Title

Interactions and deposition patterns of multiplexed electrosprays

Authors

Authors

W. W. Yang; B. Lojewski; Y. Wei;W. W. Deng

Comments

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Abbreviated Journal Title

J. Aerosol. Sci.

Keywords

Electrospray; Deposition; Numerical simulation; GPU; MONODISPERSE DROPLETS; ELECTROSTATIC SPRAY; CHARGE; GENERATION; LIQUIDS; DROPS; Engineering, Chemical; Engineering, Mechanical; Environmental Sciences; Meteorology & Atmospheric Sciences

Abstract

Multiplexed electrospray is a promising aerosol technique to achieve both high throughput and unique advantages of the electrospray such as monodispersity and small droplet size down to nanometer range. Here we study the interaction and overall deposition pattern of multiplexed electrosprays. First, we derived an approximate model for the profile of a single electrospray subjected to its own space charge field as well as external driving electric field. Then the spray profile model was generalized to describe the deposition pattern for multiple electrosprays. Numerically, we investigated the interaction of charged droplets generated by up to 91 electrospray sources using a full Lagrangian model. The highly intensive computational load was successfully handled by implementing the numerical code on a desktop supercomputer with 10 Tera FLOPS of computational power delivered by Graphics Processing Units (GPUs). The results from the spray profile model and numerical simulation were compared to experimental data and good agreements were demonstrated. The simplicity of the spray profile model can conveniently guide the design and operation of multiplexed electrosprays for a range of promising applications. Published by Elsevier Ltd.

Journal Title

Journal of Aerosol Science

Volume

46

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

20

Last Page

33

WOS Identifier

WOS:000301760900003

ISSN

0021-8502

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