontrib>Salipante, Paul F</creatorcontrib><creatorcontrib>Hudson, Steven D</creatorcontrib><creatorcontrib>Arratia, Paulo E</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qin, Boyang</au><au>Salipante, Paul F</au><au>Hudson, Steven D</au><au>Arratia, Paulo E</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Flow Resistance and Structures in Viscoelastic Channel Flows at Low Re</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2019-11-08</date><risdate>2019</risdate><volume>123</volume><issue>19</issue><spage>194501</spage><epage>194501</epage><pages>194501-194501</pages><artnum>194501</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>The flow of viscoelastic fluids in channels and pipes remains poorly understood, particularly at low Reynolds numbers. 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| language | eng |
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| source | American Physical Society Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Channel flow Dependence Drag Flow resistance Flow velocity Fluid flow Friction factor Newtonian fluids Particle tracking Shear flow Straight channels Viscoelastic fluids Viscoelasticity |
| title | Flow Resistance and Structures in Viscoelastic Channel Flows at Low Re |
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