A numerical study on the performance of micro-vibrating flow pumps using the immersed boundary method

Osman, Osman Omran; Shirai, Atsushi

doi:10.1007/s10404-015-1586-0

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…Recently, micro-and nanofluidic devices have attracted significant attention, as shown by expansions in microfabrication technologies, such as micropumps, [1][2][3][4][5][6] micromixers, 7) resistive pulse sensing, 8) and single-molecule transport techniques. [9][10][11][12] In particular, flows driven by external electric forces, that is, as electrohydrodynamic (EHD) flows, [13][14][15] are a strong candidate for a mass transport method.…”

Section: Introductionmentioning

confidence: 99%

Concentration dependence of cation-induced electrohydrodynamic flow passing through an anion exchange membrane

Yano

Shirai

Imoto

et al. 2017

Jpn. J. Appl. Phys.

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Electrohydrodynamic (EHD) flow is a type of liquid flow driven by an external electric force. In electrolyte solutions, anions and cations usually interact with each other to maintain electroneutrality. Under such a condition, it is difficult to drive a liquid flow by applying electric potentials on the order of 1 V; at least a few tens of volts is required to generate EHD flows, which may not be preferable for aqueous solutions. In this study, we propose a novel method of generating a liquid flow through a channel with cross-sectional dimensions of 1 × 1 mm2, which is placed in an ion exchange membrane to separate the cation and anion transport pathways. When the optimized design of the experimental apparatus was used, EHD flows were successfully generated in aqueous solutions by applying a relatively low electric potential of 2.2 V, and the flow velocity was measured over a wide range of electrolyte concentrations by particle image velocimetry. It was found that high concentration gradients caused the rapid discharge of ions passing through the channel and contributed to achieving a flow speed on the order of 1 mm/s. EHD flows were also theoretically explained using the Navier–Stokes equations to model an ion-drag flow driven by nonequilibrium ion transport in external electric fields. This flow generation method is practical only when ion transport pathways are well controlled and effectively rectified. The present findings will lead to the development of a promising technology to control liquid flows in multiscale fluidic channels.

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Section: Introductionmentioning

confidence: 99%

Concentration dependence of cation-induced electrohydrodynamic flow passing through an anion exchange membrane

Yano

Shirai

Imoto

et al. 2017

Jpn. J. Appl. Phys.

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“…Since the manufacturing of the pump is a complicated process, it is highly desired to understand how the parameters of the pump affects the resulting flow already at the stage of the design. In general, fluid-structure interaction modelling can only be addressed by numerical simulations [11,12]. The lumped element method is traditionally used to simplify modelling when the pump is analyzed separately from the microfluidic system and its characteristics are taken as boundary conditions for a liquid flow simulation within a microchannel [13,14].…”

Section: Introductionmentioning

confidence: 99%

Modelling and characterization of a pneumatically actuated peristaltic micropump

Gerasimenko

Kindeeva

Петров

et al. 2017

Applied Mathematical Modelling

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There is an emerging class of microfluidic bioreactors which possess long-term, closed circuit perfusion under sterile conditions with in vivo-like flow parameters. Integrated into microfluidics, peristaltic-like pneumatically actuated displacement micropumps are able to meet these requirements. We present both a theoretical and experimental characterization of such pumps. In order to examine volume flow rate, we have developed a mathematical model describing membrane motion under external pressure. The viscoelasticity of the membrane and hydrodynamic resistance of the microfluidic channel have been taken into account. Unlike other models, the developed model includes only the physical parameters of the pump and allows the estimation of their impact on the resulting flow. The model has been validated experimentally.

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A high flow rate thermal bubble-driven micropump with induction heating

Liu

Sun

et al. 2016

Microfluid Nanofluid

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A numerical study on the performance of micro-vibrating flow pumps using the immersed boundary method

Cited by 5 publications

References 28 publications

Concentration dependence of cation-induced electrohydrodynamic flow passing through an anion exchange membrane

Concentration dependence of cation-induced electrohydrodynamic flow passing through an anion exchange membrane

Modelling and characterization of a pneumatically actuated peristaltic micropump

A high flow rate thermal bubble-driven micropump with induction heating

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