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dc.contributor.author
Berli, Claudio Luis Alberto
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dc.date.available
2017-03-08T13:15:18Z
dc.date.issued
2010-02
dc.identifier.citation
Berli, Claudio Luis Alberto; Output pressure and efficiency of electrokinetic pumping of non-Newtonian fluids; Springer; Microfluidics and Nanofluidics; 8; 2; 2-2010; 197-207
dc.identifier.issn
1613-4982
dc.identifier.uri
http://hdl.handle.net/11336/13629
dc.description.abstract
Theoretical expressions of the flow rate, output pressure and thermodynamic efficiency of electrokinetic pumping of non-Newtonian fluids through cylindrical and slit microchannels are reported. Calculations are carried out in the framework of continuum fluid mechanics. The constitutive model of Ostwald-de Waele (power law) is used to express the fluid shear stress in terms of the velocity gradient. The resulting equations of flow rate and electric current are nonlinear functions of the electric potential and pressure gradients. The fact that the microstructure of non-Newtonian fluids is altered at solid–liquid interfaces is taken into account. In the case of fluids with wall depletion, both the output pressure and efficiency are found to be several times higher than that obtained with simple electrolytes under the same experimental conditions. Apart from potential applications in electrokinetic pumps, these predictions are of interest for the design of microfluidic devices that manipulate non-Newtonian fluids such as polymer solutions and colloidal suspensions. From a more fundamental point of view, the paper discusses a relevant example of nonlinear electrokinetics.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Electrokinetic Pumping
dc.subject
Non-Newtonian Fluids
dc.subject
Microfluidics
dc.subject
Nonlinear Electrokinetics
dc.subject.classification
Otras Ingenierías y Tecnologías
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Otras Ingenierías y Tecnologías
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Output pressure and efficiency of electrokinetic pumping of non-Newtonian fluids
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-02-24T19:28:35Z
dc.journal.volume
8
dc.journal.number
2
dc.journal.pagination
197-207
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Berli, Claudio Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería y Ciencias Hídricas; Argentina
dc.journal.title
Microfluidics and Nanofluidics
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10404-009-0455-0
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