Zerrendatu honen arabera: egilea "8d28dd2fbc4226680a49579c47b486e5"
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Benchmark values for the Soret, thermodiffusion and molecular diffusion coefficients of the ternary mixture tetralin+isobutylbenzene+n-dodecane with 0.8-0.1-0.1 mass fraction
Bou-Ali, M. Mounir; Ahadi, A.; Alonso de Mezquia, David; Galand, Q.; Gebhardt, M.; Khlybov, O.; Köhler, W.; Larrañaga, Miren; Legros, J. C.; Lyubimova, T.; Mialdun, Aliaksandr; Ryzhkov, Ilya I.; Saghir, M. Z.; Shevtsova, Valentina; Van Vaerenbergh, S. (Springer Nature, 2015)With the aim of providing reliable benchmark values, we have measured the Soret, thermodiffusion and molecular diffusion coefficients for the ternary mixture formed by 1,2,3,4-tetrahydronaphthalene, isobutylbenzene and ... -
A comprehensive study of diffusion, thermodiffusion, and Soret coefficients of water-isopropanol mixtures
Mialdun, Aliaksandr; Yasnou, V.; Shevtsova, Valentina; Königer, A.; Kohler, W.; Alonso de Mezquia, David; Bou-Ali, M. Mounir (AIP Publishing, 2012)We report on the measurement of diffusion (D), thermodiffusion (DT), and Soret (ST) coefficients in water-isopropanol mixtures by three different instrumental techniques: thermogravitational column in combination with ... -
Diffusion in liquid mixtures
Bou-Ali, M. Mounir; Shevtsova, Valentina (Springer Nature, 2023)The understanding of transport and mixing in fluids in the presence and in the absence of external fields and reactions represents a challenging topic of strategic relevance for space exploration. Indeed, mixing and transport ... -
Diffusion of Quinine with Ethanol as a Co-Solvent in Supercritical CO2
Shevtsova, Valentina (MDPI, 2020)This study aims at contributing to quinine extraction using supercritical CO2 and ethanol as a co-solvent. The diffusion coefficients of quinine in supercritical CO2 are measured using the Taylor dispersion technique when ... -
Difusioa, Termodifusioa eta Soret koefizienteak kalkulatzeko erabiltzen diren teknika desberdinak
Lapeira, Estela; Bou-Ali, M. Mounir (UEU, 2015) -
Digital Interferometry Applied to Thermogravitational Technique
Lapeira, Estela; Aristimuño, Patxi Xabier; Bou-Ali, M. Mounir (Springer, 2018)In this work, we have applied Optical Digital Interferometry approach to thermogravitational micro-column technique. By the new analysis, we examine the entire height of the micro-column and determine the complete concentration ... -
Effect of the supporting disks shape on nonlinear flow dynamics in a liquid bridge
Gaponenko, Yuri; Yasnou, V.; Mialdun, Aliaksandr; Nepomnyashchy, Alexander; Shevtsova, Valentina (AIP Publishing, 2021)The stability of convective flows in a non-homogeneous temperature field is affected by the shape of the container hosting the fluid. We present a nonlinear two-phase computational study of convection in a liquid bridge ... -
Investigation of diffusive and optical properties of vapour-air mixtures: The benefits of interferometry
Shevtsova, Valentina (Elsevier Ltd., 2021)While interferometry has been widely used for diffusion measurements in liquid mixtures, it was hardly applied so far to vapour-gas mixtures. The present work aims to bridge this gap. Using an improved Mach–Zehnder ... -
Mass transport in LiBr–H2O solutions: Coupling between diffusion, thermodiffusion, and composition
Perez de Luco, Irene; Errarte, Ane; Fernandez de Arroiabe, Peru; Mialdun, Aliaksandr; Mojtabi, A.; Costeseque, P.; Shevtsova, Valentina; Bou-Ali, M. Mounir (AIP, 2025)We present an experimental investigation of mass transport phenomena in aqueous lithium bromide (LiBr–H2O) solutions, focusing on both molecular diffusion and thermodiffusion (Soret effect). Our results show a non-monotonic ... -
Measurement of optical properties of aqueous lithium bromide solutions with and without surfactant for potential use in interferometric analysis of absorption systems
Perez de Luco, Irene; Mialdun, Aliaksandr; Fernandez de Arroiabe, Peru; Errarte, Ane; Shevtsova, Valentina; Bou-Ali, M. Mounir (ACS, 2025)The refractive indices of aqueous lithium bromide (LiBr–H2O) solutions were measured over a wide range of mass fractions, from 0 to 0.62 kg/kg (62%), at seven wavelengths between 436.1 and 655 nm. Measurements were conducted ... -
The Measurement of Soret and Thermodiffusion Coefficients in Binary and Ternary Liquid Mixtures
Bou-Ali, M. Mounir; Shevtsova, Valentina (Springer Nature, 2023)This review provides an overview of the major, currently used techniques for investigating the Soret effect and measuring thermodiffusion and Soret coefficients, and in most cases also isothermal Fickian diffusion coefficients, ... -
Progress in multicomponent thermodiffusion studies in connection with the DCMIX space experiments
Shevtsova, Valentina; Bou-Ali, M. Mounir (AIP Publishing, 2024)Understanding of thermodiffusion in ternary mixtures has made significant progress during the course of the DCMIX (Diffusion and Thermodiffusion Coefficients in ternary mixtures) microgravity experiments onboard the ... -
A ternary mixture at the border of Soret separation stability
Prokopev, Sergei; Lyubimova, Tatyana; Mialdun, Aliaksandr; Shevtsova, Valentina (Royal Society of Chemistry, 2021)Ternary mixtures with the Soret effect are prone to triple-diffusive convection in a thermal field. The Soret coefficients of the toluene–methanol–cyclohexane mixture, measured in microgravity at a given composition ... -
The Soret coefficients of the ternary system water/ethanol/triethylene glycol and its corresponding binary mixtures
Bou-Ali, M. Mounir; Lapeira, Estela; Shevtsova, Valentina (Springer, 2021)Thermodiffusion in ternary mixtures is considered prototypic for the Soret effect of truly multicomponent systems. We discuss ground-based measurements of the Soret coefficient along the binary borders of the Gibbs triangle ... -
Transport properties of the binary mixtures of the three organic liquids toluene, methanol, and cyclohexane
Lapeira, Estela; Bou-Ali, M. Mounir (AIP Publishing, 2017)We report on the measurements of diffusion (D), thermodiffusion (DT), and Soret (ST) coefficients in binary pairs of the ternary system toluene-methanol-cyclohexane using different instrumental techniques: microgravity ...
