Труды сотрудников ИВМ СО РАН

/ V. M. Sadovskii, O. V. Sadovskaya ; ed. by T.E.Simos [et al.] // NUMERICAL ANALYSIS AND APPLIED MATHEMATICS (ICNAAM 2012), VOLS A AND B. Ser. AIP Conference Proceedings : AMER INST PHYSICS, 2012. - Vol. 1479: International Conference of Numerical Analysis and Applied Mathematics (ICNAAM) (SEP 19-25, 2012, Kos, GREECE). - pp. 1611-1614, DOI 10.1063/1.4756474. - Cited References: 4 . - ISBN 0094-243X. - ISBN 978-0-7354-1091-6РУБ Mathematics, Applied + Physics, Applied

Аннотация: Parallel program systems for numerical solution of 2D and 3D problems of the dynamics of deformable media with constitutive relationships of rather general form on the basis of universal mathematical model describing small strains of elastic, elastic-plastic and granular materials are worked out. Some computations of dynamic problems with and without taking into account the moment properties of a material were performed on supercomputers with cluster architecture.

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Доп.точки доступа:
Sadovskii, V.M.; Садовский, Владимир Михайлович; Sadovskaya, O.V.; Садовская, Оксана Викторовна; Simos, T.E. \ed.\; Psihoyios, G. \ed.\; Tsitouras, C. \ed.\

/ M. Varygina // Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - 2013. - Vol. 8236 LNCS: 5th International Conference on Numerical Analysis and Applications, NAA 2012 (15 June 2013 through 20 June 2013, Lozenetz. - P517-523, DOI 10.1007/978-3-642-41515-9_59 . -
Аннотация: Parallel computational algorithms for the modeling of dynamic interaction of elastic blocks through thin viscoelastic interlayers in structurally inhomogeneous media such as rock are worked out. Numerical algorithms are based on monotonous grid- characteristic schemes with the balanced number of time steps in layers and interlayers. The numerical results to demonstrate qualitative characteristics of wave propagation in materials with microstructure are shown. В© 2013 Springer-Verlag.

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Доп.точки доступа:
Варыгина, Мария Петровна

/ M. Varygina // Proceedings of XLI International Summer School–Conference APM 2013. - 2013. - P107-113
Аннотация: Parallel computational algorithms for the numerical modeling of dynamic interactions of elastic blocks through thin elastic and viscoelastic interlayers in structurally inhomogeneous medium such as rock are developed. Monotonous grid-characteristic ENO-scheme with the balanced number of time steps in blocks and interlayers is used for the numerical solution. The algorithms are implemented in 1d and 2d cases with the CUDA technology (Compute Unified Device Architecture) for supercomputers with graphics processing units. The results of numerical analysis demonstrate peculiar quality of planar wave propagation in materials with layered microstructure.

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Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44

Доп.точки доступа:
Варыгина, Мария Петровна

[Текст] : тезисы / M. P. Varygina, O. V. Sadovskaya, V. M. Sadovskii // Аннотации докл. междунар. конф. «Современные проблемы прикладной математики и механики: теория, эксперимент и практика». - 2011. - С. 28


Доп.точки доступа:
Sadovskaya, O.V.; Садовская, Оксана Викторовна; Sadovskii, V.M.; Садовский, Владимир Михайлович; Варыгина, Мария Петровна; "Современные проблемы прикладной математики и механики: теория, эксперимент и практика", Международная конференция, посвященная 90-летию со дня рождения академика Н.Н.Яненко(30 мая - 4 июня 2011 г. ; Новосибирск)

[Text] / O. V. Sadovskaya, V. M. Sadovskii // AIP Conference Proceedings. - 2015. - Vol. 1648: International Conference on Numerical Analysis and Applied Mathematics (SEP 22-28, 2014, Rhodes, GREECE). - Ст. UNSP 630006, DOI 10.1063/1.4912864. - Cited References:5 . - ISSN 0094-243XРУБ Mathematics, Applied + Physics, Applied

Аннотация: Wave processes in blocky media with a large number of elastic blocks, interacting through compliant interlayers, are described by the equations of a piecewise-homogeneous isotropic elastic medium and by the equations of an orthotropic Cosserat continuum. Parallel program systems for numerical implementation of 2D dynamic problems on wave propagation in blocky media are worked out. Computations demonstrating the anisotropy of a blocky medium even for a sufficiently small thickness of interlayers were performed on supercomputers with cluster architecture.

