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 language | English |
|---|---|
| Pages (from-to) | 141-152 |
| Number of pages | 12 |
| Journal | Journal of Flow Visualization and Image Processing |
| Volume | 11 |
| Issue number | 2 |
| Publication status | Published - 2004 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Mechanical Engineering
- Computer Science Applications
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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 journal › Article
TY - JOUR
T1 - Flow simulation and visualization of a microdroplet generator
AU - Chen, Chung Chu
AU - Chung, Chen Kuei
AU - Chen, Shih Huei
AU - Liou, Tong Ming
PY - 2004/12/1
Y1 - 2004/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=27544456717&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=27544456717&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:27544456717
VL - 11
SP - 141
EP - 152
JO - Journal of Flow Visualization and Image Processing
JF - Journal of Flow Visualization and Image Processing
SN - 1065-3090
IS - 2
ER -