Interfacial instabilities driven by chemical reactions

A. Pereira, P.M.J. Trevelyan, U. Thiele, S. Kalliadasis

Research output: Contribution to journalArticlepeer-review


We investigate the interaction of thin films with chemical reactions by using as a model system a horizontal film with a reactive mixture of insoluble surfactants on its free surface. The reaction is modeled by a bistable/excitable FitzHugh-Nagumo (FHN) prototype. The chemical reaction can destabilize the film leading to the propagation of solitary pulses on its free surface.
Original languageEnglish
Pages (from-to)121 - 125
Number of pages4
JournalEuropean Physical Journal - Special Topics
Publication statusPublished - 14 Jan 2009


  • thin films
  • fitz hugh-nagumo
  • interfacial instabilities


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