Труды сотрудников ИВМ СО РАН

[Text] : статья / Y. Gaponenko, A. Mialdun, V. Shevtsova // International Journal of Multiphase Flow. - 2012. - Vol. 39. - p. 205-215, DOI 10.1007/s12217-008-9075-7 . - ISSN 0938-0108
Аннотация: Experiments and numerical simulations were carried out for shear-driven two-phase flows in a confined volume of liquid under conditions of normal gravity. The geometry corresponds to a cylindrical liquid bridge surrounded by a concentric annular gas channel with external solid walls. The internal part consists of solid supports at the bottom and top, while the central part is a liquid zone filled with a viscous liquid and kept in its position by surface tension. Gas enters into the annular duct, flows between solid walls and upon reaching the liquid zone entrains initially quiescent liquid. The flow dynamics is governed by the Navier–Stokes equations in both fluids, which are numerically solved in the exact experimental geometry taking into account interface deformation by gravity. In the experiments 5 cSt silicone oil and air were used as test fluids and the flow was monitored by means of particle tracking velocimetry. The experiments were performed for unit aspect ratio (the ratio of liquid zone length to its radius), while the simulations of shear-driven flow were carried out for a wide range of parameters. A particular attention is focused on the effect of free surface shape and fluids viscosity contrast on the interfacial flow dynamics. The current study suggests a linear dependence between velocities of gas and liquid when the viscosity of the liquid is larger by two orders of magnitude than that of gas. Another relation is proposed when the fluids viscosity ratio, μl/μg, is less than 50.

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Доп.точки доступа:
Mialdun, A.; Shevtsova, V.; Гапоненко, Юрий Анатольевич

[Text] : статья / Y. Gaponenko, A. Mialdun, V. Shevtsova // The European Physical Journal Special Topics. - 2011. - Vol. 192, Iss. 1. - p. 63-70, DOI 10.1140/epjst/e2011-01360-0 . - ISSN 1951-6355
Аннотация: We report the results of numerical and experimental studies of two-phase flows in an annulus. The geometry corresponds to a cylindrical liquid column co-axially placed into an outer cylinder with solid walls. Gas enters into the annular duct and entrains the initially quiescent liquid. The internal column consists of solid rods at the bottom and top, while the central part is a liquid bridge from a viscous liquid and kept in its position by surface tension. Silicone oil 5cSt was used as a test liquid and air and nitrogen as gases. An original numerical approach was developed to study the problem in complex geometry. The flow structure in the liquid is analyzed for a wide range of gas flow rates.

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Доп.точки доступа:
Mialdun, A.; Shevtsova, V.; Гапоненко, Юрий Анатольевич

[Text] : статья / Y. Gaponenko, S. Glockner, A. Mialdun, V. Shevtsova // Acta Astronautica. - 2011. - Vol. 69, Iss. 3-4. - p. 119-126DOI 10.1016/j.actaastro.2011.03.012 . -
Аннотация: We report on numerical and experimental study of two-phase flows in a tall annulus. The geometry corresponds to a cylindrical liquid column co-axially placed into an outer cylinder with solid walls. The internal column consists of solid supports at the bottom and top, while the central part is a liquid zone filled with viscous liquid and kept in its position by surface tension. Gas enters into the annular duct and entrains initially quiescent liquid. The liquid bridge interface is deformed by gravity and by a co-axial gas flow which is co- and counter directed with respect to gravity. A new experimental set-up including an optical system for precise measurements of the interface displacement has been designed and developed. In the experiments silicone oil 5cSt was used as a test liquid and air as gas. On numerical side the dynamical response of an isothermal liquid bridge to a coaxial gas flow is examined by simulations of the Navier–Stokes equations. The attention is focused on the following points: time-dependent formation of the equilibrium shape of a liquid bridge in gravity conditions and its deformation by a gas flow, simulation of a flow pattern in a liquid/gas system with deformed free surface. The comparison of the numerical and experimental results for the interface deformation exhibits a satisfactory agreement.

