effects of some thermo-physical parameters on free convective heat and mass transfer over a vertical stretching surface at lowest level of heat energy in the presence of suction is investigated. the viscosity of the fluid is assumed to vary as a linear function of temperature and thermal conductivity is assumed constant. a similarity transformation is applied to reduce the governing equations i...

Cet entretien avec Jean-Luc Soret, directeur de l’association Visa pour l’image – Perpignan, a objet d’évoquer l’évolution d’une structure culturelle investie dans l’éducation aux médias depuis le début son histoire. En évoquant les missions la structure, phénomène concentration local et rayonnement global ainsi que l’intégration sociale dispositifs médiation, il explicite caractéristiques d’un...

In nature, unsaturated porous media, like soils or plant tissues, are often submitted to temperature gradients which can trigger water transport. A nanofluidic tool is employed here measure the changes in potential response variations a model geometry. Variations of -7.9 MPa/K observed agreement with previous measurements but differ from simple modeling, pointing at subtle couplings between nat...

The diffusive motion of foreign particles dispersed in a premelting solid is analyzed within the framework of irreversible thermodynamics. We determine the mass diffusion coefficient, thermal diffusion coefficient and Soret coefficient of the particles in the dilute limit, and find good agreement with experimental data. In contrast to liquid suspensions, the unique nature of premelting solids a...