[Текст] : статья / I.I. Ryzhkov // Lournal of Applied Mechanics and Technical Physics. - 2011. - Vol. 52, Iss. 4. - p. 560-570DOI 10.1134/S0021894411040080
. -
Аннотация: A model of vibrational convection of a binary mixture with the thermodiffusion effect is considered. The symmetries of model equations are found, depending on the values of physical parameters. A partially invariant solution, which describes separation of the binary mixture in a thermodiffusion column, is constructed and studied. The influence of streamwise vibrations on the flow regime and separation of the mixture is investigated.
Полный текст на сайте правообладателя
Доп.точки доступа:
Stepanova, I.V.; Степанова, Ирина Владимировна; Рыжков, Илья Игоревич
Труды сотрудников ИВМ СО РАН
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Group properties and exact solutions of equations for vibrational convection of a binary mixture
Effects of vibrations on dynamics of miscible liquids
[Text] / Y. Gaponenko, V. Shevtsova // Acta Astronaut. - 2010. - Vol. 66, Is. 01.02.2013. - pp. 174-182, DOI 10.1016/j.actaastro.2009.05.019. - Cited References: 10
. - ISSN 0094-5765
РУБ Engineering, Aerospace
Аннотация: We report on a numerical study of the mixing of two miscible fluids in gravitationally stable configuration. In the absence of external forces the diffusion process leads to the mixing of species. The aim of this study is to analyze the physical mechanism by which vibrations affect the mixing characteristic of two stratified miscible fluids. The translational periodic vibrations of a rigid cell filled with different mixtures of water-isopropanol are imposed. The vibrations with a constant frequency and amplitude are directed along the interface. In absence of gravity vibration-induced mass transport is incomparably faster than in diffusion regime. Our results highlight the strong interplay between gravity and vibrational impact, the relative weight of each effect is determined by ratio vibrational and classical Rayleigh numbers. (C) 2009 Elsevier Ltd. All rights reserved.
Доп.точки доступа:
Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Shevtsova, V.
Аннотация: We report on a numerical study of the mixing of two miscible fluids in gravitationally stable configuration. In the absence of external forces the diffusion process leads to the mixing of species. The aim of this study is to analyze the physical mechanism by which vibrations affect the mixing characteristic of two stratified miscible fluids. The translational periodic vibrations of a rigid cell filled with different mixtures of water-isopropanol are imposed. The vibrations with a constant frequency and amplitude are directed along the interface. In absence of gravity vibration-induced mass transport is incomparably faster than in diffusion regime. Our results highlight the strong interplay between gravity and vibrational impact, the relative weight of each effect is determined by ratio vibrational and classical Rayleigh numbers. (C) 2009 Elsevier Ltd. All rights reserved.
Доп.точки доступа:
Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Shevtsova, V.
Mixing Under Vibrations in Reduced Gravity
[Text] : статья / Y. A. Gaponenko, V. Shevtsova // Microgravity Science and Technology. - 2008. - Vol. 20, Iss. 3-4 . - p. 307-311, DOI 10.1007/s12217-008-9075-7
. - ISSN 0938-0108
Аннотация: The aim of this study is to analyze the physical mechanism by which vibrations affect the mixing characteristic of two initially stratified miscible fluids. The translational periodic vibrations of a rigid cell filled with different mixtures (Sc = 7125) are considered. The vibrations with a constant frequency are imposed parallel to the initially planar interface. The ability of the applied vibrations to enhance the flow is examined. At the early stage after imposing the vibrations the Kelvin-Helmholtz instability is observed in absence and at low level of gravity. Later in time the system undergoes a transition to Rayleigh-Taylor instability. With increasing of gravity level the life-time of Kelvin-Helmholtz instability is decreased. We found the critical value of Gr above which this instability do not developed.
Полный текст на сайте журнала
Доп.точки доступа:
Shevtsova, V.; Гапоненко, Юрий Анатольевич
Аннотация: The aim of this study is to analyze the physical mechanism by which vibrations affect the mixing characteristic of two initially stratified miscible fluids. The translational periodic vibrations of a rigid cell filled with different mixtures (Sc = 7125) are considered. The vibrations with a constant frequency are imposed parallel to the initially planar interface. The ability of the applied vibrations to enhance the flow is examined. At the early stage after imposing the vibrations the Kelvin-Helmholtz instability is observed in absence and at low level of gravity. Later in time the system undergoes a transition to Rayleigh-Taylor instability. With increasing of gravity level the life-time of Kelvin-Helmholtz instability is decreased. We found the critical value of Gr above which this instability do not developed.
Полный текст на сайте журнала
Доп.точки доступа:
Shevtsova, V.; Гапоненко, Юрий Анатольевич
The IVIDIL experiment onboard the ISS: Thermodiffusion in the presence of controlled vibrations
[Text] : статья / V. Shevtsova [et al.] // Comptes Rendus Mécanique. - 2011. - Vol. 339, Iss. 5. - p. 310–317DOI 10.1016/j.crme.2011.03.007
. -
Кл.слова (ненормированные):
Diffusion -- Thermodiffusion -- Soret effect -- Vibrations -- Microgravity -- Experiment -- Interferometry
Аннотация: The IVIDIL (Influence of VIbrations on DIffusion in Liquids) experiment was aimed at utilizing the International Space Station for investigating the effects of vibrations on liquid diffusion and thermodiffusion. The SODI-IVIDIL project of ESA is gathering together European, Canadian and Russian researchers with complementary skills to prepare and carry out the experiment, to process the raw data and perform numerical modeling of the phenomena. The experiment IVIDIL started on the October 5, 2009. In total 55 experimental runs were successfully completed by 20 January, 2010. A general description of the ISS facility related to the diffusion experiments and accessible for European researchers is briefly presented and some details about IVIDIL instrument are given. The scientific interest of this short article is focused on one of the objectives of the experiment: performing precise measurements of diffusion and thermodiffusion coefficients for binary mixtures in the absence of gravity. We demonstrate possibility of the experimental environment and report on the first results related to measurements of mass transport coefficients in the mixture with the negative Soret effect: 10% isopropanol (IPA)–90% water.
Полный текст на сайте правообладателя
Доп.точки доступа:
Shevtsova, V.; Mialdun, A.; Melnikov, D.; Ryzhkov, I.I.; Рыжков, Илья Игоревич; Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Saghir, Z.; Lyubimova, T.; Legros, J.C.
Кл.слова (ненормированные):
Diffusion -- Thermodiffusion -- Soret effect -- Vibrations -- Microgravity -- Experiment -- Interferometry
Аннотация: The IVIDIL (Influence of VIbrations on DIffusion in Liquids) experiment was aimed at utilizing the International Space Station for investigating the effects of vibrations on liquid diffusion and thermodiffusion. The SODI-IVIDIL project of ESA is gathering together European, Canadian and Russian researchers with complementary skills to prepare and carry out the experiment, to process the raw data and perform numerical modeling of the phenomena. The experiment IVIDIL started on the October 5, 2009. In total 55 experimental runs were successfully completed by 20 January, 2010. A general description of the ISS facility related to the diffusion experiments and accessible for European researchers is briefly presented and some details about IVIDIL instrument are given. The scientific interest of this short article is focused on one of the objectives of the experiment: performing precise measurements of diffusion and thermodiffusion coefficients for binary mixtures in the absence of gravity. We demonstrate possibility of the experimental environment and report on the first results related to measurements of mass transport coefficients in the mixture with the negative Soret effect: 10% isopropanol (IPA)–90% water.
Полный текст на сайте правообладателя
Доп.точки доступа:
Shevtsova, V.; Mialdun, A.; Melnikov, D.; Ryzhkov, I.I.; Рыжков, Илья Игоревич; Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Saghir, Z.; Lyubimova, T.; Legros, J.C.
Experimental evidence of heat transfer enhancement by vibrations. IVIDIL and TEVICON experiments
[Text] : тезисы / V. Shevtsova [et al.] // Abstracts of 6-th Int. conf. on two-phase systems for ground and space applications. - 2011. - p. 39
Доп.точки доступа:
Shevtsova, V.; Mialdun, A.; Melnikov, D.; Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Legros, J.C.
Доп.точки доступа:
Shevtsova, V.; Mialdun, A.; Melnikov, D.; Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Legros, J.C.
Experimental and numerical analysis of mass transfer in a binary mixture with Soret effect in the presence of weak convection
[Text] / Y. . Gaponenko, A. . Mialdun, V. . Shevtsova // Eur. Phys. J. E. - 2014. - Vol. 37, Is. 10. - Ст. 90, DOI 10.1140/epje/i2014-14090-5. - Cited References: 18. - This work is supported by the PRODEX programme of the Belgian Federal Science Policy Office and ESA.
. - ISSN 1292-8941. - ISSN 1292-895X
РУБ Chemistry, Physical + Materials Science, Multidisciplinary + Physics, Applied + Polymer Science
Аннотация: One of the targets of the experiment IVIDIL (Influence Vibrations on Diffusion in Liquids) conducted on-board ISS was to study the response of binary mixtures to vibrational forcing when the density gradient results from thermal and compositional variations. Compositional variations were created by the Soret effect and can strengthen or weaken the overall density gradient and, consequently, the response to vibrational forcing. We present the results of two experimental runs conducted on-board ISS in the frame of the experiment IVIDIL for low and strong vibrational forcing. The experimental observations revealed that a significant mean flow is set within 2 minutes after imposing vibrations and later in time it varies weakly and slowly due to the Soret effect. A mathematical model has been developed to compute the thermal and concentration fields in the experiment IVIDIL and verify the accuracy of picture processing based on the classical approach used in non-convective systems with the Soret effect. The effect of temperature and concentrations perturbations by joint action of vibrational convection and Soret effect on long time scale are carefully examined. The model demonstrates that image processing used for non-convective systems is suitable for the systems with vibration-affected thermodiffusion experiment.