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Доп.точки доступа:
Glockner, S.; Mialdun, A.; Shevtsova, V.; Гапоненко, Юрий Анатольевич

[Text] / A. Lukyanov [et al.] // 14th European Conference on the Mathematics of Oil Recovery 2014, ECMOR 2014. - 2014. - Ст. P27
Аннотация: Thermomechanical processes observing in deformable solids under intensive dynamic or quasi-static loadings consist of coupled mechanical, thermal and fracturing stages. The fracturing processes involve formation, motion and interaction of defects in crystals, phase transitions, breaking of bonds between atoms, accumulation of micro-structural damages (pores, cracks), etc. Irreversible deformations, zones of adiabatic shear micro-fractures are caused by these processes. A dynamic fracturing is a complicated multistage process, which includes appearance, evolution and confluence of micro-defects and formation of embryonic micro-cracks, pores that can grow and lead to the breaking-up of bodies with formation of free surfaces. This results in a need to use more advanced mathematical and numerical techniques. This talk presents modeling of irreversible deformation near the tip of a crack in a porous domain containing oil and gas during the hydraulic fracturing process. The governing equations for a porous domain containing oil and gas are based on constructing mathematical model of thermo-visco-elastoplastic media with micro-defects (micro-pores) filled with another phase (e.g., oil or/and gas). The micropores can change their size during the process of dynamical irreversible deformation. The existing pores can expand or collapse. The model was created by using the fundamental thermodynamic principles and, therefore, it is a thermodynamically consistent model. All the processes (i.e., irreversible deformation, fracturing, micro-damaging, heat transfer) within a porous domain are strongly coupled. Therefore, explicit normalized-corrected meshless method is used to solve the resulting governing PDEs. The flexibility of the proposed technique allows running efficiently using a great number of micro- and macrofractures. The results are presented, discussed and future studies are outlined.

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Доп.точки доступа:
Lukyanov, A.; Chugunov, N.; Sadovskii, V.M.; Садовский, Владимир Михайлович; Sadovskaya, O.V.; Садовская, Оксана Викторовна

/ E. N. Zavorueva, V. V. Zavoruev, R. T. Emelyanov // Proceedings of SPIE - The International Society for Optical Engineering : SPIE, 2016. - Vol. 10035: 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics (30 June 2016 through 3 July 2016, ) Conference code: 125266, DOI 10.1117/12.2249737 . -
Аннотация: Sunflower plants were grown in the laboratory under continuous light on the ground, the sand and the liquid medium. Fluorescence parameters were measured using PAM fluorimeter (Walz, Germany) and optical spectrophotometric sensor CCM-200 plus, Opti-Sciences, USA). The change of parameters of Fo, Fm, Fv/Fm, ETR and CCI in leaves after addition of oil at a concentration of 6 g/kg is investigated. It is shown that the parameters CCI and ETR (electron transport rates) are most sensitive to oil pollution. The value of the CCI in sunflower leaves increased (compared to control) after the addition of oil in the soil and decreased after the addition of oil in sand and liquid culture medium. © 2016 SPIE.

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Держатели документа:
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation
Institute of Computational Modeling, SB, RAS, Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Zavorueva, E. N.; Zavoruev, V. V.; Emelyanov, R. T.

/ D. L. Chubarov, V. A. Kochnev, D. A. Terre // IOP Conf. Ser. Earth Envir. Sci. : IOP PUBLISHING LTD, 2016. - Vol. 43: 20th International Scientific Symposium of Students, Postgraduates and (APR 04-08, 2016, Inst Nat Resources, Tomsk, RUSSIA). - Ст. 012024. - (IOP Conference Series-Earth and Environmental Science), DOI 10.1088/1755-1315/43/1/012024. - Cited References:5 . - РУБ Energy & Fuels + Engineering, Petroleum + Engineering, Geological

Аннотация: The largest part of solid minerals (with the exception of those which are at the earth's surface) is being extracted world-wide by surface and underground mining techniques, with adits, mines and other mine workings being used. A considerable amount of mineral deposits (including oil reservoirs) is located either close to a fault-line or immediately within the zone of high seismic activity. To prevent economic and environmental damage under the effect of an earthquake, thorough seismic monitoring of the area must be performed, as well as the study of all possible mechanisms of an earthquake occurrence. In analysing the trigger effect of moon-and sun-induced tidal forces on seismic activity, six great earthquakes which occurred close to equatorial latitude over the last 15 years have been considered. Based on the positions of the Sun and Moon during the day relative to the point mass, the maps of horizontal, vertical components and vector of gravitational forces per unit mass have been plotted. The developed technique can be applicable to a set of methods to study integration and stress unloading mechanisms at the boundaries of block structures.

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Держатели документа:
Natl Res Tomsk Polytech Univ, 30 Lenin Ave, Tomsk, Russia.
Russian Acad Sci, Siberian Branch, Inst Computat Modeling, 50 Acad Gorodok, Krasnoyarsk, Russia.

Доп.точки доступа:
Chubarov, D. L.; Kochnev, V. A.; Terre, D. A.

[Текст] : статья / Даниил Леонидович Чубаров, Владимир Алексеевич Кочнев // Известия Томского политехнического университета. Инжиниринг георесурсов. - 2016. - Т. 327, № 2. - С. 59-64 . - ISSN 2500-1019

УДК	550.34.013.4

Аннотация: Большая часть твердых полезных ископаемых в мире (за исключением тех, что находятся на поверхности земли) добывается открытым и закрытым способом посредством штолен, шахт и других горных выработок. Немалая часть месторождений полезных ископаемых (в том числе и нефтяных) располагаются либо вблизи, либо непосредственно внутри зон повышенной сейсмологической активности (сюда можно отнести все месторождения Чили, Японии, Индонезии, некоторые месторождения США, России и других стран). Таким образом, если вблизи данных месторождений произойдет крупное землетрясение, то, вероятнее всего, это приведет, с одной стороны, к приостановке (или консервации) деятельности месторождения, с другой - к значительному числу жертв и экономическому ущербу. Чтобы избежать или хотя бы минимизировать данный ущерб, необходимо проводить полноценный сейсмологический мониторинг данных территорий, а также изучать все возможные причины возникновения землетрясений. Данная работа направлена на изучение природы землетрясений, что, несомненно, говорит об актуальности исследования. Цель данного исследования: установить совместное триггерное воздействие гравитационных сил Луны и Солнца на сейсмологическую активность зон Земли. Методы исследования. В данной работе за основу взята известная физико-математическая модель (приливная модель Дж. Дарвина), а таrже принято во внимание изменение относительного положения Луны и Солнца. Результаты. При изучении триггерного воздействия приливных сил на сейсмологическую активность рассмотрены 6 наиболее крупных землетрясений, произошедших вблизи экваториальной широты за последние 15 лет. Построены изображения горизонтальных, вертикальных компонент и модулей вектора гравитационных сил на единичную массу в зависимости от взаимного положения Луны и Солнца в течение суток относительно исследуемого объекта с единичной массой. Проанализировано воздействие приливных сил на точки эпицентров 6 крупнейших землетрясений, произошедших вблизи экваториальной широты. Разрабатываемая технология может быть полезна в комплексе методов при изучении механизмов интегрирования и разрядки напряжений на границах блоковых структур.
The majority of solid minerals in the world (excluding those, which are on the Earth’s surface) are mined by the open- and close-cut techniques using adits, mines and other minings. A large part of deposits of minerals (including the oil ones) occur either close or just inside the areas of higher seismological activity (all deposits in Chilly, Japan, Indonesia, some deposits in the USA, Russia and other countries can be referred to this type). Thus, if a major earthquake occurs near such deposit it will probably result in suspension (conservation) of the deposit activity, on the one hand, and on the other hand in significant amount of victims and economic damage. In order to avoid or at least to minimize the damage it is necessary to monitor the seismological situation in these territories and to study all possible causes of earthquake occurrence. The paper is devoted to the study of the earthquake nature. This is the relevance of the research. The aim of the study is to establish the combined effect of the gravitational forces of the Moon and Sun on the Earth’s seismological activity zones. Methods. Physical and mathematical model (G. Darwin tidal model) is taken as a basis, and the combined effect of the Moon and Sun and their relative positions are taken into account. Results. The authors have studied six largest earthquakes with epicenters located near the equator during the last 15 years and prepared a map of horizontal and vertical components and the magnitudes of gravitational force, depending on the relative position of the moon and the sun. The influence of tidal forces on epicenters of six greatest earthquakes, located near the equator, was analyzed. The developed technique can be useful for studying the mechanisms of stress at the boundaries of block structures.

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Держатели документа:
Институт вычислительного моделирования СО РАН
Национальный исследовательский Томский политехнический университет

Доп.точки доступа:
Кочнев, Владимир Алексеевич; Kochnev V.A.

/ D. L. Chubarov, V. A. Kochnev // Bull. Tomsk Polytech. Univ. Geo Assets Eng. - 2016. - Vol. 327, Is. 2. - С. 59-64 . - ISSN 2500-1019
Аннотация: The majority of solid minerals in the world (excluding those, which are on the Earth's surface) are mined by the openand close-cut techniques using adits, mines and other minings. A large part of deposits of minerals (including the oil ones) occur either close or just inside the areas of higher seismological activity (all deposits in Chilly, Japan, Indonesia, some deposits in the USA, Russia and other countries can be referred to this type). Thus, if a major earthquake occurs near such deposit it will probably result in suspension (conservation) of the deposit activity, on the one hand, and on the other hand in significant amount of victims and economic damage. In order to avoid or at least to minimize the damage it is necessary to monitor the seismological situation in these territories and to study all possible causes of earthquake occurrence. The paper is devoted to the study of the earthquake nature. This is the relevance of the research. The aim of the study is to establish the combined effect of the gravitational forces of the Moon and Sun on the Earth's seismological activity zones. Methods. Physical and mathematical model (G. Darwin tidal model) is taken as a basis, and the combined effect of the Moon and Sun and their relative positions are taken into account. Results. The authors have studied six largest earthquakes with epicenters located near the equator during the last 15 years and prepared a map of horizontal and vertical components and the magnitudes of gravitational force, depending on the relative position of the moon and the sun. The influence of tidal forces on epicenters of six greatest earthquakes, located near the equator, was analyzed. The developed technique can be useful for studying the mechanisms of stress at the boundaries of block structures.

Scopus

Держатели документа:
National Research Tomsk Polytechnic University, 30, Lenin Avenue, Tomsk, Russian Federation
Institute of Calculation Modeling SB RAS, 50/44, Akademgorodok Street, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Chubarov, D. L.; Kochnev, V. A.

[Текст] : научное издание / Н. А. Тестоедов [и др.] // Вестник Сибирского государственного аэрокосмического университета им. академика М.Ф. Решетнева. - 2017. - Т. 18, № 1. - С. 160-167 . - ISSN 1816-9724
   Перевод заглавия: The evolution of the project “Sea launch” of spacecraft

УДК

629.78

Аннотация: Для выведения космических аппаратов (КА) на геостационарную орбиту желательно производить запуск из зоны, наиболее близкой к экватору, что позволит при запуске ракеты-носителя (РН) максимально использовать скорость вращения Земли. Для решения этой проблемы в 1995 г. в Калифорнии была зарегистрирована компания Sea Launch. Для запусков КА при этом была использована двухступенчатая РН «Зенит». Пусковая установка и технологическое оборудование были смонтированы на доработанной самоходной нефтедобывающей платформе. C 1999 г. до консервации проекта «Морской старт» в 2014 г. с плавучей платформы в экваториальных водах Тихого океана было произведено 36 пусков КА. Однако в 2009 г. Sea Launch столкнулась с финансовыми трудностями, подала заявление о банкротстве и договорилась с РКК «Энергия» о выходе из процедуры банкротства. Появилась информация, что РКК «Энергия» продает космодром российской коммерческой авиакомпании S7 Airlines. Тем не менее, как технические, так и экономические проблемы останутся на прежнем уровне, в связи с чем прорабатывается возможность более экономичного запуска КА с использованием подводных лодок. И такой опыт уже имел место. Так, 7 июля 1998 г. впервые из подводного положения ракетным подводным крейсером Северного флота «Новомосковск» с акватории Баренцева моря с помощью ракеты-носителя «Штиль» были выведены на низкую околоземную орбиту два микроспутника. А 26 мая 2006 г. также из акватории Баренцева моря с АПЛ «Екатеринбург» с помощью РН «Штиль-1Н» был выведен на гелиосинхронную орбиту спутник «Компасс-2». Представленный материал показывает перспективность пуска КА из любой точки Мирового океана на различные орбиты с помощью подводных лодок, что является более надежным и экономичным, чем пуски с применением проекта, использующего тандем из пусковой платформы и сборочно-командного судна. Сопоставление габаритов пусковых шахт подводных лодок, по крайней мере тех, с которых уже производились пуски, и массово-габаритных характеристик КА различного назначения подтверждает такую возможность.
For launching a spacecraft to the geostationary orbit, it is desirable to start from the area closest to the equator that will allow the launch of vehicle to maximize the speed of rotation of the Earth. To resolve this problem in 1995 in California the Sea Launch Company was registered. For launches of satellites a two-stage rocket “Zenit” was used. Launcher and the technological equipment were mounted on a modified self-propelled oil platform. From 1999 to the conservation of the project “Sea launch” in 2014, with a floating platform in the Equatorial waters of the Pacific ocean 36 launches of spacecraft were made. However, in 2009 Sea Launch ran into financial difficulties and filed for bankruptcy, and the company agreed with the RSC “Energia” on the exit from bankruptcy. And it was reported that RSC Energia sold commercial spaceport to the Russian airline, S7 Airlines. However, both technical and economic problems will remain at the same level. Therefore the possibility of more cost-effective launch of the SPACECRAFT using submarines was studied. Such experience has already taken place. On July 7, 1998 for the first time from a submerged position with missile submarine cruiser of the Northern fleet project “Novomoskovsk” with the waters of the Barents sea with the help of the carrier rocket two micro-satellites were launched into low earth orbit. And on May 26, 2006, also from the waters of the Barents sea from the nuclear submarine “Yekaterinburg” using rocket “Shtil-1” the satellite “Compass-2” was launched into heliosynchronous the orbit. The material shows promising start of the spacecraft from any point of the World Ocean at different orbit using submarines, which is more reliable and efficient than launches from the application project that uses the combination of a launch platform and Assembly-command ship. A comparison of the dimensions of the silos of the submarines, at least, those which have already been carried out launches and mass-overall characteristics of the spacecraft for various purposes, confirms this possibility.