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Держатели документа:
SB RAS, Inst Computat Modeling, Krasnoyarsk 660036, Russia

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

[Text] / O. V. Sadovskaya, V. M. Sadovskii ; ed. M. D. Todorov // APPLICATION OF MATHEMATICS IN TECHNICAL AND NATURAL SCIENCES : AMER INST PHYSICS, 2015. - Vol. 1684: 7th International Conference on Application of Mathematics in Technical (JUN 28-JUL 03, 2015, Albena, BULGARIA). - Ст. UNSP 070005. - (AIP Conference Proceedings), DOI 10.1063/1.4934306. - Cited References:8 . - РУБ Mathematics, Applied + Physics, Applied

Аннотация: The parallel computational algorithm for analysis of the processes of elastic-plastic deformation of a porous medium under the action of external dynamic loads is developed. This algorithm is based on the mathematical model taking into account threshold nature of change in the strength of a material under the collapse of pores. The algorithm is implemented in Fortran by means of functions of the MPI library. The parallel program system has been tested on clusters in computations of the propagation of plane longitudinal shock waves of the compression and in computations of the expansion of a cylindrical cavity in an infinite porous medium. The comparison of numerical results and exact solutions has shown their good qualitative and quantitative correspondence. Using the obtained algorithm, the process of propagation of elastic-plastic waves of the compression in a homogenous porous medium, accompanied by the deformation of a skeleton and the collapse of pores, is analyzed.

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SB RAS, Inst Computat Modeling, Akademgorodok 50-44, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Sadovskaya, O. V.; Sadovskii, V. M.; Todorov, M.D. \ed.\

/ L. Kamenshchikov, I. Krasnov // CEUR Workshop Proceedings : CEUR-WS, 2017. - Vol. 1839: 2016 International Conference Mathematical and Information Technologies, MIT 2016 (28 August 2016 through 5 September 2016, ) Conference code: 127940. - P324-333 . -
Аннотация: Simulations of the resonant ions stochastic dynamics in the polychromatic optical field are presented. We prove the possibility of long-Term four-And nine-particle ionic Coulomb planar clusters (crystals) by all-optical method. An estimate of lifetime of a single particle in an optical lattice is also carried out. Our analysis is based on the numerical solution of the stochastic differential equations with multiplicative noise using MVS-100K and MVS-10P supercomputers.

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Держатели документа:
Institute of Computational Modeling of SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kamenshchikov, L.; Krasnov, I.

[Текст] : научное издание / М. П. Варыгина, И. В. Смолехо // Решетневские чтения. - 2016. - Т. 2, № 20. - С. 120-122 . - ISSN 1990-7702
   Перевод заглавия: NUMERICAL MODELING OF MICROPOLAR THIN PLATES

УДК

539.37

Аннотация: Для исследования динамических процессов в микрополярных тонких пластинах, широко использующихся в аэрокосмической промышленности, разработан эффективный параллельный алгоритм для суперкомпьютеров с графическими ускорителями. Представлены результаты численного решения задачи Лэмба о действии мгновенной сосредоточенной нагрузки.
To research dynamic processes in micropolar thin plates widely used in aerospace industry effective parallel algorithm for supercomputers with graphical processors is developed. Numerical results of Lamb problem on instant concentrated load are presented.

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Держатели документа:
Институт вычислительного моделирования СО РАН

Доп.точки доступа:
Варыгина, М.П.; Varygina M.P.; Смолехо, И.В.; Smolekho I.V.

/ M. Varygina // AIP Conference Proceedings : American Institute of Physics Inc., 2017. - Vol. 1895: 9th International Conference for Promoting the Application of Mathematics in Technical and Natural Sciences, AMiTaNS 2017 (21 June 2017 through 26 June 2017, ) Conference code: 131031, DOI 10.1063/1.5007399 . -
Аннотация: The mathematical model of micropolar cylindrical shells is considered within the framework of the approximation approach. The constitutive equations of the theory are written in symmetric hyperbolic form. For the solution of dynamic problems on wave propagation in micropolar shells, parallel numerical algorithm based on the space-variable two-cyclic splitting method in combination with the monotone ENO-scheme is proposed. The parallelization of computations is performed with the CUDA technology for supercomputers with GPUs. The results of numerical solution of the problems on the action of distributed impulse loads and concentrated instant loads are shown. © 2017 Author(s).

