{"id":19302,"date":"2025-01-06T18:11:03","date_gmt":"2025-01-06T17:11:03","guid":{"rendered":"https:\/\/navier-lab.fr\/?post_type=event&#038;p=19302"},"modified":"2025-01-06T18:11:03","modified_gmt":"2025-01-06T17:11:03","slug":"seminaire-rmp-dr-jean-baptiste-salmon","status":"publish","type":"event","link":"https:\/\/navier-lab.fr\/en\/agenda\/seminaire-rmp-dr-jean-baptiste-salmon\/","title":{"rendered":"S\u00e9minaire RMP: Dr. Jean-Baptiste Salmon (Laboratory of the Future, Bordeaux)"},"content":{"rendered":"<p><section class=\"kc-elm kc-css-952329 kc_row\"><div class=\"kc-row-container  kc-container\"><div class=\"kc-wrap-columns\"><div class=\"kc-elm kc-css-826752 kc_col-sm-12 kc_column kc_col-sm-12\"><div class=\"kc-col-container\">\n<div class=\"kc-elm kc-css-29437 kc-title-wrap \">\n\n\t<h1 class=\"kc_title\">Confined directional drying: free convection, humidity-insensitive evaporation, and the case of nanoparticles<\/h1>\n<\/div>\n<\/div><\/div><\/div><\/div><\/section><section class=\"kc-elm kc-css-927107 kc_row\"><div class=\"kc-row-container  kc-container\"><div class=\"kc-wrap-columns\"><div class=\"kc-elm kc-css-767879 kc_column kc_col-sm-12\"><div class=\"kc-col-container\"><div class=\"kc-elm kc-css-741701 kc_text_block\"><\/p>\n<h2><strong>Abstract:<\/strong><\/h2>\n<p class=\"western\" align=\"justify\"><font size=\"3\">Confined directional drying refers to a model experiment for the study of mass transport phenomena that occur during the drying of a complex fluid. In such experiments, a dilute complex fluid is confined within a capillary with cross-sectional dimensions < 100 \u00b5m. When the air\/liquid meniscus remains trapped at the outlet of the capillary, solvent evaporation induces a flow that continuously accumulates the non-volatile solute at the tip of the cell.<\/font><\/p>\n<p class=\"western\" align=\"justify\"><font size=\"3\">In this presentation, I will focus on three different aspects of such experiments : (i) the role of free convection on the concentration process in the case of a dilute solution\/dispersion, (ii) the impact of the solute concentration on the driving force of evaporation which can lead to humidity-insensitive evaporation in the case of polymer solutions, and (iii) the case of a dispersion of nanoparticles. For this last point, we have developed PDMS microfludic chips for confined directional drying experiments, and we have exploited \u00a0hydrophilic fillers naturally present in the PDMS matrix to measure the water potential and thus obtain a quantitative description of the process.<\/font><\/p>\n<p>\n<\/div><\/div><\/div><\/div><\/div><\/section><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Confined directional drying: free convection, humidity-insensitive evaporation, and the case of nanoparticles<\/p>\n","protected":false},"author":161,"featured_media":0,"template":"","class_list":["post-19302","event","type-event","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/event\/19302","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/event"}],"about":[{"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/types\/event"}],"author":[{"embeddable":true,"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/users\/161"}],"wp:attachment":[{"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/media?parent=19302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}