Characterization of deposition patterns produced by twin-nozzle electrospray

Oh, Hyun Cheol; Kim, Kyoung‐Tae; Kim, Sang Soo

doi:10.1016/j.jaerosci.2008.05.003

Cited by 50 publications

(22 citation statements)

References 20 publications

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“…Numerical simulation with Lagrangian method (Ganan-Calvo et al, 1994;Wilhelm et al, 2003;Oh et al, 2008) can play an important role in developing MES scaling laws. The Lagrangian model tracks each droplet in a dilute two-phase flow.…”

Section: Lagrangian Modelmentioning

confidence: 99%

Interactions and deposition patterns of multiplexed electrosprays

Yang

Lojewski

Wei

et al. 2012

Journal of Aerosol Science

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Section: Lagrangian Modelmentioning

confidence: 99%

Interactions and deposition patterns of multiplexed electrosprays

Yang

Lojewski

Wei

et al. 2012

Journal of Aerosol Science

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“…The model simulates the trajectory of all droplets just after jet break-up. Lagrangian method has been well-documented previously (Ganan-Calvo et al 1994;Hartman et al 1999;Wilhelm et al 2003;Oh et al 2008) and the details will not be repeated here.…”

Section: Numerical Simulationmentioning

confidence: 99%

Design, Fabrication, and Characterization of Linear Multiplexed Electrospray Atomizers Micro-Machined from Metal and Polymers

Lojewski¹,

Yang²,

Duan³

et al. 2013

Aerosol Science and Technology

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Multiplexed electrospray is a promising aerosol generation technique to produce high throughput quasi-monodisperse droplets in the nanometer and micron size range. Here we report the design, fabrication, analysis, and performance of a linear electrospray (LINES) system. The fabrication of the nozzle array is based on a precision computer numerical control (CNC) micromachining platform with 1-micron resolution. This rapid prototyping approach offers the flexibility of creating devices from a wide range of materials including metals and polymers with packing densities on par with silicon microfabrication at 20 sources/cm for LINES devices and 460 sources/cm 2 for the two-dimensional array. The LINES device uses a slot extractor design to simplify alignment and enhance operation robustness. We also used dummy nozzles (posts without fluidic channels) to offset edge effect on electric field and improved droplet size uniformity. We derived the approximate spray expansion model from charge conservation and Gauss' law. We applied the line-of-charge approximation to establish scaling laws for prescribing operating conditions. The devices show excellent droplet size uniformity from source to source, with relative standard deviation (RSD) of primary droplets <3%.

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“…Numerical simulation techniques have been developed greatly and become an indispensable tool in both academic field and industrial field [7,8]. However, obtaining an optimum ESD processing condition still relies heavily on many trial experiments due to the complexity of the multi-physics phenomenon during the whole ESD process and the lack of a reliable numerical simulation technique.…”

Section: Introductionmentioning

confidence: 99%