caa a22 4500 463235509 CHVBK 20180405153255.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10404-006-0118-3 doi (NATIONALLICENCE)springer-10.1007/s10404-006-0118-3 Thermocapillary convection and interface deformation in a liquid film within a micro-slot with structured walls [Elektronische Daten] [Tatiana Gambaryan-Roisman, Peter Stephan] Thermocapillary convection in a thin liquid film inside a micro-slot with structured walls kept at different temperatures is studied. The liquid film is wetting the substrate wall and is separated from the cover wall by a gas layer. If the slot walls are structured, the temperature at the liquid-gas interface is non-uniform. The temperature variation induces thermocapillary stresses which bring the liquid into motion and lead to the interface deformation. We investigate the film flow inside the micro-slot, the heat transfer, the liquid-gas interface deformations and the film stability in the framework of the long-wave theory. We show that the amplitude of the interface deformation increases with increasing of the wall structure period. We demonstrate that the structured walls lead to the heat transfer enhancement, which effect is for the studied range of parameters stronger if the cover wall is structured. We also show that the wall structure enhances the long-wave Marangoni instability. The destabilizing effect of the substrate structure is stronger than that of the cover wall structure. Springer-Verlag, 2006 Thermocapillary convection nationallicence Structured walls nationallicence Marangoni instability nationallicence Long-wave theory nationallicence Gambaryan-Roisman Tatiana Chair of Technical Thermodynamics, Darmstadt University of Technology, Petersenstr. 30, 64287, Darmstadt, Germany aut Stephan Peter Chair of Technical Thermodynamics, Darmstadt University of Technology, Petersenstr. 30, 64287, Darmstadt, Germany aut Microfluidics and Nanofluidics Springer-Verlag 3/2(2007-04-01), 207-215 1613-4982 3:2<207 2007 3 10404 https://doi.org/10.1007/s10404-006-0118-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10404-006-0118-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gambaryan-Roisman Tatiana Chair of Technical Thermodynamics, Darmstadt University of Technology, Petersenstr. 30, 64287, Darmstadt, Germany aut NATIONALLICENCE 700 1- Stephan Peter Chair of Technical Thermodynamics, Darmstadt University of Technology, Petersenstr. 30, 64287, Darmstadt, Germany aut NATIONALLICENCE 773 0- Microfluidics and Nanofluidics Springer-Verlag 3/2(2007-04-01), 207-215 1613-4982 3:2<207 2007 3 10404 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer