Spontaneous imbibition of a liquid film wetting a wall-mounted cylinder corner

Suo, Si

doi:10.1039/d3sm01561k

Soft Matter

2024

DOI: 10.1039/d3sm01561k

|View full text |Cite

Spontaneous imbibition of a liquid film wetting a wall-mounted cylinder corner

Si Suo

Abstract: The advance of the wetting front follows the Lucas–Washburn kinetics of t1/2 scaling and the scaling coefficient strongly depends on the wettability conditions.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Dewetting of a corner film wrapping a wall-mounted cylinder

Suo,

Habibi Khorasani,

Bagheri

2024

J. Fluid Mech.

View full text Add to dashboard Cite

In this study, we investigate the stability of a film that is attached to a corner between a cylinder and a substrate, using a combination of theoretical and numerical approaches. Notably, we place our focus on flat and thin films where the contact line is almost perpendicular to the cylinder wall whereas a small angle forms between the contact line and the substrate, and the film size is smaller than the cylinder radius. The film stability, which depends on the film size and the wall wettability, is first predicted by a standard linear stability analysis (LSA) within the long-wave theoretical framework. We find that the film size plays the most important role in controlling the film stability. Specifically, the thicker the film is, the less sensitive it becomes to the large-wavenumber perturbation. The wall wettability mainly impacts the growth rates of perturbations and slightly influences the marginal stability and postinstability patterns of wrapping films. We compare the LSA predictions with numerical results obtained from a disjoining pressure model (DPM) and volume-of-fluid (VOF) simulations, which provide more insights into the film breakup process. At the early stage there is a strong agreement between the LSA predictions and the DPM results. Notably, as the perturbation grows, thin film regions connecting two neighbouring satellite droplets form which may eventually lead to a stable or temporary secondary droplet, an aspect which the LSA is incapable of capturing. In addition, the VOF simulations suggest that beyond a critical film size, merging between two neighbouring drops becomes involved during the breakup stage. Therefore, the LSA predictions are able to provide only an upper limit on the final number of satellite droplets.

show abstract

Dewetting of a corner film wrapping a wall-mounted cylinder

Suo,

Habibi Khorasani,

Bagheri

2024

J. Fluid Mech.

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Spontaneous imbibition of a liquid film wetting a wall-mounted cylinder corner

Abstract: The advance of the wetting front follows the Lucas–Washburn kinetics of t1/2 scaling and the scaling coefficient strongly depends on the wettability conditions.

Cited by 1 publication

References 35 publications

Dewetting of a corner film wrapping a wall-mounted cylinder

Dewetting of a corner film wrapping a wall-mounted cylinder

Contact Info

Product

Resources

About