TY - GEN
T1 - The dynamic behavior of droplet formation on micropillar surface during a dewetting process
AU - Dwiyantoro, Bambang Arip
AU - Chau, Shiu Wu
PY - 2012
Y1 - 2012
N2 - The dynamic behavior of droplet formation on micropillar surface during a dewetting process is investigated in this paper via a numerical approach. The simulation results suggest that the formation of droplet is governed by the recoiling of captive wet region on the top surface of micropillar after two bridge-shaped meniscus detachments from neighboring droplets. The dimensionless group, i.e. the Ohnesorge number (Oh), the Capillary number (Ca) and the dimensionless liquid thickness (H), characterizes the dimensionless diameter (d) and formation time (td*) of droplet. Both can be expressed as the product of polynomial functions of dimensionless group, and approach to an asymptotic solution for H greater than unity.
AB - The dynamic behavior of droplet formation on micropillar surface during a dewetting process is investigated in this paper via a numerical approach. The simulation results suggest that the formation of droplet is governed by the recoiling of captive wet region on the top surface of micropillar after two bridge-shaped meniscus detachments from neighboring droplets. The dimensionless group, i.e. the Ohnesorge number (Oh), the Capillary number (Ca) and the dimensionless liquid thickness (H), characterizes the dimensionless diameter (d) and formation time (td*) of droplet. Both can be expressed as the product of polynomial functions of dimensionless group, and approach to an asymptotic solution for H greater than unity.
UR - http://www.scopus.com/inward/record.url?scp=84869196831&partnerID=8YFLogxK
U2 - 10.1109/NANO.2012.6322040
DO - 10.1109/NANO.2012.6322040
M3 - Conference contribution
AN - SCOPUS:84869196831
SN - 9781467321983
T3 - Proceedings of the IEEE Conference on Nanotechnology
BT - 2012 12th IEEE International Conference on Nanotechnology, NANO 2012
T2 - 2012 12th IEEE International Conference on Nanotechnology, NANO 2012
Y2 - 20 August 2012 through 23 August 2012
ER -