Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Thermal capillary wave growth and surface roughening of nanoscale liquid films

Tools
- Tools
+ Tools

Zhang, Y., Sprittles, James E. and Lockerby, Duncan A. (2021) Thermal capillary wave growth and surface roughening of nanoscale liquid films. Journal Fluid Mechanics, 915 . A135. doi:10.1017/jfm.2021.164 ISSN 0022-1120.

[img]
Preview
PDF
WRAP-thermal-capillary-wave-growth-surface-roughening-nanoscale-liquid-films-Lockerby-2021.pdf - Accepted Version - Requires a PDF viewer.
Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0.

Download (2203Kb) | Preview
Official URL: https://doi.org/10.1017/jfm.2021.164

Request Changes to record.

Abstract

The well-known thermal capillary wave theory, which describes the capillary spectrum of the free surface of a liquid film, does not reveal the transient dynamics of surface waves, e.g. the process through which a smooth surface becomes rough. Here, a Langevin model is proposed that can capture this dynamics, goes beyond the long-wave paradigm which can be inaccurate at the nanoscale, and is validated using molecular dynamics simulations for nanoscale films on both planar and cylindrical substrates. We show that a scaling relation exists for surface roughening of a planar film and the scaling exponents belong to a specific universality class. The capillary spectra of planar films are found to advance towards a static spectrum, with the roughness of the surface W increasing as a power law of time W∼t1/8 before saturation. However, the spectra of an annular film (with outer radius h0) are unbounded for dimensionless wavenumber qh0<1 due to the Rayleigh–Plateau instability.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Faculty of Science, Engineering and Medicine > Science > Mathematics
Library of Congress Subject Headings (LCSH): Thin films, Surface roughness, Wave-motion, Theory of
Journal or Publication Title: Journal Fluid Mechanics
Publisher: Cambridge University Press
ISSN: 0022-1120
Official Date: 25 May 2021
Dates:
DateEvent
25 May 2021Published
31 March 2021Available
16 February 2021Accepted
Volume: 915
Article Number: A135
DOI: 10.1017/jfm.2021.164
Status: Peer Reviewed
Publication Status: Published
Reuse Statement (publisher, data, author rights): This article has been published in a revised form in Journal Fluid Mechanics [http://doi.org/XXX]. This version is published under a Creative Commons CC-BY-NC-ND. No commercial re-distribution or re-use allowed. Derivative works cannot be distributed. © Cambridge University Press 2021
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 17 February 2021
Date of first compliant Open Access: 1 October 2021
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
EP/N016602/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/S029966/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/P031684/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/P020887/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
Related URLs:
  • Publisher

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us