Asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flows

Asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flows

A set of dimensionless groups along with constraints on their values are formulated to serve as an indication of the parametric combinations, leading to minimal enhancement of streamwise passive species transport in time-periodic electro-osmotic microchannel flows with asymmetric hydrodynamic slip a...

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Main Authors: Hsin-Fu Huang, Kun-Hao Huang, Ju-En Kuo
Format: Article
Language:English
Published: AIP Publishing LLC 2021-08-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0064262
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spelling doaj-df118b3509a248e89e7678901699020c2021-09-03T11:18:12ZengAIP Publishing LLCAIP Advances2158-32262021-08-01118085110085110-710.1063/5.0064262Asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flowsHsin-Fu Huang0Kun-Hao Huang1Ju-En Kuo2Department of Mechanical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106319, TaiwanDepartment of Mechanical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106319, TaiwanDepartment of Mechanical Engineering, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 106319, TaiwanA set of dimensionless groups along with constraints on their values are formulated to serve as an indication of the parametric combinations, leading to minimal enhancement of streamwise passive species transport in time-periodic electro-osmotic microchannel flows with asymmetric hydrodynamic slip and zeta potential boundaries. While the slip lengths and zeta potentials are mostly treated as uncoupled in the electrokinetic transport literature, we incorporate into the analysis wall surface charge/potential coupled apparent slip lengths and find that more than one minimal enhancement instances may be achieved during a zeta potential sweep, provided that the uncharged surface slip length ratio is large enough.http://dx.doi.org/10.1063/5.0064262
collection DOAJ
language English
format Article
sources DOAJ
author Hsin-Fu Huang
Kun-Hao Huang
Ju-En Kuo
spellingShingle Hsin-Fu Huang
Kun-Hao Huang
Ju-En Kuo
Asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flows
AIP Advances
author_facet Hsin-Fu Huang
Kun-Hao Huang
Ju-En Kuo
author_sort Hsin-Fu Huang
title Asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flows
title_short Asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flows
title_full Asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flows
title_fullStr Asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flows
title_full_unstemmed Asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flows
title_sort asymmetric boundary conditions and their relevance in minimal passive mass species transport in time-periodic electro-osmotic flows
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2021-08-01
description A set of dimensionless groups along with constraints on their values are formulated to serve as an indication of the parametric combinations, leading to minimal enhancement of streamwise passive species transport in time-periodic electro-osmotic microchannel flows with asymmetric hydrodynamic slip and zeta potential boundaries. While the slip lengths and zeta potentials are mostly treated as uncoupled in the electrokinetic transport literature, we incorporate into the analysis wall surface charge/potential coupled apparent slip lengths and find that more than one minimal enhancement instances may be achieved during a zeta potential sweep, provided that the uncharged surface slip length ratio is large enough.
url http://dx.doi.org/10.1063/5.0064262
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AT kunhaohuang asymmetricboundaryconditionsandtheirrelevanceinminimalpassivemassspeciestransportintimeperiodicelectroosmoticflows
AT juenkuo asymmetricboundaryconditionsandtheirrelevanceinminimalpassivemassspeciestransportintimeperiodicelectroosmoticflows
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