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Держатели документа:
АО «Информационные спутниковые системы» имени академика М. Ф. Решетнёва»
Институт вычислительного моделирования СО РАН
Сибирский государственный аэрокосмический университет имени академика М. Ф. Решетнева

Доп.точки доступа:
Тестоедов, Н.А.; Testoedov N.A.; Двирный, В.В.; Dvirnyi V.V.; Крушенко, Г.Г.; Krushenko G.G.; Двирный, Г.В.; Dvirnyi G.V.

/ V. K. Andreev // Bull. South Ural State Univ. Ser. Math. Model. Program. Comput. Softw. - 2018. - Vol. 11, Is. 4. - С. 31-40, DOI 10.14529/mmpl80402 . - ISSN 2071-0216
Аннотация: An inverse initial boundary value problem that arises as a result of mathematical modelling of specific thermocapillary 2D motion near an extreme point on solid wall is investigated. One of the velocity field components considered motion linearly depends on the longitudinal coordinate. This is a good agrement with the quadratic dependence of temperature field on the same coordinate. For stationary flow in the case of small Marangoni numbers the solution can be found by exact formulae. Nonstationary solution is found in quadratures in Laplace transformation space. The calculation results of zero and first solution approximations of this inverse stationary problem are given. If temperature on the solid wall is stabilized with time, then the nonstationary solution will converge to steady regime. The calculations are performed for different values of the Prandtl number and Bio number. Numerical results well support the theoretical conclusions on the example of modelling process arising the thermocapillary motion from a state of rest in the transformer oil layer. It is shown that choosing a specific thermal regime on a solid wall it is possible to control the fluid motion inside a layer. © 2018 South Ural State University. All rights reserved.

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Держатели документа:
Institute Computational Modelling SBRAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Andreev, V. K.

: статья / В. К. Андреев // Вестник Южно-Уральского государственного университета. Серия: Математическое моделирование и программирование. - 2018. - Т. 11, № 4. - С. 31-40, DOI 10.14529/mmp180402 . - ISSN 2071-0216
   Перевод заглавия: On the Solution Properties of Boundary Problem Simulating Thermocapillary Flow

УДК	517.956.27

Аннотация: Исследуется обратная начально-краевая задача, возникающая при математическом моделировании специальных термокапиллярных двумерных движений жидкости вблизи точки экстремума температуры на твердой стенке. Одна из компонент поля скоростей рассматриваемого движения линейно зависит от продольной координаты, что согласуется с квадратичной зависимостью поля температур от этой же координаты. При малых числах Марангони задача аппроксимируется линейной, решение которой находится в явном виде для стационарного течения. Приведены результаты вычисления нулевого и первого приближения решения обратной стационарной задачи. В нестационарном случае решение определяется в виде квадратур в пространстве изображений по Лапласу. Показано, что если температура на твердой стенке стабилизируется с ростом времени, то решение стремится к найденному стационарному режиму. Приведены численные результаты обращения преобразования Лапласа, подтверждающие теоретические выводы на примере моделирования процесса возникновения термокапиллярного движения из состояния покоя в слое трансформаторного масла. Показано, что, выбирая тот или иной тепловой режим на твердой стенке, можно управлять движением жидкости внутри слоя.
An inverse initial boundary value problem that arises as a result of mathematical modelling of specific thermocapillary 2D motion near an extreme point on solid wall is investigated. One of the velocity field components considered motion linearly depends on the longitudinal coordinate. This is a good agrement with the quadratic dependence of temperature field on the same coordinate. For stationary flow in the case of small Marangoni numbers the solution can be found by exact formulae. Nonstationary solution is found in quadratures in Laplace transformation space. The calculation results of zero and first solution approximations of this inverse stationary problem are given. If temperature on the solid wall is stabilized with time, then the nonstationary solution will converge to steady regime. The calculations are performed for different values of the Prandtl number and Bio number. Numerical results well support the theoretical conclusions on the example of modelling process arising the thermocapillary motion from a state of rest in the transformer oil layer. It is shown that choosing a specific thermal regime on a solid wall it is possible to control the fluid motion inside a layer.

