Electro-osmotic and Pressure-Driven Flow in an Eccentric Microannulus

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dc.authoridAkyildiz, Fahir/0000-0002-6264-718X
dc.authoridKAPLAN, NURHAN/0000-0002-9188-7967
dc.contributor.authorAkyildiz, F. Talay
dc.contributor.authorAlSohaim, Abeer F. A.
dc.contributor.authorKaplan, Nurhan
dc.date.accessioned2024-11-07T13:32:57Z
dc.date.available2024-11-07T13:32:57Z
dc.date.issued2019
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractConsideration is given to steady, fully developed mixed electro-osmotic/pressure-driven flow of Newtonian fluid in an eccentric microannulus. The governing Poisson-Boltzmann and momentum equations are solved numerically in bipolar coordinates. It is shown that for a fixed aspect ratio, fully eccentric channels sustain the maximum average viscosity (i.e. flow rate) under the same dimensionless pressure gradient and electro kinetic radius. For the Debye-Huckel approximation (linearised Poisson-Boltzmann equation), we show that closed-form analytical solution can be derived for velocity field. Finally, the effect of the electrokinetic radius, pressure gradient, and eccentricity on the flow field was investigated in detail.
dc.identifier.doi10.1515/zna-2018-0483
dc.identifier.endpage521
dc.identifier.issn0932-0784
dc.identifier.issn1865-7109
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85063097790
dc.identifier.scopusqualityQ3
dc.identifier.startpage513
dc.identifier.urihttps://doi.org/10.1515/zna-2018-0483
dc.identifier.urihttps://hdl.handle.net/11480/15711
dc.identifier.volume74
dc.identifier.wosWOS:000471601100005
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWalter De Gruyter Gmbh
dc.relation.ispartofZeitschrift Fur Naturforschung Section A-A Journal of Physical Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectBipolar Coordinates
dc.subjectDebye-Huckel Approximation
dc.subjectEccentric Microannulus
dc.subjectElectro-osmotic Flow
dc.subjectFinite Difference Method
dc.subjectPoisson-Boltzmann Equation
dc.titleElectro-osmotic and Pressure-Driven Flow in an Eccentric Microannulus
dc.typeArticle

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