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CLC number: O35

On-line Access: 2012-08-03

Received: 2012-02-21

Revision Accepted: 2012-07-09

Crosschecked: 2012-07-11

Cited: 3

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Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2012 Vol.13 No.8 P.584-595


Numerical investigation of the influence of companion drops on drop-on-demand ink jetting

Author(s):  Hai-yun Zhang, Jin Wang, Guo-dong Lu

Affiliation(s):  Institution of Engineering and Computer Graphics, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   gray_sun@zju.edu.cn, dwjcom@zju.edu.cn

Key Words:  Drop-on-demand (DOD) ink jetting, Droplet deviation, Companion drops, Computational fluid dynamics (CFD), Volume-of-fluid (VOF) method

Hai-yun Zhang, Jin Wang, Guo-dong Lu. Numerical investigation of the influence of companion drops on drop-on-demand ink jetting[J]. Journal of Zhejiang University Science A, 2012, 13(8): 584-595.

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journal="Journal of Zhejiang University Science A",
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%T Numerical investigation of the influence of companion drops on drop-on-demand ink jetting
%A Hai-yun Zhang
%A Jin Wang
%A Guo-dong Lu
%J Journal of Zhejiang University SCIENCE A
%V 13
%N 8
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%@ 1673-565X
%D 2012
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1200045

T1 - Numerical investigation of the influence of companion drops on drop-on-demand ink jetting
A1 - Hai-yun Zhang
A1 - Jin Wang
A1 - Guo-dong Lu
J0 - Journal of Zhejiang University Science A
VL - 13
IS - 8
SP - 584
EP - 595
%@ 1673-565X
Y1 - 2012
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1200045

In this study we characterized and investigated the specific phenomenon of “companion drops” in the drop-on- demand (DOD) ink jetting process. A series of simulations based on a piezoelectric DOD printhead system is presented, adapting the volume-of-fluid (VOF) interface-capturing method to track the boundary evolution and model the interfacial physics. The results illustrate the causality between the generation of companion drops and droplet deviation behavior, as well as their close correlations with ink jetting straightness and printing accuracy. The characteristics of companion drops are summarized and compared with those of satellite drops. Also, a theoretical mechanism for the generation of companion drops is presented, and their effects and behaviors are analyzed and discussed. Finally, the effects of critical factors on the generation of companion drops are investigated and characterized based on variations in the printable pressure range. Recommendations are given for the suppression of companion drops and for the improvement of printing accuracy.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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