Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/26793

TítuloPressure-driven electrokinetic slip flows of viscoelastic fluids in hydrophobic microchannels
Autor(es)Afonso, A. M.
Ferrás, Luís Jorge Lima
Nóbrega, J. M.
Alves, M. A.
Pinho, F. T.
Palavras-chaveElectro-osmotic/pressure-driven flows
Asymmetric zeta potentials
Viscoelastic fluids
Hydrophobic microchannels
Slip velocity
Data2014
EditoraSpringer
RevistaMicrofluidics and Nanofluidics
Resumo(s)This work investigates the steady-state slip flow of viscoelastic fluids in hydrophobic two-dimensional microchannels under the combined influence of electroosmotic and pressure gradient forcings with symmetric or asymmetric zeta potentials at the walls. The Debye–Hu¨ckel approximation for weak potential is assumed, and the simplified Phan-Thien-Tanner model was used for the constitutive equation. Due to the different hydrophobic characteristics of the microchannel walls, we study the influence of the Navier slip boundary condition on the fluid flow, by considering different slip coefficients at both walls and varying the electrical double-layer thickness, the ratio between the applied streamwise gradients of electric potential and pressure, and the ratio of the zeta potentials. For the symmetric case, the effect of the nonlinear Navier slip model on the fluid flow is also investigated.
Tipoarticle
URIhttp://hdl.handle.net/1822/26793
DOI10.1007/s10404-013-1279-5
ISSN1613-4982
Versão da editorahttp://www.springer.com/
Arbitragem científicayes
AcessorestrictedAccess
Aparece nas coleções:IPC - Artigos em revistas científicas internacionais com arbitragem

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