Emmanuelle Rio
University of Paris-Sud
Publication
Featured researches published by Emmanuelle Rio.
npj Microgravity | 2015
Pavel Yazhgur; Dominique Langevin; Hervé Caps; Vincent Klein; Emmanuelle Rio; Anniina Salonen
Antifoams are widely used to control or to avoid foam production. In order to work, antifoam particles need to break foam films efficiently, which many antifoams do very well. However, once they have broken a film, to continue to be effective they need to be transported to the next film. We show, for the first time, that buoyancy has an important part in the transport of the antifoam particles. In microgravity, where buoyancy and gravitational drainage are strongly slowed down, diffusion leads to poor antifoam performance. The foam is stable for the duration of the experiment, whereas on Earth the foam starts to disappear immediately. Indeed, microgravity renders highly efficient antifoam practically useless.
Advances in Colloid and Interface Science | 2017
Emmanuelle Rio; François Boulogne
A solid withdrawn from a liquid bath entrains a film. In this review, after recalling the predictions and results for pure Newtonian liquids coated on simple solids, we analyze the deviations to this ideal case exploring successively three potential sources of complexity: the liquid-air interface, the bulk rheological properties of the liquid and the mechanical or chemical properties of the solid. For these different complexities, we show that significant effects on the film thickness are observed experimentally and we summarize the theoretical analysis presented in the literature, which attempt to rationalize these measurements.
Langmuir | 2018
Lorène Champougny; Jonas Miguet; Robin Henaff; Frédéric Restagno; François Boulogne; Emmanuelle Rio
Although soap films are prone to evaporate due to their large surface to volume ratio, the effect of evaporation on macroscopic film features has often been disregarded in the literature. In this work, we experimentally investigate the influence of environmental humidity on soap film stability. An original experiment allows to measure both the maximum length of a film pulled at constant velocity and its thinning dynamics in a controlled atmosphere for various values of the relative humidity [Formula: see text]. At first order, the environmental humidity seems to have almost no impact on most of the film thinning dynamics. However, we find that the film length at rupture increases continuously with [Formula: see text]. To rationalize our observations, we propose that film bursting occurs when the thinning due to evaporation becomes comparable to the thinning due to liquid drainage. This rupture criterion turns out to be in reasonable agreement with an estimation of the evaporation rate in our experiment.
Physical Review Letters | 2005
Emmanuelle Rio; Adrian Daerr; Bruno Andreotti; Laurent Limat
Soft Matter | 2014
Armando Maestro; Emmanuelle Rio; Wiebke Drenckhan; Dominique Langevin; Anniina Salonen
Langmuir | 2006
Emmanuelle Rio; Adrian Daerr; François Lequeux; Laurent Limat
Journal of Fluid Mechanics | 2009
Kåre Hartvig Jensen; Emmanuelle Rio; Rasmus Hansen; Christophe Clanet; Tomas Bohr
Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2011
Jhonny A. Rodrigues; Emmanuelle Rio; J. Bobroff; Dominique Langevin; Wiebke Drenckhan
Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2012
A. Testouri; Laura R. Arriaga; C. Honorez; Meik Ranft; Jhonny A. Rodrigues; A. van der Net; A. Lecchi; Anniina Salonen; Emmanuelle Rio; Reine-Marie Guillermic; Dominique Langevin; Wiebke Drenckhan
Journal of Colloid and Interface Science | 2004
Emmanuelle Rio; Adrian Daerr; Laurent Limat