Journal article 839 views
Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids
Magda Nyström,
Hamid R. Tamaddon Jahromi,
Mats Stading,
Michael Webster 
,
Hamid Tamaddon Jahromi
,
Hamid Tamaddon Jahromi
Rheologica Acta, Volume: 55, Issue: 5, Pages: 373 - 396
Swansea University Authors:
Michael Webster , Hamid Tamaddon Jahromi
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1007/s00397-016-0924-9
Abstract
In this study, hyperbolic contraction-expansion flow (HCF) devices have been investigated with the specific aim of devising new experimental measuring systems for extensional rheological properties. To this end, a hyperbolic contraction-expansion configuration has been designed to minimize the influ...
| Published in: | Rheologica Acta |
|---|---|
| Published: |
2016
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa27560 |
| first_indexed |
2016-04-30T01:13:04Z |
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| last_indexed |
2019-05-09T11:51:36Z |
| id |
cronfa27560 |
| recordtype |
SURis |
| fullrecord |
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| spelling |
2019-05-07T15:10:06.0857003 v2 27560 2016-04-29 Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids b6a811513b34d56e66489512fc2c6c61 0000-0002-7722-821X Michael Webster Michael Webster true false b3a1417ca93758b719acf764c7ced1c5 Hamid Tamaddon Jahromi Hamid Tamaddon Jahromi true false 2016-04-29 In this study, hyperbolic contraction-expansion flow (HCF) devices have been investigated with the specific aim of devising new experimental measuring systems for extensional rheological properties. To this end, a hyperbolic contraction-expansion configuration has been designed to minimize the influence of shear in the flow. Experiments have been conducted using well-characterized model fluids, alongside simulations using a viscoelastic White-Metzner/FENE-CR model and finite element/finite volume analysis. Here, the application of appropriate rheological models to reproduce quantitative pressure-drop predictions for constant shear-viscosity fluids has been investigated, in order to extract the relevant extensional properties for the various test fluids in question. Accordingly, experimental evaluation of the hyperbolic contraction-expansion configuration has shown rising corrected pressure-drops with increasing elastic behaviour (De=0~16), evidence which has been corroborated through numerical prediction. Moreover, theoretical to predicted solution correspondence has been established between extensional viscosity and first-normal stress-difference. This leads to a practical means to measure extensional viscosity for elastic fluids, obtained through the derived pressure-drop data in these HCF devices. Journal Article Rheologica Acta 55 5 373 396 31 5 2016 2016-05-31 10.1007/s00397-016-0924-9 COLLEGE NANME COLLEGE CODE Swansea University 2019-05-07T15:10:06.0857003 2016-04-29T15:01:02.9409459 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Magda Nyström 1 Hamid R. Tamaddon Jahromi 2 Mats Stading 3 Michael Webster 0000-0002-7722-821X 4 Hamid Tamaddon Jahromi 5 |
| title |
Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids |
| spellingShingle |
Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids Michael Webster Hamid Tamaddon Jahromi |
| title_short |
Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids |
| title_full |
Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids |
| title_fullStr |
Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids |
| title_full_unstemmed |
Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids |
| title_sort |
Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids |
| author_id_str_mv |
b6a811513b34d56e66489512fc2c6c61 b3a1417ca93758b719acf764c7ced1c5 |
| author_id_fullname_str_mv |
b6a811513b34d56e66489512fc2c6c61_***_Michael Webster b3a1417ca93758b719acf764c7ced1c5_***_Hamid Tamaddon Jahromi |
| author |
Michael Webster Hamid Tamaddon Jahromi |
| author2 |
Magda Nyström Hamid R. Tamaddon Jahromi Mats Stading Michael Webster Hamid Tamaddon Jahromi |
| format |
Journal article |
| container_title |
Rheologica Acta |
| container_volume |
55 |
| container_issue |
5 |
| container_start_page |
373 |
| publishDate |
2016 |
| institution |
Swansea University |
| doi_str_mv |
10.1007/s00397-016-0924-9 |
| college_str |
Faculty of Science and Engineering |
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|
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
| hierarchy_parent_title |
Faculty of Science and Engineering |
| department_str |
School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised |
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0 |
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| description |
In this study, hyperbolic contraction-expansion flow (HCF) devices have been investigated with the specific aim of devising new experimental measuring systems for extensional rheological properties. To this end, a hyperbolic contraction-expansion configuration has been designed to minimize the influence of shear in the flow. Experiments have been conducted using well-characterized model fluids, alongside simulations using a viscoelastic White-Metzner/FENE-CR model and finite element/finite volume analysis. Here, the application of appropriate rheological models to reproduce quantitative pressure-drop predictions for constant shear-viscosity fluids has been investigated, in order to extract the relevant extensional properties for the various test fluids in question. Accordingly, experimental evaluation of the hyperbolic contraction-expansion configuration has shown rising corrected pressure-drops with increasing elastic behaviour (De=0~16), evidence which has been corroborated through numerical prediction. Moreover, theoretical to predicted solution correspondence has been established between extensional viscosity and first-normal stress-difference. This leads to a practical means to measure extensional viscosity for elastic fluids, obtained through the derived pressure-drop data in these HCF devices. |
| published_date |
2016-05-31T12:59:39Z |
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1821410464201965568 |
| score |
11.048149 |