Issue 13, 2021

Wetting equilibrium in a rectangular channel

Abstract

When a capillary channel with corners is wetted by a fluid, there are regions where the fluid fills the whole cross-section and regions where only the corners are filled by the fluid. The fluid fraction of the partially-filled region, s*, is an important quantity related to the capillary pressure. We calculate the value of s* for channels with a cross-section slightly deviated from a rectangle: the height is larger in the center than those on the two short sides. We find that a small change in the cross-section geometry leads to a huge change of s*. This result is consistent with experimental observations.

Graphical abstract: Wetting equilibrium in a rectangular channel

Article information

Article type
Paper
Submitted
26 sen 2020
Accepted
03 dek 2020
First published
07 dek 2020

Soft Matter, 2021,17, 3594-3602

Wetting equilibrium in a rectangular channel

T. Yu, Q. Sun, C. Zhao, J. Zhou and M. Doi, Soft Matter, 2021, 17, 3594 DOI: 10.1039/D0SM01727B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements