[Текст]. - Электрон. дан. (180 Кб)
. - Режим доступа: http://icm.krasn.ru/refextra.php?id=2341. - Электрон. версия печ. публикации . - Режим доступа: http://library.krasn.ru/trudy/2000/2341lab23rus_30.pdf (Полный текст) : статья / Е.Н. Васильев, В.А. Деревянко, В.Е. Косенко. - Электрон. дан. (180 Кб) // Теория и эксперимент в современной физике. - Красноярск : Красноярский Госуниверситет, 2000. - С. 47-57
Аннотация: This paper offers a mathematical model to obtain a numerical calculation and optimization of the thermal regimes of satellite radio electronic apparatus in vacuum condition. This model consists of two levels. The first one is finding the temperature distribution of the non-tightness satellite surface. The second one is the simulation of the simulation of the single radio technical device temperature regime.
http://icm.krasn.ru/refextra.php?id=2341,
Полный текст
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ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Деревянко, Валерий Александрович; Derevyanko V.A.; Косенко, В.Е.; Vasilyev E.N.
Труды сотрудников ИВМ СО РАН
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Найдено документов в текущей БД: 517
Rate of steady-state reconnection in an incompressible plasma
[Text] : статья / N.V. Erkaev, V.S. Semenov, H.K. Alexeev, H.K. Biernat // Physics of Plasmas. - 2001. - Vol. 8, № 11. - p. 4800-4811DOI 10.1063/1.1410112
. -
Аннотация: The reconnection rate is obtained for the simplest case of two-dimensional (2D) symmetric reconnection in an incompressible plasma. In the short note [Erkaev et al., Phys. Rev. Lett. 84, 1455 (2000)], the reconnection rate is found by matching the outer Petschek solution and the inner diffusion region solution. Here the details of the numerical simulation of the diffusion region are presented and the asymptotic procedure which is used for deriving the reconnection rate is described. The reconnection rate is obtained as a decreasing function of the diffusion region length. For a sufficiently large diffusion region scale, the reconnection rate becomes close to that obtained in the Sweet-Parker solution with the inverse square root dependence on the magnetic Reynolds number Re m , determined for the global size of the current sheet. On the other hand, for a small diffusion region length scale, the reconnection rate turns out to be very similar to that obtained in the Petschek model with a logarithmic dependence on the magnetic Reynolds number Re m . This means that the Petschek regime seems to be possible only in the case of a strongly localized conductivity corresponding to a small scale of the diffusion region. c 2001 American Institute of Physics.
http://icm.krasn.ru/refextra.php?id=1805,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Semenov, V.S.; Семенов В.С.; Alexeev, H.K.; Алексеев Г.К.; Biernat, H.K.; Еркаев, Николай Васильевич
Аннотация: The reconnection rate is obtained for the simplest case of two-dimensional (2D) symmetric reconnection in an incompressible plasma. In the short note [Erkaev et al., Phys. Rev. Lett. 84, 1455 (2000)], the reconnection rate is found by matching the outer Petschek solution and the inner diffusion region solution. Here the details of the numerical simulation of the diffusion region are presented and the asymptotic procedure which is used for deriving the reconnection rate is described. The reconnection rate is obtained as a decreasing function of the diffusion region length. For a sufficiently large diffusion region scale, the reconnection rate becomes close to that obtained in the Sweet-Parker solution with the inverse square root dependence on the magnetic Reynolds number Re m , determined for the global size of the current sheet. On the other hand, for a small diffusion region length scale, the reconnection rate turns out to be very similar to that obtained in the Petschek model with a logarithmic dependence on the magnetic Reynolds number Re m . This means that the Petschek regime seems to be possible only in the case of a strongly localized conductivity corresponding to a small scale of the diffusion region. c 2001 American Institute of Physics.
http://icm.krasn.ru/refextra.php?id=1805,
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Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Semenov, V.S.; Семенов В.С.; Alexeev, H.K.; Алексеев Г.К.; Biernat, H.K.; Еркаев, Николай Васильевич
З973.2-018
G65
G65
Visualization of data by method of elastic maps and its applications in genomics,economics and sociology
[Electronic resource]. - Electronic data
. - Режим доступа: http://icm.krasn.ru/refextra.php?id=2102. - Электрон. версия печ. публикации : научное издание / Gorban A.N. Zinovyev A.Y. - Electronic data // Institut des Hautes Etudes Scientifiques Preprint. IHES M/01/36. - 2001
Перевод заглавия: Визуализация данных с помощью метода упругих карт и его приложения в геномике, экономике и социологии
Аннотация: Technology of data visualization and data modeling is suggested. The basic of the technology is original idea of elastic net and methods of its construction and application. A short review of relevant methods has been made. The methods proposed are illustrated by applying them to the real biological, economical, sociological datasets and to some model data distributions.
http://icm.krasn.ru/refextra.php?id=2102
Доп.точки доступа:
Zinovyev, A.Y.; Зиновьев, Андрей Юрьевич; Горбань, Александр Николаевич
. - Режим доступа: http://icm.krasn.ru/refextra.php?id=2102. - Электрон. версия печ. публикации : научное издание / Gorban A.N. Zinovyev A.Y. - Electronic data // Institut des Hautes Etudes Scientifiques Preprint. IHES M/01/36. - 2001
Перевод заглавия: Визуализация данных с помощью метода упругих карт и его приложения в геномике, экономике и социологии
Аннотация: Technology of data visualization and data modeling is suggested. The basic of the technology is original idea of elastic net and methods of its construction and application. A short review of relevant methods has been made. The methods proposed are illustrated by applying them to the real biological, economical, sociological datasets and to some model data distributions.
http://icm.krasn.ru/refextra.php?id=2102
Доп.точки доступа:
Zinovyev, A.Y.; Зиновьев, Андрей Юрьевич; Горбань, Александр Николаевич
В19
G65
G65
Macroscopic dynamics through coarse-graining: A solvable example.
[Text] : статья / A.N. Gorban, I.V. Karlin // Physical review E. - 2002. - Vol. 65. - Ст. 026116. - p. 1-5DOI 10.1103/PhysRevE.65.026116
Перевод заглавия: Получение макроскопической динамики с помощью огрубления: точно решаемый пример
Аннотация: The recently derived fluctuation-dissipation formula (A. N. Gorban et al., Phys. Rev. E 63, 066124 ~2001) is illustrated by the explicit computation for McKean's kinetic model (H. P. McKean, J. Math. Phys. 8, 547 ~1967). It is demonstrated that the result is identical, on the one hand, to the sum of the Chapman-Enskog expansion, and, on the other hand, to the exact solution of the invariance equation. The equality between all three results holds up to the crossover from the hydrodynamic to the kinetic domain.
http://icm.krasn.ru/refextra.php?id=2087,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Karlin, I.V.; Карлин, Илья Вениаминович; Горбань, Александр Николаевич
Перевод заглавия: Получение макроскопической динамики с помощью огрубления: точно решаемый пример
Аннотация: The recently derived fluctuation-dissipation formula (A. N. Gorban et al., Phys. Rev. E 63, 066124 ~2001) is illustrated by the explicit computation for McKean's kinetic model (H. P. McKean, J. Math. Phys. 8, 547 ~1967). It is demonstrated that the result is identical, on the one hand, to the sum of the Chapman-Enskog expansion, and, on the other hand, to the exact solution of the invariance equation. The equality between all three results holds up to the crossover from the hydrodynamic to the kinetic domain.
http://icm.krasn.ru/refextra.php?id=2087,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Karlin, I.V.; Карлин, Илья Вениаминович; Горбань, Александр Николаевич
В3
A80
A80
Instability of the magnetopause with a finite curvature radius and velocity shear
[Text] : статья / I.L. Arshukova, N.V. Erkaev, H.K. Biernat // International journal of geomagnetism and aeronomy. - 2002. - Vol. 3, № 1. - p. 27–34
Аннотация: This article deals with the magnetohydrodynamic instability of the high magnetic shear magnetopause, which is considered to be a thin layer with a constant curvature radius and plasma velocity shear. In our model, the magnetic field and plasma density are assumed to be piecewise constant in three regions: in the magnetosphere adjacent to the magnetopause, in the magnetosheath, and inside a thin layer associated with the magnetopause. The plasma parameters and the magnetic field are assumed to obey the ideal incompressible magnetohydrodynamics. A Fourier analysis is used to calculate small perturbations of magnetic field and plasma parameters near the magnetopause in a linear approximation. The instability growth rate is obtained as a function of the angle between the velocity vector and the geomagnetic field direction for different plasma bulk speeds, wave numbers and curvature radii. The resulting instability is a mixture of interchange and Kelvin-Helmholtz instabilities on a surface with a nonzero curvature. The instability growth rate is an increasing function of the tangential velocity component perpendicular to the magnetic field. On the other hand, the growth rate is a decreasing function of the velocity component along the magnetic field.
http://icm.krasn.ru/refextra.php?id=2427,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Erkaev, N.V.; Еркаев, Николай Васильевич; Biernat, H.K.; Аршукова И.Л.