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Держатели документа:
Institute of Computational Modeling SB RAS, Akademgorodok 50/44, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Varygina, M.

[Текст] : статья / М. П. Варыгина // Решетневские чтения. - 2017. - № 21-2. - С. 8-9 . - ISSN 1990-7702
   Перевод заглавия: Numerical modelling of micropolar cylindrical shells

УДК

539.37

Аннотация: Для исследования динамических процессов в микрополярных оболочках, широко использующихся в аэрокосмической промышленности, разработан эффективный параллельный алгоритм для суперкомпьютеров с графическими ускорителями. Представлены результаты численного решения задачи Лэмба о действии мгновенной сосредоточенной нагрузки.
In order to research dynamic processes in micropolar cylindrical shells widely used in aerospace industry, an effective parallel algorithm for supercomputers with graphical processor units is developed. Numerical results of Lamb’s problem on instant concentrated load are presented.

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Держатели документа:
Институт вычислительного моделирования СО РАН

Доп.точки доступа:
Варыгина, М.П.; Varygina M.P.

[Text] : доклад, тезисы доклада / M. Varygina // Ninth International Conference on Application of Mathematics in Technical and Natural Sciences : book of Abstracts. - Albena : Euro-American consortium for Promoting the Application of Mathematics in Technical and Natural Sciences, 2017. - P79

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Источник статьи

Держатели документа:
Krasnoyarsk Science Centre of the Siberian Branch of Russian Academy of Science

Доп.точки доступа:
Varygina, M.; 9TH INTERNATIONAL CONFERENCE FOR PROMOTING THE APPLICATION OF MATHEMATICS IN TECHNICAL AND NATURAL SCIENCES - AMITANS'17(2017 ; 21.06 - 26.06 ; Albena, Bulgaria)
Нет сведений об экземплярах (Источник в БД не найден)

/ V. M. Sadovskii, O. V. Sadovskaya // 9th Australasian Congress on Applied Mechanics, ACAM 2017 : National Committee on Applied Mechanics, 2017. - Vol. 2017-November: 9th Australasian Congress on Applied Mechanics, ACAM 2017 (27 November 2017 through 29 November 2017, ) Conference code: 135086 . -
Аннотация: Traditional rheological method is supplemented by a new element called rigid contact, which serves to take into account different resistance of materials to tension and compression. Based on this method, mathematical model describing deformation of a porous medium is constructed, which takes into account change in the resistance to external mechanical impact at a moment of collapse of pores. Parallel computational algorithm is developed for the analysis of dynamics of porous materials, accompanied by plastic deformation of skeleton and collapse of pores. This algorithm is tested on supercomputers in the problems about propagation of plane longitudinal compression shock waves and the expansion of cylindrical cavity in an infinite porous medium. The solutions of these problems are obtained in closed form in the framework of the suggested mathematical model. It is shown that, depending on the porosity of the medium and the value of the yield point, the instantaneous loading of a half-space with constant pressure leads to the formation of one or two shock waves – an elastic longitudinal wave, a plastic wave or waves of elastic or plastic compaction. Critical pressures of limit states and radii of interfaces between characteristic zones of plasticity and compaction are calculated numerically in the problem of radial expansion of cavity with sufficiently high precision. © 2017 National Committee on Applied Mechanics. All Rights Reserved.

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Держатели документа:
Institute of Computational Modelling SB RAS, Akademgorodok 50/44, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Sadovskii, V. M.; Sadovskaya, O. V.

/ M. Varygina // Continuum Mech. Thermodyn. - 2018, DOI 10.1007/s00161-018-0725-8 . - Article in press. - ISSN 0935-1175
Аннотация: Mathematical models of micropolar plates and shells are considered within the framework of the approximation approach. The governing equations of the theories are written in a thermodynamically consistent form of the conservation laws. This ensures hyperbolicity and correctness of the initial boundary value problems. For numerical solution, we propose parallel algorithms for supercomputers with graphics processing units. The algorithms are based on the splitting method with respect to spatial variables. We present the results of numerical computations of wave propagation in micropolar rectangular plates and cylindrical panels for media with different types of microstructure particles. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.

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Держатели документа:
Institute of Computational Modeling, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/44, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Varygina, M.

/ M. P. Varygina, E. P. Chentsov // AIP Conference Proceedings : American Institute of Physics Inc., 2018. - Vol. 2025: 10th International Conference for Promoting the Application of Mathematics in Technical and Natural Sciences, AMiTaNS 2018 (20 June 2018 through 25 June 2018, ) Conference code: 141497, DOI 10.1063/1.5064919 . -
Аннотация: The processes of seismic waves propagation generated by the non-explosive electromagnetic pulse source "Yenisei" are under investigation. Rheological properties of the layered medium including fractured interlayers are taken into account. For numerical implementation, a computational algorithm based on the space-variable two-cyclic splitting method in combination with monotone finite-difference schemes is developed. Parallel software for the analysis of the fields of velocities and stresses in layered medium is designed. Parallelisation of computations is performed by the CUDA technology for supercomputers with graphical accelerators. The results of numerical computations of seismic waves propagation are shown. © 2018 Author(s).

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Держатели документа:
Institute of Computational Modeling SB RAS, Akademgorodok 50/44, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Varygina, M. P.; Chentsov, E. P.

[Текст] : статья / М. П. Варыгина // Решетневские чтения. - 2018. - Т. 1, № 22. - С. 560-561 . - ISSN 1990-7702
   Перевод заглавия: NUMERICAL MODELING OF SEISMIC WAVE PROPAGATION GENERATED BY THE ELECTROMAGNETIC PULSE SOURCE “YENISEI”

УДК

550.34.09

Аннотация: Для численного исследования процессов распространения сейсмических волн, вызванных электромагнитным импульсным источником «Енисей» разработан эффективный параллельный алгоритм для суперкомпьютеров с графическими ускорителями.
In order to research processes of seismic wave propagation generated by the electromagnetic pulse source “Yenisei”, effective parallel algorithm for supercomputers with graphical processor units is developed.

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Держатели документа:
Институт вычислительного моделирования СО РАН

Доп.точки доступа:
Варыгина, М.П.; Varygina M.P.

/ V. M. Sadovskii, O. V. Sadovskaya // Mater. Phys. Mech. - 2019. - Vol. 42, Is. 3. - P330-339, DOI 10.18720/MPM.4232019_8 . - ISSN 1605-2730
Аннотация: The high-speed process of tectonic faults formation in zones of seismic activity of the Earth's crust is analyzed in a plane strain state based on the model of elastic blocks interacting through a domino-structure under conditions of strong hydrostatic compression. Numerical simulation of the dynamics of emerging fan-shaped waves is performed by means of the developed computational algorithm and computer program for multiprocessor supercomputers of cluster architecture. © 2019, Peter the Great St. Petersburg Polytechnic University © 2019, Institute of Problems of Mechanical Engineering RAS

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Держатели документа:
Institute of Computational Modeling SB RAS, Akademgorodok 50/44, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Sadovskii, V. M.; Sadovskaya, O. V.

/ V. M. Sadovskii, O. V. Sadovskaya, E. A. Efimov // Mater. Phys. Mech. - 2019. - Vol. 42, Is. 5. - P544-557, DOI 10.18720/MPM.4252019_8 . - ISSN 1605-2730
Аннотация: The northern territories of Eastern Siberia are characterized by a permafrost-taiga structure of the surface layer of soil, which reduces the efficiency of geological exploration using seismic sources of explosive and vibratory types. Therefore, Geotech Holding Company developed a special eco-friendly electromagnetic pulse source "Yenisei", which seismic waves are the subject of analysis using high-performance computing in this paper. Computational technology, worked out previously for solving the problems of the dynamics of viscoelastic, elastic-plastic, granular and porous media, is applied to the analysis of wave motion of a soil near a point of perturbations. It is shown that the main frequency of generated strain waves substantially depends on the elastic characteristics of a soil in the near-surface zone. A comparison of the results of computations obtained in the framework of the model of static loading with instant unloading and the model taking into account the monotone loading stage with subsequent pressure relief showed the validity of the hypothesis about the presence of added mass of a soil under the loading platform. This mass accumulates impact energy and emits seismic waves due to oscillatory motion. © 2019, Peter the Great St. Petersburg Polytechnic University.

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Держатели документа:
Institute of Computational Modeling SB RAS, Akademgorodok 50/44, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodny pr. 79, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Sadovskii, V. M.; Sadovskaya, O. V.; Efimov, E. A.