Electroosmotic pressure-driven oscillatory flow and mass transport of Oldroyd-B fluid under high zeta potential and slippage conditions in microchannels

Saha, Sujit; Kundu, Balaram

doi:10.1016/j.colsurfa.2022.129070

Cited by 14 publications

(6 citation statements)

References 57 publications

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“…One of the strategies to improve efficiency is to increase the interface of the two fluids and reduce the diffusion path between them [453]. Therefore, active methods have broad applications, such as droplet-based mixing [454], time-periodic mixing [455], multi-step mixing [456], etc. Due to their easy fabrication and integration, passive micromixers engage widely.…”

Section: Enhancing Microchannel Mixing and Separationmentioning

confidence: 99%

Review and Analysis of Electro-Magnetohydrodynamic Flow and Heat Transport in Microchannels

Kundu

Saha

2022

Energies

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This paper aims to develop a review of the electrokinetic flow in microchannels. Thermal characteristics of electrokinetic phenomena in microchannels based on the Poisson–Boltzmann equation are presented rigorously by considering the Debye–Hückel approximation at a low zeta potential. Several researchers developed new mathematical models for high electrical potential with the electrical double layer (EDL). A literature survey was conducted to determine the velocity, temperature, Nusselt number, and volumetric flow rate by several analytical, numerical, and combinations along with different parameters. The momentum and energy equations govern these parameters with the influences of electric, magnetic, or both fields at various preconditions. The primary focus of this study is to summarize the literature rigorously on outcomes of electrokinetically driven flow in microchannels from the beginning to the present. The possible future scope of work highlights developing new mathematical analyses. This study also discusses the heat transport behavior of the electroosmotically driven flow in microchannels in view of no-slip, first-order slip, and second-order slip at the boundaries for the velocity distribution and no-jump, first-order thermal-slip, and second-order thermal-slip for the thermal response under maintaining a uniform wall-heat flux. Appropriate conditions are conferred elaborately to determine the velocity, temperature, and heat transport in the microchannel flow with the imposition of the pressure, electric, and magnetic forces. The effects of heat transfer on viscous dissipation, Joule heating, and thermal radiation envisage an advanced study for the fluid flow in microchannels. Finally, analytical steps highlighting different design aspects would help better understand the microchannel flow’s essential fundamentals in a single document. They enhance the knowledge of forthcoming developmental issues to promote the needed study area.

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Section: Enhancing Microchannel Mixing and Separationmentioning

confidence: 99%

Review and Analysis of Electro-Magnetohydrodynamic Flow and Heat Transport in Microchannels

Kundu

Saha

2022

Energies

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“…The results of current research revealed that the retardation and stress relaxation influences have converse trends on the thermal and momentum behavior of the non-Newtonian fluid. Saha and Kundu 7 described the pressure-driven OBF flow in microchannel. They expressed the slip and electroosmotic conditions in this research.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of oldroyd-b and casson nanofluids flowing through chemically reactive radiative porous medium

Shehzad,

Farid

2024

Advances in Mechanical Engineering

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The comparative analysis of non-Newtonian nanofluids with Newtonian conditions are addressed in this research. Oldroyd-B and Casson fluids are adopted as the non-Newtonian fluids (NNF). The generation of flow is due to bidirectionally movement of magnetized surface. Radiation and chemical reactive processes are accounted in energy and mass transportation equations. Buongiorno’s theory of nanoparticles is developed for the nanofluids analysis. The basic formulas of fluid dynamics are incorporated to formulate the physical model. The assumption of boundary-layer is utilized for the simplification of mathematical model. The arising nonlinear model of three independent variables are converted into one independent variable model using similarity constraints. The simplified mathematical model is treated analytically through the implementation of homotopic approach. The convergence of this scheme is verified through numerical benchmark and graphic illustration. The results of versatile constraints on physical quantities are addressed numerically and graphically. The comparison of results with previous published outcomes is provided in limiting approach.

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“…However, they have not considered rotational effects in their analysis. Furthermore, several researchers in the past investigated the flow transport through narrow confinement by taking Navier slip boundary conditions [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

A theoretical analysis of rotating electromagnetohydrodynamic and electroosmotic transport of couple stress fluid through a microchannel

Siva,

Jangili,

Kumbhakar

2024

Z Angew Math Mech

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The main motivation behind this research work is the electroosmotic flow (EOF), which characterizes the movement of charged particles in a fluid when subjected to an external electric field, which offers precise control over fluid movement without mechanical components. The study of bio‐fluids in rotating microfluidic platforms is becoming much more significant. Hence, it is important to discuss the non‐Newtonian fluids in such environments. This paper analytically investigates the hydrodynamic characteristics of combined electromagnetohydrodynamic (EMHD) and EOF transport of non‐Newtonian fluid through a rotating microchannel with Navier‐slip boundary conditions at the walls. The couple stress fluid model is considered a non‐Newtonian fluid in the flow domain. The linearized Poisson‐Boltzmann equation is considered inside the electric double layer (EDL). The modified Stokes equation is governed by a combined imposed magnetic and EOF field. Closed form expressions are obtained for electrical potential, flow velocity, and volume flow rate in the channel using analytical methods. The dependence of rotating electromagnetic flow velocity and flow rates on appropriate parameters is explained. It is found that the rotational flow velocity displays an opposite pattern when the couple stress parameter and electric field intensity parameters are varied due to the influence of channel rotation. It is also found that the secondary flow rate ratio is amplified with the Hartmann number and slip length parameter, due to the stronger impact of the non‐Newtonian behaviour than the Newtonian situation on the volume flow rate at a relatively higher rotational value. The findings of this study may aid in the design and analysis of practical thermal micro/nano‐equipment for transporting biofluids.

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Electroosmotic pressure-driven oscillatory flow and mass transport of Oldroyd-B fluid under high zeta potential and slippage conditions in microchannels

Cited by 14 publications

References 57 publications

Review and Analysis of Electro-Magnetohydrodynamic Flow and Heat Transport in Microchannels

Review and Analysis of Electro-Magnetohydrodynamic Flow and Heat Transport in Microchannels

Comparative analysis of oldroyd-b and casson nanofluids flowing through chemically reactive radiative porous medium

A theoretical analysis of rotating electromagnetohydrodynamic and electroosmotic transport of couple stress fluid through a microchannel

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