Abstract
The resonant oscillation of a sessile droplet on the electrohydrodynamic (EHD) jetting nozzle was studied using a series of sinusoidal and square pulse voltage signal. At small amplitude oscillations, the lowest mode resonant frequency depended on a contact angle and the explicit relationship was developed assuming one-dimensional standing capillary wave. When the meniscus was oscillated with a higher voltage amplitude for jetting, its height became maximum at the phase delay of about Π/2 from the maximum applied voltage signal, which can be predicted in a harmonic oscillator model. In addition, there existed an effective resonant frequency where the meniscus oscillation was amplified quickly to initiate a jetting earlier, and the jetting continued every cycle afterwards. Therefore, the resonant oscillation would be effectively used for high speed printing of a simple regular pattern where the jetting should occur at a constant frequency.
| Original language | English |
|---|---|
| Article number | 05HC03 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 53 |
| Issue number | 5 SPEC. ISSUE 3 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
Cite this
Resonant oscillation phenomena of a sessile droplet on electrohydrodynamic jetting nozzle. / Kim, Ho; Yang, Jungkeun; Chung, Jaewon.
In: Japanese Journal of Applied Physics, Vol. 53, No. 5 SPEC. ISSUE 3, 05HC03, 01.01.2014.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Resonant oscillation phenomena of a sessile droplet on electrohydrodynamic jetting nozzle
AU - Kim, Ho
AU - Yang, Jungkeun
AU - Chung, Jaewon
PY - 2014/1/1
Y1 - 2014/1/1
N2 - The resonant oscillation of a sessile droplet on the electrohydrodynamic (EHD) jetting nozzle was studied using a series of sinusoidal and square pulse voltage signal. At small amplitude oscillations, the lowest mode resonant frequency depended on a contact angle and the explicit relationship was developed assuming one-dimensional standing capillary wave. When the meniscus was oscillated with a higher voltage amplitude for jetting, its height became maximum at the phase delay of about Π/2 from the maximum applied voltage signal, which can be predicted in a harmonic oscillator model. In addition, there existed an effective resonant frequency where the meniscus oscillation was amplified quickly to initiate a jetting earlier, and the jetting continued every cycle afterwards. Therefore, the resonant oscillation would be effectively used for high speed printing of a simple regular pattern where the jetting should occur at a constant frequency.
AB - The resonant oscillation of a sessile droplet on the electrohydrodynamic (EHD) jetting nozzle was studied using a series of sinusoidal and square pulse voltage signal. At small amplitude oscillations, the lowest mode resonant frequency depended on a contact angle and the explicit relationship was developed assuming one-dimensional standing capillary wave. When the meniscus was oscillated with a higher voltage amplitude for jetting, its height became maximum at the phase delay of about Π/2 from the maximum applied voltage signal, which can be predicted in a harmonic oscillator model. In addition, there existed an effective resonant frequency where the meniscus oscillation was amplified quickly to initiate a jetting earlier, and the jetting continued every cycle afterwards. Therefore, the resonant oscillation would be effectively used for high speed printing of a simple regular pattern where the jetting should occur at a constant frequency.
UR - http://www.scopus.com/inward/record.url?scp=84903303897&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84903303897&partnerID=8YFLogxK
U2 - 10.7567/JJAP.53.05HC03
DO - 10.7567/JJAP.53.05HC03
M3 - Article
AN - SCOPUS:84903303897
VL - 53
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 5 SPEC. ISSUE 3
M1 - 05HC03
ER -