Кл.слова (ненормированные):
Topical Issue: Thermal non-equilibrium phenomena in multi-component fluids -- Benzene -- Data handling -- Eigenvalues and eigenfunctions -- Interferometry -- Laser beams -- Mixtures -- Refractive index -- Diffusion matrices -- Digital interferometries -- Interferometric images -- Multicomponent fluid -- Optical beam deflection -- Soret coefficients -- Spatial variations -- Temporal and spatial evolutions -- Diffusion
Аннотация: Abstract: The paper is devoted to processing the data of DCMIX 1 space experiment. In this experiment, the Optical digital interferometry was used to measure the diffusion and Soret coefficients in the ternary mixture of 1,2,3,4-tetrahydronaphthalene, isobutylbenzene and n-dodecane at mass fractions of 0.8/0.1/0.1 and at 25°C. The raw interferometric images were processed to obtain the temporal and spatial evolution of refractive indices for two laser beams of different wavelengths. The method for extracting the diffusion and thermal diffusion coefficients originally developed for optical beam deflection was extended to optical digital interferometry allowing for the spatial variation of refractive index along the diffusion path. The method was validated and applied to processing the data for Soret and diffusion steps in 5 experimental runs. The obtained results for the Soret coefficients and one of the eigenvalues of diffusion matrix showed acceptable agreement within each step. The second eigenvalue was not determined with sufficient accuracy. Graphical abstract: [Figure not available: see fulltext.]. © 2015, EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.
Scopus
Держатели документа:
Institute of Continuous Media Mechanics, UB RAS, Koroleva St. 1Perm, Russian Federation
Institute of Computational Modelling, SB RASAkademgorodok, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Ryzhkov, I.I.; Рыжков, Илья Игоревич; Lyubimova, T.P.