Flow simulation and visualization of a microdroplet generator

Chung Chu Chen, Chen-Kuei Chung, Shih Huei Chen, Tong Ming Liou

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper investigates droplet characteristics and refill time of the microdroplet generators with different shape of actuator and actuation amplitude. The simulation results show that a ring-type actuator provides the best performance on the droplet trajectory and ink refill time. Droplets generated by the ring-type actuator have the shortest initial pillar length and the least velocity inconsistency. Hence, the occurrence of satellite droplet is diminished. Square- and circle-type actuators have a refill time of 67 and 61 μs, respectively, up to 37% larger than the value of 49 μs of the ring-type actuator. For the ring-type actuator, the droplet size, tip velocity, and refill time are in proportion to the actuation amplitude for a given nozzle diameter.

Original languageEnglish
Pages (from-to)141-152
Number of pages12
JournalJournal of Flow Visualization and Image Processing
Volume11
Issue number2
Publication statusPublished - 2004 Dec 1

Fingerprint

Gas generators
Flow simulation
Flow visualization
generators
Actuators
actuators
simulation
rings
actuation
inks
Ink
nozzles
Nozzles
proportion
Trajectories
trajectories
Satellites
occurrences

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Computer Science Applications

Cite this

Chen, Chung Chu ; Chung, Chen-Kuei ; Chen, Shih Huei ; Liou, Tong Ming. / Flow simulation and visualization of a microdroplet generator. In: Journal of Flow Visualization and Image Processing. 2004 ; Vol. 11, No. 2. pp. 141-152.
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Flow simulation and visualization of a microdroplet generator. / Chen, Chung Chu; Chung, Chen-Kuei; Chen, Shih Huei; Liou, Tong Ming.

In: Journal of Flow Visualization and Image Processing, Vol. 11, No. 2, 01.12.2004, p. 141-152.

Research output: Contribution to journalArticle

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