WOS
Держатели документа:
[Gaponenko, Y.
Mialdun, A.
Shevtsova, V.] Univ Libre Bruxelles, MRC, EP CP 165 62, B-1050 Brussels, Belgium
[Gaponenko, Y.] Inst Computat Modelling SB RAS, Krasnoyarsk 660036, Russia
ИВМ СО РАН
Доп.точки доступа:
Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Mialdun, A.; Shevtsova, V.; PRODEX programme of the Belgian Federal Science Policy Office; ESA
Аннотация: One of the targets of the experiment IVIDIL (Influence Vibrations on Diffusion in Liquids) conducted on-board ISS was to study the response of binary mixtures to vibrational forcing when the density gradient results from thermal and compositional variations. Compositional variations were created by the Soret effect and can strengthen or weaken the overall density gradient and, consequently, the response to vibrational forcing. We present the results of two experimental runs conducted on-board ISS in the frame of the experiment IVIDIL for low and strong vibrational forcing. The experimental observations revealed that a significant mean flow is set within 2 minutes after imposing vibrations and later in time it varies weakly and slowly due to the Soret effect. A mathematical model has been developed to compute the thermal and concentration fields in the experiment IVIDIL and verify the accuracy of picture processing based on the classical approach used in non-convective systems with the Soret effect. The effect of temperature and concentrations perturbations by joint action of vibrational convection and Soret effect on long time scale are carefully examined. The model demonstrates that image processing used for non-convective systems is suitable for the systems with vibration-affected thermodiffusion experiment.
WOS
Держатели документа:
[Gaponenko, Y.
Mialdun, A.
Shevtsova, V.] Univ Libre Bruxelles, MRC, EP CP 165 62, B-1050 Brussels, Belgium
[Gaponenko, Y.] Inst Computat Modelling SB RAS, Krasnoyarsk 660036, Russia
ИВМ СО РАН
Доп.точки доступа:
Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Mialdun, A.; Shevtsova, V.; PRODEX programme of the Belgian Federal Science Policy Office; ESA
Mixing of liquids by vibrations - Preparation of the vipil experiment on the iss
[статья] : доклад, тезисы доклада / V. Shevtsova, Y. Gaponenko, A. Mialdun // Proceedings of the International Astronautical Congress, IAC. - 2012. - P. 791-796
РИНЦ,
Источник статьи
Доп.точки доступа:
Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Mialdun, A.; 63rd International Astronautical Congress 2012, IAC 2012 (2012 ; 01.10 - 05.10 ; Naples)
РИНЦ,
Источник статьи
Доп.точки доступа:
Gaponenko, Y.; Гапоненко, Юрий Анатольевич; Mialdun, A.; 63rd International Astronautical Congress 2012, IAC 2012 (2012 ; 01.10 - 05.10 ; Naples)
Interfacial instability in miscible liquids induced by vibrations
[Text] : abstract / Y. Gaponenko, V. Shevtsova // Abstracts of IMA8 - 8th Conference of the International Marangoni Association. - 2016. - P30
Доп.точки доступа:
Shevtsova, V.; Гапоненко, Юрий Анатольевич
Доп.точки доступа:
Shevtsova, V.; Гапоненко, Юрий Анатольевич
669.14.018.28
У 74
У 74
Усиление эффекта наномодифицирования алюминиевых сплавов ультразвуком
[Текст] : статья / Г. Г. Крушенко, С. Н. Решетникова, В. В. Голованова // Решетневские чтения. - 2017. - № 21-1. - С. 622-623
. - ISSN 1990-7702
Перевод заглавия: Strengthening effect of nano-modification of aluminum alloys by ultrasound
Кл.слова (ненормированные):
алюминиевые сплавы -- механические свойства -- модифицирование -- нанопорошки -- ультразвук -- aluminum alloys -- mechanical properties -- modification -- nanopowders -- ultrasound
Аннотация: С целью повышения механических свойств литейных алюминиевых сплавов, широко применяющихся в аэрокосмической отрасли для изготовления литых деталей, была разработана и успешно опробована технология модифицирования расплава нанонопорошками химических соединений при одновременном воздействии ультразвуковых колебаний.
The article describes a technology to modify the melt by nanoporosity of chemical compounds with simultaneous influence of ultrasonic vibrations. The technology is necessary to improve the mechanical properties of cast aluminum alloys widely used in the aerospace industry to manufacture castings.
