par Dehaeck, Sam ;Talvy, Samuel Lucien ;Rednikov, Alexei ;Queeckers, Patrick ;Colinet, Pierre
Référence (26-29 September 2010: Kyoto), 5th ITT Workshop on TWO-PHASE SYSTEMS FOR GROUND AND SPACE APPLICATIONS
Publication Publié, 2010-09-26
Abstract de conférence
Résumé : The BAMBI (Bifurcation Anomalies in Marangoni- Bénard Instabilities) experiment has been successfully flown onboard the FOTON-M2 satellite in June 2005. During the 4 days available for the experiment, a 5mm-thick 200 cSt silicone oil layer in a 10x10cm2 wide container, and in contact with a similarly-sized Helium gas layer was heated from “below” and cooled from “above”. By varying the amount of heating applied at each experimental step, a range of temperature differences across the liquid and gas layers was scanned and the onset and evolution of the Marangoni-Bénard instability typical for this type of configuration (Colinet et al. 2001) was examined. The used optical diagnostics were Infrared Thermography of the liquid/gas interface, PTV (multiple views and heights in the liquid layer), Wollaston Interferometry and Electronic Speckle Pattern Interferometry. In the present contribution, only velocity results obtained by PTV in the interface plane are presented.