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Держатели документа:
Институт вычислительного моделирования СО РАН - обособленное подразделение ФИЦ КНЦ СО РАН

Доп.точки доступа:
Андреев, Виктор Константинович; Andreev V.K.

/ M. Braibanti [et al.] // Eur. Phys. J. E. - 2019. - Vol. 42, Is. 7. - Ст. 86, DOI 10.1140/epje/i2019-11849-0. - Cited References:69. - The science teams acknowledge the support of ESA as well of CNES, ASI, DLR, PRODEX, ROSCOSMOS, NASA and CSU. The team from Bayreuth acknowledges support from the Deutsches Zentrum fur Luft-und Raumfahrt (DLR), grants 50WM1544, 50WM1850. The Brussels team acknowledges support by the PRODEX programme of the Belgian Federal Science Policy Office. The team from Mondragon acknowledges the support of FETRAFLU (2018-CIEN-000101-01) from Gipuzkoa Program for Science, ATNEMFLU (ESP2017-83544-C3-1-P) of the MINECO and the Research Group Program (IT1009-16) from the Basque Government. The team from Pau acknowledges the financial support from the Centre National d'Etudes Spatiales (CNES). . - ISSN 1292-8941. - ISSN 1292-895XРУБ Chemistry, Physical + Materials Science, Multidisciplinary + Physics,

Аннотация: .This paper describes the European Space Agency (ESA) experiments devoted to study thermodiffusion of fluid mixtures in microgravity environment, where sedimentation and convection do not affect the mass flow induced by the Soret effect. First, the experiments performed on binary mixtures in the IVIDIL and GRADFLEX experiments are described. Then, further experiments on ternary mixtures and complex fluids performed in DCMIX and planned to be performed in the context of the NEUF-DIX project are presented. Finally, multi-component mixtures studied in the SCCO project are detailed.

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Держатели документа:
European Space Agcy, Estec, Noordwijk, Netherlands.
Univ Paris Sud, Lab Chim Phys, CNRS, UMR 8000, Orsay, France.
Nanotemper Technol GmbH, Munich, Germany.
Univ Pau & Pays Adour, Lab Fluides Complexes & Leurs Reservoirs IPRA, UMR5150, E2S,CNRS,TOTAL, 1 Allee Parc Montaury, F-64600 Anglet, France.
Univ Pau & Pays Adour, Lab Fluides Complexes & Leurs Reservoirs IPRA, UMR5150, E2S,CNRS,TOTAL, F-64000 Pau, France.
MGEP Mondragon GoiEskola Politeknikoa, Mech & Ind Mfg Dept, Arrasate Mondragon, Spain.
Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
Univ Milan, Dipartimento Fis, I-20133 Milan, Italy.
Univ Milan, Dipartimento Biotecnol Med & Med Traslaz, I-20090 Segrate, Italy.
NYU, Courant Inst Math Sci, 251 Mercer St, New York, NY 10012 USA.
Univ Politecn Madrid, E USOC ETSIAE, Madrid, Spain.
Univ Libre Bruxelles, MRC, CP165-62,Ave FD Roosevelt 50, B-1050 Brussels, Belgium.
CNES, 2 Pl Maurice Quentin, F-75001 Paris, France.
Univ Rovira & Virgili, Dept Quim Fis & Inorgan, Tarragona, Spain.
Friedrich Alexander Univ Erlangen Nurnberg FAU, Erlangen Grad Sch Adv Opt Technol SAOT, Erlangen, Germany.
Duy Tan Univ, Inst Fundamental & Appl Sci, 10C Tran Nhat Duat St,Dist 1, Ho Chi Minh City 700000, Vietnam.
Univ Bayreuth, Phys Inst, D-95440 Bayreuth, Germany.
Inst Continuous Media Mech UB RAS, Perm 614013, Russia.
Univ Complutense, Dept Estruct Mat, Fac Fis, Plaza Ciencias 1, E-28040 Madrid, Spain.
Inst Computat Modelling SB RAS, Krasnoyarsk 660036, Russia.
Imperial Coll London, Dept Earth Sci & Engn, London, England.
Chinese Acad Sci, Key Lab Micrograv, Inst Mech, Beijing, Peoples R China.
CNPC, State Key Lab Enhanced Oil Recovery, Res Inst Petr Explorat & Dev, Beijing, Peoples R China.
CERN, CH-1211 Geneva 23, Switzerland.
LiS, NL-2333 CC Leiden, Netherlands.
SLAC Natl Accelerator Lab, SSRL Mat Sci Div, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA.

