No Cover Image

Journal article 427 views 57 downloads

Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity

Salah A. Faroughi Orcid Logo, Francesco Del Giudice Orcid Logo

Polymers, Volume: 14, Issue: 4, Start page: 657

Swansea University Author: Francesco Del Giudice Orcid Logo

  • 60734.VOR.pdf

    PDF | Version of Record

    Copyright: © 2022 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license

    Download (6.03MB)

Check full text

DOI (Published version): 10.3390/polym14040657

Abstract

The efficient transport of solid particles using polymeric fluids is an important step in many industrial operations. Different viscoelastic fluids have been designed for this purpose, however, the effects of elasticity have not been fully integrated in examining the particle-carrying capacity of th...

Full description

Published in: Polymers
ISSN: 2073-4360
Published: MDPI AG 2022
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa60734
Tags: Add Tag
No Tags, Be the first to tag this record!
first_indexed 2022-08-04T15:51:37Z
last_indexed 2023-01-13T19:21:05Z
id cronfa60734
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2022-08-17T10:36:24.2071412</datestamp><bib-version>v2</bib-version><id>60734</id><entry>2022-08-04</entry><title>Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity</title><swanseaauthors><author><sid>742d483071479b44d7888e16166b1309</sid><ORCID>0000-0002-9414-6937</ORCID><firstname>Francesco</firstname><surname>Del Giudice</surname><name>Francesco Del Giudice</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2022-08-04</date><deptcode>CHEG</deptcode><abstract>The efficient transport of solid particles using polymeric fluids is an important step in many industrial operations. Different viscoelastic fluids have been designed for this purpose, however, the effects of elasticity have not been fully integrated in examining the particle-carrying capacity of the fluids. In this work, two elastic fluid formulations were employed to experimentally clarify the effect of elasticity on the particle drag coefficient as a proxy model for measuring carrying capacity. Fluids were designed to have a constant shear viscosity within a specific range of shear rates, &#x3B3;&#x2D9;&lt;50(1/s), while possessing distinct (longest) relaxation times to investigate the influence of elasticity. It is shown that for dilute polymeric solutions, microfluidic rheometry must be practiced to obtain a reliable relaxation time (as one of the measures of viscoelasticity), which is on the order of milliseconds. A calibrated experimental setup, furnished with two advanced particle velocity measurement techniques and spheres with different characteristics, was used to quantify the effect of elasticity on the drag coefficient. These experiments led to a unique dataset in moderate levels of Weissenberg numbers, 0&lt;Wi&lt;8.5. The data showed that there is a subtle reduction in the drag coefficient at low levels of elasticity (Wi&lt;1), and a considerable enhancement at high levels of elasticity (Wi&gt;1). The experimental results were then compared with direct numerical simulation predictions yielding R2=0.982. These evaluations endorse the numerically quantified behaviors for the drag coefficient to be used to compare the particle-carrying capacity of different polymeric fluids under different flow conditions.</abstract><type>Journal Article</type><journal>Polymers</journal><volume>14</volume><journalNumber>4</journalNumber><paginationStart>657</paginationStart><paginationEnd/><publisher>MDPI AG</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint/><issnElectronic>2073-4360</issnElectronic><keywords>viscoelasticity; particle settling; dilute polymeric solutions; Oldroyd-B model; microfluidic rheometry; drag coefficient; hydraulic fracturing</keywords><publishedDay>9</publishedDay><publishedMonth>2</publishedMonth><publishedYear>2022</publishedYear><publishedDate>2022-02-09</publishedDate><doi>10.3390/polym14040657</doi><url/><notes/><college>COLLEGE NANME</college><department>Chemical Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>CHEG</DepartmentCode><institution>Swansea University</institution><apcterm>Other</apcterm><funders>EPSRC New Investigator Award (grant ref. no. EP/S036490/1).</funders><projectreference/><lastEdited>2022-08-17T10:36:24.2071412</lastEdited><Created>2022-08-04T16:46:19.9077001</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Chemical Engineering</level></path><authors><author><firstname>Salah A.</firstname><surname>Faroughi</surname><orcid>0000-0002-6543-1691</orcid><order>1</order></author><author><firstname>Francesco</firstname><surname>Del Giudice</surname><orcid>0000-0002-9414-6937</orcid><order>2</order></author></authors><documents><document><filename>60734__24850__f0655589633744a69824d7fd17071b6b.pdf</filename><originalFilename>60734.VOR.pdf</originalFilename><uploaded>2022-08-04T16:52:27.9205801</uploaded><type>Output</type><contentLength>6320758</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><embargoDate>2022-02-09T00:00:00.0000000</embargoDate><documentNotes>Copyright: &#xA9; 2022 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>https://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2022-08-17T10:36:24.2071412 v2 60734 2022-08-04 Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity 742d483071479b44d7888e16166b1309 0000-0002-9414-6937 Francesco Del Giudice Francesco Del Giudice true false 2022-08-04 CHEG The efficient transport of solid particles using polymeric fluids is an important step in many industrial operations. Different viscoelastic fluids have been designed for this purpose, however, the effects of elasticity have not been fully integrated in examining the particle-carrying capacity of the fluids. In this work, two elastic fluid formulations were employed to experimentally clarify the effect of elasticity on the particle drag coefficient as a proxy model for measuring carrying capacity. Fluids were designed to have a constant shear viscosity within a specific range of shear rates, γ˙<50(1/s), while possessing distinct (longest) relaxation times to investigate the influence of elasticity. It is shown that for dilute polymeric solutions, microfluidic rheometry must be practiced to obtain a reliable relaxation time (as one of the measures of viscoelasticity), which is on the order of milliseconds. A calibrated experimental setup, furnished with two advanced particle velocity measurement techniques and spheres with different characteristics, was used to quantify the effect of elasticity on the drag coefficient. These experiments led to a unique dataset in moderate levels of Weissenberg numbers, 0<Wi<8.5. The data showed that there is a subtle reduction in the drag coefficient at low levels of elasticity (Wi<1), and a considerable enhancement at high levels of elasticity (Wi>1). The experimental results were then compared with direct numerical simulation predictions yielding R2=0.982. These evaluations endorse the numerically quantified behaviors for the drag coefficient to be used to compare the particle-carrying capacity of different polymeric fluids under different flow conditions. Journal Article Polymers 14 4 657 MDPI AG 2073-4360 viscoelasticity; particle settling; dilute polymeric solutions; Oldroyd-B model; microfluidic rheometry; drag coefficient; hydraulic fracturing 9 2 2022 2022-02-09 10.3390/polym14040657 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University Other EPSRC New Investigator Award (grant ref. no. EP/S036490/1). 2022-08-17T10:36:24.2071412 2022-08-04T16:46:19.9077001 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Salah A. Faroughi 0000-0002-6543-1691 1 Francesco Del Giudice 0000-0002-9414-6937 2 60734__24850__f0655589633744a69824d7fd17071b6b.pdf 60734.VOR.pdf 2022-08-04T16:52:27.9205801 Output 6320758 application/pdf Version of Record true 2022-02-09T00:00:00.0000000 Copyright: © 2022 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license true eng https://creativecommons.org/licenses/by/4.0/
title Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity
spellingShingle Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity
Francesco Del Giudice
title_short Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity
title_full Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity
title_fullStr Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity
title_full_unstemmed Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity
title_sort Microfluidic Rheometry and Particle Settling: Characterizing the Effect of Polymer Solution Elasticity
author_id_str_mv 742d483071479b44d7888e16166b1309
author_id_fullname_str_mv 742d483071479b44d7888e16166b1309_***_Francesco Del Giudice
author Francesco Del Giudice
author2 Salah A. Faroughi
Francesco Del Giudice
format Journal article
container_title Polymers
container_volume 14
container_issue 4
container_start_page 657
publishDate 2022
institution Swansea University
issn 2073-4360
doi_str_mv 10.3390/polym14040657
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
active_str 0
description The efficient transport of solid particles using polymeric fluids is an important step in many industrial operations. Different viscoelastic fluids have been designed for this purpose, however, the effects of elasticity have not been fully integrated in examining the particle-carrying capacity of the fluids. In this work, two elastic fluid formulations were employed to experimentally clarify the effect of elasticity on the particle drag coefficient as a proxy model for measuring carrying capacity. Fluids were designed to have a constant shear viscosity within a specific range of shear rates, γ˙<50(1/s), while possessing distinct (longest) relaxation times to investigate the influence of elasticity. It is shown that for dilute polymeric solutions, microfluidic rheometry must be practiced to obtain a reliable relaxation time (as one of the measures of viscoelasticity), which is on the order of milliseconds. A calibrated experimental setup, furnished with two advanced particle velocity measurement techniques and spheres with different characteristics, was used to quantify the effect of elasticity on the drag coefficient. These experiments led to a unique dataset in moderate levels of Weissenberg numbers, 0<Wi<8.5. The data showed that there is a subtle reduction in the drag coefficient at low levels of elasticity (Wi<1), and a considerable enhancement at high levels of elasticity (Wi>1). The experimental results were then compared with direct numerical simulation predictions yielding R2=0.982. These evaluations endorse the numerically quantified behaviors for the drag coefficient to be used to compare the particle-carrying capacity of different polymeric fluids under different flow conditions.
published_date 2022-02-09T04:19:05Z
_version_ 1763754267785560064
score 11.013731

Similar Items