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Effectiveness of flow obstructions in enhancing electro-osmotic flow

S. Di Fraia, N. Massarotti, Perumal Nithiarasu Orcid Logo

Microfluidics and Nanofluidics, Volume: 21, Issue: 3

Swansea University Author: Perumal Nithiarasu Orcid Logo

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DOI (Published version): 10.1007/s10404-017-1881-z

Abstract

In this paper the influence of obstructions on micro-channel electroosmotic flow is investigated for the first time. To carry out such a study, regular obstructions are introduced into micro-channels and flow rates are numerically calculated. The effect of channel width on flow rates is analysed on...

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Published in: Microfluidics and Nanofluidics
ISSN: 1613-4982 1613-4990
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa31990
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first_indexed 2017-02-15T13:47:15Z
last_indexed 2021-01-15T03:50:29Z
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spelling 2021-01-14T12:57:34.1274506 v2 31990 2017-02-15 Effectiveness of flow obstructions in enhancing electro-osmotic flow 3b28bf59358fc2b9bd9a46897dbfc92d 0000-0002-4901-2980 Perumal Nithiarasu Perumal Nithiarasu true false 2017-02-15 CIVL In this paper the influence of obstructions on micro-channel electroosmotic flow is investigated for the first time. To carry out such a study, regular obstructions are introduced into micro-channels and flow rates are numerically calculated. The effect of channel width on flow rates is analysed on both free and obstructed channels. The solid material considered for channel walls and obstructions is silicon and the electrolyte is de-ionised water. The parameters studied include channel width, obstruction size and effective porosity of the channel. The effective porosity is varied between 0.4 and 0.8 depending on other chosen parameters. The results clearly demonstrate that, under the analysed conditions, introduction of obstructions into channels wider than100 micro meters enhances the flow rate induced by electro-osmosis. Journal Article Microfluidics and Nanofluidics 21 3 1613-4982 1613-4990 Microchannels; Flow obstructions; Flow enhancement; Width effect; Numerical modelling 1 3 2017 2017-03-01 10.1007/s10404-017-1881-z COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2021-01-14T12:57:34.1274506 2017-02-15T11:55:50.6123988 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering S. Di Fraia 1 N. Massarotti 2 Perumal Nithiarasu 0000-0002-4901-2980 3 0031990-02032017144538.pdf fraia2017(3).pdf 2017-03-02T14:45:38.7200000 Output 5391292 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution License (CC-BY). true eng http://creativecommons.org/licenses/by/4.0/
title Effectiveness of flow obstructions in enhancing electro-osmotic flow
spellingShingle Effectiveness of flow obstructions in enhancing electro-osmotic flow
Perumal Nithiarasu
title_short Effectiveness of flow obstructions in enhancing electro-osmotic flow
title_full Effectiveness of flow obstructions in enhancing electro-osmotic flow
title_fullStr Effectiveness of flow obstructions in enhancing electro-osmotic flow
title_full_unstemmed Effectiveness of flow obstructions in enhancing electro-osmotic flow
title_sort Effectiveness of flow obstructions in enhancing electro-osmotic flow
author_id_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d
author_id_fullname_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d_***_Perumal Nithiarasu
author Perumal Nithiarasu
author2 S. Di Fraia
N. Massarotti
Perumal Nithiarasu
format Journal article
container_title Microfluidics and Nanofluidics
container_volume 21
container_issue 3
publishDate 2017
institution Swansea University
issn 1613-4982
1613-4990
doi_str_mv 10.1007/s10404-017-1881-z
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 Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
active_str 0
description In this paper the influence of obstructions on micro-channel electroosmotic flow is investigated for the first time. To carry out such a study, regular obstructions are introduced into micro-channels and flow rates are numerically calculated. The effect of channel width on flow rates is analysed on both free and obstructed channels. The solid material considered for channel walls and obstructions is silicon and the electrolyte is de-ionised water. The parameters studied include channel width, obstruction size and effective porosity of the channel. The effective porosity is varied between 0.4 and 0.8 depending on other chosen parameters. The results clearly demonstrate that, under the analysed conditions, introduction of obstructions into channels wider than100 micro meters enhances the flow rate induced by electro-osmosis.
published_date 2017-03-01T03:39:07Z
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score 11.016235

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