Доп.точки доступа:
Braibanti, M.; Artola, P. -A.; Baaske, P.; Bataller, H.; Bazile, J. -P.; Bou-Ali, M. M.; Cannell, D. S.; Carpineti, M.; Cerbino, R.; Croccolo, F.; Diaz, J.; Donev, A.; Errarte, A.; Ezquerro, J. M.; Frutos-Pastor, A.; Galand, Q.; Galliero, G.; Gaponenko, Y.; Garcia-Fernandez, L.; Gavalda, J.; Giavazzi, F.; Giglio, M.; Giraudet, C.; Hoang, H.; Kufner, E.; Kohler, W.; Lapeira, E.; Laveron-Simavilla, A.; Legros, J. -C.; Lizarraga, I.; Lyubimova, T.; Mazzoni, S.; Melville, N.; Mialdun, A.; Minster, O.; Montel, F.; Molster, F. J.; de Zarate, J.; Rodriguez, B.; Rousseau, X.; Ruiz, I. I.; Ryzhkov, I. I.; Schraml, V.; Shevtsova, C. J.; Takacs, C. J.; Triller, S.; Van Vaerenbergh, A.; Vailati, A.; Verga, R.; Vermorel, V.; Vesovic, V.; Yasnou, S.; Xu, D.; Zapf, K.; Zhang, K.; ESA; CNES; ASI; DLR; PRODEX; ROSCOSMOS; NASA; CSU; Deutsches Zentrum fur Luft-und Raumfahrt (DLR) [50WM1544, 50WM1850]; PRODEX programme of the Belgian Federal Science Policy Office; FETRAFLU from Gipuzkoa Program for Science [2018-CIEN-000101-01]; ATNEMFLU of the MINECO [ESP2017-83544-C3-1-P]; Research Group Program from the Basque Government [IT1009-16]; Centre National d'Etudes Spatiales (CNES)

/ V. B. Bekezhanova [et al.] // J. Sib. Fed. Univ. Math. Phys. - 2019. - Vol. 12, Is. 5. - P543-550, DOI 10.17516/1997-1397-2019-12-5-543-550 . - ISSN 1997-1397
Аннотация: New non-standard problem of thermocapillary convection is studied to analyze the flows arising in a two-layer system under action of an intense thermal exposure on the free boundary by a laser beam. Characteristics of the physical experiments are presented. Parameters of the experiments are the ratio of the liquid layer thicknesses, the types of working liquids, the absorption coefficients of media. Special attention is given to the study of the influence of the system geometry when changing the thickness for one of the liquid layers. Theoretical study of the thermocapillary convection includes development of the mathematical model tested on the basis of new physical experiment data and of the effective numerical algorithm to calculate basic characteristics. The occurrence of the decaying oscillations, which first experimentally discovered by the authors, and the evolution of the interfaces and layers are investigated. The results of numerical study of structure and nature of convective flows in the horizontal two-layer liquid – liquid systems of the type "silicone oil – glycerin", and comparison of the experimental and theoretical data allow one to validate the developed mathematical model, to analyze the peculiarities of heat and mass transfer in the two-layer system induced by the action of a local heat source at the free boundary. © Siberian Federal University. All rights reserved

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Держатели документа:
Institute of Computational Modeling SB RAS, Academgorodok, 50/44, Krasnoyarsk, 660036, Russian Federation
Altai State University, Lenina, 61, Barnaul, 656049, Russian Federation
Tyumen State University, Volodarskogo, 6, Tyumen, 625003, Russian Federation

Доп.точки доступа:
Bekezhanova, V. B.; Goncharova, O. N.; Ivanova, N. A.; Klyuev, D. S.