РИНЦ
Держатели документа:
Красноярский научный центр СО РАН Институт вычислительного моделирования СО РАН
Сибирский государственный университет науки и технологий имени академика М. Ф. Решетнева
ФГУП «КБ «Арсенал» имени М. В. Фрунзе»
Доп.точки доступа:
Крушенко, Г.Г.; Krushenko G.G.; Решетникова, С.Н.; Reshetnikova S.N.; Голованова, В.В.; Golovanova V.V.
Перевод заглавия: Strengthening effect of nano-modification of aluminum alloys by ultrasound
| УДК |
Кл.слова (ненормированные):
алюминиевые сплавы -- механические свойства -- модифицирование -- нанопорошки -- ультразвук -- aluminum alloys -- mechanical properties -- modification -- nanopowders -- ultrasound
Аннотация: С целью повышения механических свойств литейных алюминиевых сплавов, широко применяющихся в аэрокосмической отрасли для изготовления литых деталей, была разработана и успешно опробована технология модифицирования расплава нанонопорошками химических соединений при одновременном воздействии ультразвуковых колебаний.
The article describes a technology to modify the melt by nanoporosity of chemical compounds with simultaneous influence of ultrasonic vibrations. The technology is necessary to improve the mechanical properties of cast aluminum alloys widely used in the aerospace industry to manufacture castings.
РИНЦ
Держатели документа:
Красноярский научный центр СО РАН Институт вычислительного моделирования СО РАН
Сибирский государственный университет науки и технологий имени академика М. Ф. Решетнева
ФГУП «КБ «Арсенал» имени М. В. Фрунзе»
Доп.точки доступа:
Крушенко, Г.Г.; Krushenko G.G.; Решетникова, С.Н.; Reshetnikova S.N.; Голованова, В.В.; Golovanova V.V.
Convection in a Two-Layer Liquid System in a Finite Cylinder
/ E. P. Magdenko // J. Appl. Mech. Tech. Phys. - 2019. - Vol. 60, Is. 5. - P842-849, DOI 10.1134/S0021894419050079
. - ISSN 0021-8944
Кл.слова (ненормированные):
convection -- interface -- Marangoni number -- tau method -- Capillary flow -- Contact angle -- Cylinders (shapes) -- Galerkin methods -- Heat conduction -- Heat convection -- Interfaces (materials) -- Liquids -- Velocity -- Conducting liquid -- Critical Marangoni numbers -- Critical temperatures -- Cylindrical containers -- Interface deformation -- Marangoni numbers -- Modified galerkin method -- Tau method -- Cylinders (containers)
Аннотация: This paper describes a cylindrical container of finite dimensions, filled with two quiescent immiscible heat-conducting liquids with a common flat interface. The side walls and bases of the vessel are solid, there are no external forces, and the contact angle of the interface with the side wall of the container is ?/2. The interface has a surface tension whose strength linearly depends on temperature. When one of the container bases is heated to a critical temperature, there is movement inside the vessel. When modeling takes into account the energy spent on the interface deformation. The emerging spectral problem is solved by the modified Galerkin method. For various liquids, in the case of monotonous vibrations, the dependence of a critical Marangoni number on a container size and a temperature ratio, specified on the cylinder bases, is obtained, and a perturbed motion velocity field is constructed. © 2019, Pleiades Publishing, Ltd.
Scopus,
Смотреть статью
Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
School of Mathematics and Computer Science, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Доп.точки доступа:
Magdenko, E. P.
Кл.слова (ненормированные):
convection -- interface -- Marangoni number -- tau method -- Capillary flow -- Contact angle -- Cylinders (shapes) -- Galerkin methods -- Heat conduction -- Heat convection -- Interfaces (materials) -- Liquids -- Velocity -- Conducting liquid -- Critical Marangoni numbers -- Critical temperatures -- Cylindrical containers -- Interface deformation -- Marangoni numbers -- Modified galerkin method -- Tau method -- Cylinders (containers)
Аннотация: This paper describes a cylindrical container of finite dimensions, filled with two quiescent immiscible heat-conducting liquids with a common flat interface. The side walls and bases of the vessel are solid, there are no external forces, and the contact angle of the interface with the side wall of the container is ?/2. The interface has a surface tension whose strength linearly depends on temperature. When one of the container bases is heated to a critical temperature, there is movement inside the vessel. When modeling takes into account the energy spent on the interface deformation. The emerging spectral problem is solved by the modified Galerkin method. For various liquids, in the case of monotonous vibrations, the dependence of a critical Marangoni number on a container size and a temperature ratio, specified on the cylinder bases, is obtained, and a perturbed motion velocity field is constructed. © 2019, Pleiades Publishing, Ltd.
Scopus,
Смотреть статью
Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
School of Mathematics and Computer Science, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Доп.точки доступа:
Magdenko, E. P.