Capillary filling in closed-end nanotubes

doi:10.1088/1674-1056/27/2/024701

Abstract Capillary filling in small length scale is an important process in nanotechnology and microfabrication. When one end of the tube or channel is sealed, it is important to consider the escape of the trapped gas. We develop a dynamic model on capillary filling in closed-end tubes, based on the diffusion-convection equation and Henry's law of gas dissolution. We systematically investigate the filling dynamics for various sets of parameters, and compare the results with a previous model which assumes a linear density profile of dissolved gas and neglect the convective term.

Keywords: capillary filling gas dissolution Henry's law

Received: 02 October 2017
Revised: 28 November 2017
Accepted manuscript online:

PACS:	47.60.-i	(Flow phenomena in quasi-one-dimensional systems)
	47.55.nb	(Capillary and thermocapillary flows)
	82.20.Wt	(Computational modeling; simulation)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 21434001, 21504004, and 21774004).

Corresponding Authors: Jiajia Zhou
E-mail: jjzhou@buaa.edu.cn

About author: 47.60.-i; 47.55.nb; 82.20.Wt

Cite this article:

Chen Zhao(赵晨), Jiajia Zhou(周嘉嘉), Masao Doi Capillary filling in closed-end nanotubes 2018 Chin. Phys. B 27 024701

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