https://doi.org/10.1140/epjst/e2009-00895-9
Stability analysis of stratified coating flow of shear-thinning fluids
Université de Lyon, Université Lyon 1, INSA de Lyon, École Centrale de Lyon, Laboratoire de Mécanique des Fluides et d'Acoustique UMR CNRS 5509, Lyon, France
Corresponding author: severine.millet@insa-lyon.fr
This study is a linear stability analysis of a two-layer non-Newtonian film flow driven by gravity down an inclined plane. The fluids rheology is described by the Carreau law. The effects of density stratification are studied in the case of a less viscous layer adjacent to the wall, which is favourable to interfacial instabilities. We highlight that shear-thinning can have stabilizing as well as destabilizing effects according to the wavelength and the position of the Carreau fluid layers.
© EDP Sciences, Springer-Verlag, 2009
