On nontrivial traveling waves in thin film flows including contact lines

Lou Kondic, Javier A. Diez

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We discuss dynamics of thin liquid films spreading down an inclined plane. The fronts of these films are known to be unstable with respect to formation of finger-like and triangular patterns. In this work, we concentrate on one particular aspect of these flows, and that is the existence of nonlinear traveling waves. We find evidence for presence of these waves for all inclination angles less than 90°. To understand better the relevant pattern formation mechanism, we explore via numerical simulations the bifurcation structure of the stability diagram close to the critical wavenumber. The recovered structure is consistent with the existence of a subcritical bifurcation. We discuss the connection between the bifurcation diagram and the existence of nontrivial traveling waves.

Original languageEnglish (US)
Pages (from-to)135-144
Number of pages10
JournalPhysica D: Nonlinear Phenomena
Volume209
Issue number1-4 SPEC. ISS.
DOIs
StatePublished - Sep 15 2005

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Applied Mathematics

Keywords

  • Bifurcations
  • Contact line
  • Liquid thin films

Fingerprint Dive into the research topics of 'On nontrivial traveling waves in thin film flows including contact lines'. Together they form a unique fingerprint.

Cite this