Vol.3, No.4, 2007, pp.303-316, doi:10.3970/fdmp.2007.003.303
OPEN ACCESS
ARTICLE
Thin Films in the Presence of Chemical Reactions
  • A. Pereira1, P.M.J. Trevelyan2, U. Thiele3, S. Kalliadasis1
Department of Chemical Engineering, Imperial CollegeLondon, London SW7 2AZ, UK
Centre for Nonlinear Phenomena and Complex Systems, CP 231, Université Libre de Bruxelles, 1050 Brussels, Belgium
Max-Planck-Institutfür Physik komplexer Systeme, Nöthnitzer Str. 38 D-01187 Dresden, Germany. Presentaddress: School of Mathematics, Loughborough University, Loughborough LE11 3TU, UK
Abstract
We investigate the interaction between thin films and chemical reactions by using two prototype systems: a thin liquid film falling down a planar inclined substrate in the presence of an exothermic chemical reaction and a horizontal thin liquid film with a reactive mixture of insoluble surfactants on its surface. In the first case the chemical reaction has a stabilizing influence on the dynamics of the film and dampens the free-surface solitary pulses. In the second case the chemical reaction can destabilize the film and lead to the formation of free-surface solitary pulses.
Keywords
Thin films, chemical reactions, thermal/solutal Marangoni effect.
Cite This Article
Pereira, A., Trevelyan, P., Thiele, U., Kalliadasis, S. (2007). Thin Films in the Presence of Chemical Reactions. FDMP-Fluid Dynamics & Materials Processing, 3(4), 303–316.