Electro-osmotic effect on the three-layer flow of Binary nanoliquid between two concentric cylinders

Anandika, Rajeev; Manjunatha, S.; Vishalakshi, C. S.

doi:10.1007/s10973-022-11684-y

Cited by 1 publication

(1 citation statement)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this context, the scientific community has studied electro-osmotic pumps by viscous drag of non-conducting fluids through neighboring conducting fluids with two [60][61][62] and three layers [63] of immiscible fluids in microchannels. In other cases, all transported fluids are considered electrically conductive, providing additional electrostatic interactions at liquid-liquid interfaces for two [64][65][66] or three immiscible fluid layers [67]. Furthermore, the movement of several immiscible fluids under electro-osmotic effects has been extended to studies of multilayer flows to elucidate applications of the flow focusing and chemical processing of samples [68][69][70].…”

Section: Introductionmentioning

confidence: 99%

Start-Up Multilayer Electro-Osmotic Flow of Maxwell Fluids through an Annular Microchannel under Hydrodynamic Slip Conditions

Valencia,

Torres,

Hernández

et al. 2023

Mathematics

View full text Add to dashboard Cite

The present investigation analyzes the transient multilayer electro-osmotic flow through an annular microchannel with hydrophobic walls. The fluids are considered immiscible and viscoelastic, following the Maxwell rheological model. In the problem examined, the linearized Poisson–Boltzmann and Cauchy momentum equations are used to determine the electric potential distribution and the flow field, respectively. Here, different interfacial phenomena are studied through the imposed boundary conditions, such as the hydrodynamic slip and specified zeta potentials at solid–liquid interfaces, the velocity continuity, the electroviscous stresses balance, the potential difference, and the continuity of electrical displacements at the interfaces between fluids. The semi-analytic solution uses the Laplace transform theory. In the results, the velocity profiles and velocity tracking show the oscillatory behavior of flow, which strongly depends on the dimensionless relaxation time. Furthermore, the hydrodynamic slip on the channel walls contributes to the release of energy stored in the fluids due to elastic effects at the start-up of the flow. Similarly, other dimensionless parameters are also investigated. This research aims to predict the parallel flow behavior in microfluidic devices under electro-osmotic effects.

show abstract