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논문 기본 정보

자료유형
학술대회자료
저자정보
Eunjeong Kim (POSTECH) Jehyun Baek (POSTECH)
저널정보
한국전산유체공학회 한국전산유체공학회 학술대회논문집 한국전산유체공학회 2012년도 추계학술대회 논문집
발행연도
2012.11
수록면
484 - 488 (5page)

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초록· 키워드

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Inkjet printing technology has been a focus of interest as a versatile technique for fabricating flexible displays, electronic circuits, small ceramic parts and M E M S components. The resolution of inkjet printing is determined by the droplet size, therefore, it is necessary to generate small droplets for finer-resolution. It is able to generate small droplets using a small diameter nozzle, however, very fine nozzles increase the risk of nozzle clogging. So it is advantageous to produce droplets that are smaller than the nozzle. Particular effort has been dedicated to produce droplets smaller than the nozzle diameter, however, a detailed study is still inadequate. This paper reports on a numerical study of droplet formation dynamics, particularly focusing on the influence of fluid properties on the formability of droplets smaller than the nozzle diameter. Numerical simulation is carried out using a volume-of-fluid model, and viscosity and surface tension were systematically varied to investigate its influence on the formability of droplets smaller than the nozzle diameter. The present study will be useful to make an appropriate guess on the fluid properties for producing droplets smaller than nozzle.

목차

Abstract
1. INTRODUCTION
2. NUMERICAL METHODS
3. RESULTS AND DISCUSSION
4. SUMMARY
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UCI(KEPA) : I410-ECN-0101-2014-422-000811077