Кл.слова (ненормированные):
Diffusion -- Microgravity experiments -- Soret effect -- Ternary mixtures -- Thermodiffusion -- Diffusion -- Glycols -- Interferometry -- Microgravity -- Microgravity processing -- Mixtures -- Space stations -- International Space stations -- Microgravity experiments -- Microgravity science glovebox -- Phase-stepping interferometry -- Soret effects -- Ternary mixtures -- Thermodiffusion -- Thermodiffusion coefficients -- Thermal diffusion in liquids
Аннотация: We report on thermodiffusion experiments conducted on the International Space Station ISS during fall 2016. These experiments are part of the DCMIX (Diffusion and thermodiffusion Coefficients Measurements in ternary Mixtures) project, which aims at establishing a reliable data base of non-isothermal transport coefficients for selected ternary liquid mixtures. The third campaign, DCMIX3, focuses on aqueous systems with water/ethanol/triethylene glycol as an example, where sign changes of the Soret coefficient have already been reported for certain binary subsystems. Investigations have been carried out with the SODI (Selectable Optical Diagnostics Instrument) instrument, a Mach-Zehnder interferometer set up inside the Microgravity Science Glovebox in the Destiny Module of the ISS. Concentration changes within the liquids have been monitored in response to an external temperature gradient using phase-stepping interferometry. The complete data set has been made available in spring 2017. Due to additionally available measurement time, it was possible to collect a complete data set at 30?C and an almost complete data set at 25?C, which significantly exceeds the originally envisaged measurements at a single temperature only. All samples could be measured successfully. The SODI instrument and the DCMIX experiments have proven reliable and robust, allowing to extract meaningful data even in case of unforeseen laser instabilities. First assessments of the data quality have revealed six out of 31 runs with some problems in image contrast and/or phase step stability that will require more sophisticated algorithms. This publication documents all relevant parameters of the conducted experiments and also events that might have an influence on the final results. The compiled information is intended to serve as a starting point for all following data evaluations. © 2018 Springer Science+Business Media B.V., part of Springer Nature
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Держатели документа:
Physikalisches Institut, Universitat Bayreuth, Bayreuth, Germany
Laboratoire des Fluides Complexes et leurs Reservoirs, UMR-5150, E2S - Univ Pau & Pays Adour / CNRS / TOTAL, 1 Allee du Parc Montaury, Anglet, France
Mechanical and Industrial Manufacturing Department, MGEP Mondragon Goi Eskola Politeknikoa, Mondragon, Spain
ESA-Estec, Noordwijk, Netherlands
Universidad Politecnica de Madrid, Madrid, Spain
MRC, CP165/62, Universite libre de Bruxelles, Av. F.D. Roosevelt, 50, Brussels, Belgium
Department of Quimica Fisica i Inorganica, Universitat Rovira i Virgili, Tarragona, Spain
Institute of Continuous Media Mechanics UB RAS, Perm, Russian Federation
Departamento de Fisica Aplicada I, Facultad de Fisica, Universidad Complutense, Madrid, Spain
Institute of Computational Modelling SB RAS, Federal Research Center KSC SB RAS, Akademgorodok, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Triller, T.; Bataller, H.; Bou-Ali, M. M.; Braibanti, M.; Croccolo, F.; Ezquerro, J. M.; Galand, Q.; Gavalda, J.; Lapeira, E.; Laveron-Simavilla, A.; Lyubimova, T.; Mialdun, A.; Zarate, J. M.O.D.; Rodriguez, J.; Ruiz, X.; Ryzhkov, I. I.; Shevtsova, V.; Vaerenbergh, S. V.; Kohler, W.