Rheology of thin films from flow observations

Bruno Figliuzzi (1) , Dominique Jeulin (1) , Anael Lemaitre (2) , Gabriel Fricout (3) , Jean-Jacques Piezanowski (3) , Paul Manneville (4)

1 CMM - Centre de Morphologie Mathématique
2 Rhéophysique
3 ArcelorMittal Maizières Research SA
4 LadHyX - Laboratoire d'hydrodynamique

A major challenge regarding thin films is the characterization of their rheology and the measurement of the fluid physical parameters. For complex fluids, performing direct rheology measurements is extremely difficult considering the geometric characteristics of thin films. In this paper, we present a method for characterizing the film rheology based on measurements at regular time intervals of the film surface topography. These measures allow us, by solving an inverse problem, to validate a model of rheology for the thin fluid film and to determine the physical parameters specific to this model.

Mots clés: Complex fluids; Film rheology; Film surface topography; Geometric characteristics; Physical parameters; Rheology measurement; Thin fluid films; Time interval; Inverse problems; Rheology; Thin films; Elasticity

Domaines: Matériaux

Bruno Figliuzzi, Dominique Jeulin, Anael Lemaitre, Gabriel Fricout, Jean-Jacques Piezanowski, et al.. Rheology of thin films from flow observations. Experiments in Fluids, 2012, 53 (5), pp.1289-1299. ⟨10.1007/s00348-012-1359-4⟩. ⟨hal-00833519⟩