/ V. B. Bekezhanova, O. N. Goncharova, N. A. Ivanova, D. S. Klyuev // J. Sib. Fed. Univ.-Math. Phys. - 2019. - Vol. 12, Is. 5. - P543-550, DOI 10.17516/1997-1397-2019-12-5-543-550. - Cited References:7. - This work was supported by the Russian Foundation for Basic Research (project no. 17-08-00291). The authors are very thankful to Dr A. S. Ovcharova for helpful discussions and a code for nonstationary problems with interfaces. . - ISSN 1997-1397. - ISSN 2313-6022РУБ Mathematics

Аннотация: New non-standard problem of thermocapillary convection is studied to analyze the flows arising in a two-layer system under action of an intense thermal exposure on the free boundary by a laser beam. Characteristics of the physical experiments are presented. Parameters of the experiments are the ratio of the liquid layer thicknesses, the types of working liquids, the absorption coefficients of media. Special attention is given to the study of the influence of the system geometry when changing the thickness for one of the liquid layers. Theoretical study of the thermocapillary convection includes development of the mathematical model tested on the basis of new physical experiment data and of the effective numerical algorithm to calculate basic characteristics. The occurrence of the decaying oscillations, which first experimentally discovered by the authors, and the evolution of the interfaces and layers are investigated. The results of numerical study of structure and nature of convective flows in the horizontal two-layer liquid - liquid systems of the type "silicone oil-glycerin", and comparison of the experimental and theoretical data allow one to validate the developed mathematical model, to analyze the peculiarities of heat and mass transfer in the two-layer system induced by the action of a local heat source at the free boundary.

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Держатели документа:
Inst Computat Modeling SB RAS, Academgorodok 50-44, Krasnoyarsk 660036, Russia.
Altai State Univ, Lenina 61, Barnaul 656049, Russia.
Tyumen State Univ, Volodarskogo 6, Tyumen 625003, Russia.

Доп.точки доступа:
Bekezhanova, Victoria B.; Goncharova, Olga N.; Ivanova, Natalia A.; Klyuev, Denis S.; Kluev, Denis; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [17-08-00291]

/ U. S. Ivanova, O. V. Taseiko, D. A. Chernykh ; ed.: V. V. Lepov [et al.] // 1ST INTERNATIONAL CONFERENCE ON INTEGRITY AND LIFETIME IN EXTREME : ELSEVIER SCIENCE BV, 2019. - Vol. 20: 1st International Conference on Integrity and Lifetime in Extreme (OCT 14-17, 2019, Yakutsk, RUSSIA). - P136-142. - (Procedia Structural Integrity), DOI 10.1016/j.prostr.2019.12.129. - Cited References:11. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science, to the research project. 18-47-240006: "Methods and information technologies for risk assessment of the development of socio-natural-technogenic systems in an industrial region". . - РУБ Engineering, Mechanical + Mechanics

Аннотация: The presentation of an industrial region as a unified socio-natural-technogenic (S-N-T) system in which various risk groups are formed and implemented is proposed. Detailed attention is paid to the technosphere subsystem. The paper defines the basic risks of the technosphere, presents the probability of an emergency in the Russian Federation, allowing to calculate the risks for various municipalities. The results of systematization and graphical-probabilistic representation of sources and factors causing accidents and man-made disasters in the Krasnoyarsk territory are presented. The results of the emergency risk in the Krasnoyarsk territory for various reasons. The results of emergencies risks on the Krasnoyarsk territory were obtained. The highest value is 8.10(-3) the emergencies risk on land transport, the lowest value is obtained for the occurrence of emergencies on the main oil pipelines 4,3.10(-7). Determination of probabilities by the main sources of anthropogenic emergencies allows unifying the risk assessment methodology and improving the management efficiency of territorial S-N-T systems (Preventing the occurrence and development of emergency situations, reducing damage and losses in case of their occurrence, increasing the stability and safety of facilities in emergency situations). (C) 2019 The Authors. Published by Elsevier B.V. Peer-review under responsibility of the ILEE-2019 organizers

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Держатели документа:
RAS, Inst Computat Technol SB, Krasnoyarsk Branch Off, Mira Av 53, Krasnoyarsk 660049, Russia.
Siberian Fed Univ, Svobodny Av 79, Krasnoyarsk 660041, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsky Rabochy Av 31, Krasnoyarsk 660037, Russia.
RAS, SB, Inst Computat Modeling, Academgorodok Str 50, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Ivanova, Ulyana S.; Taseiko, Olga V.; Chernykh, Dania A.; Lepov, V.V. \ed.\; Rousakis, T... \ed.\; Samuel, B.M. \ed.\; Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science [18-47-240006]