Аннотация: This article deals with the magnetohydrodynamic instability of the high magnetic shear magnetopause, which is considered to be a thin layer with a constant curvature radius and plasma velocity shear. In our model, the magnetic field and plasma density are assumed to be piecewise constant in three regions: in the magnetosphere adjacent to the magnetopause, in the magnetosheath, and inside a thin layer associated with the magnetopause. The plasma parameters and the magnetic field are assumed to obey the ideal incompressible magnetohydrodynamics. A Fourier analysis is used to calculate small perturbations of magnetic field and plasma parameters near the magnetopause in a linear approximation. The instability growth rate is obtained as a function of the angle between the velocity vector and the geomagnetic field direction for different plasma bulk speeds, wave numbers and curvature radii. The resulting instability is a mixture of interchange and Kelvin-Helmholtz instabilities on a surface with a nonzero curvature. The instability growth rate is an increasing function of the tangential velocity component perpendicular to the magnetic field. On the other hand, the growth rate is a decreasing function of the velocity component along the magnetic field.
http://icm.krasn.ru/refextra.php?id=2427,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Erkaev, N.V.; Еркаев, Николай Васильевич; Biernat, H.K.; Аршукова И.Л.
В3
E68
E68
Ideal Magnetohydrodynamic Flow Around a Blunt Body under Anisotropic Pressure
[Text]. - Electronic data (106 Kb)
. - Режим доступа: http://icm.krasn.ru/refextra.php?id=1472. - Электрон. версия печ. публикации . - Режим доступа: http://library.krasn.ru/trudy/2000/1472erkaev_PHP03413_eng.pdf (Полный текст) : статья / Erkaev N.V., Biernat H.K., Farrugia C.J. - Electronic data (106 Kb) // Physics of Plasmas. - 2000. - Vol. 7, № 7. - p. 3413-3420
Аннотация: The plasma flow past a blunt obstacle in an ideal magnetohydrodynamic ~MHD! model is studied, taking into account the tensorial nature of the plasma pressure. Three different closure relations are explored and compared with one another. The first one is the adiabatic model proposed by Chew, Goldberger, and Low. The second closure is based on the mirror instability criterion, while the third depends on an empirical closure equation obtained from observations of solar wind flow past the Earth's magnetosphere. The latter is related with the criterion of the anisotropic ion cyclotron instability. In the presented model, the total pressure, defined as the sum of magnetic pressure and perpendicular plasma pressure, is assumed to be a known function of Cartesian coordinates. The calculation is based on the Newtonian approximation for the total pressure along the obstacle and on a quadratic behavior with distance from the obstacle along the normal direction. Profiles of magnetic field strength and plasma parameters are presented along the stagnation stream line between the shock and obstacle of an ideal plasma flow with anisotropy in thermal pressure and temperature.
http://icm.krasn.ru/refextra.php?id=1472,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Biernat, H.K.; Farrugia, C.J.; Еркаев, Николай Васильевич
. - Режим доступа: http://icm.krasn.ru/refextra.php?id=1472. - Электрон. версия печ. публикации . - Режим доступа: http://library.krasn.ru/trudy/2000/1472erkaev_PHP03413_eng.pdf (Полный текст) : статья / Erkaev N.V., Biernat H.K., Farrugia C.J. - Electronic data (106 Kb) // Physics of Plasmas. - 2000. - Vol. 7, № 7. - p. 3413-3420
| ГРНТИ |
Аннотация: The plasma flow past a blunt obstacle in an ideal magnetohydrodynamic ~MHD! model is studied, taking into account the tensorial nature of the plasma pressure. Three different closure relations are explored and compared with one another. The first one is the adiabatic model proposed by Chew, Goldberger, and Low. The second closure is based on the mirror instability criterion, while the third depends on an empirical closure equation obtained from observations of solar wind flow past the Earth's magnetosphere. The latter is related with the criterion of the anisotropic ion cyclotron instability. In the presented model, the total pressure, defined as the sum of magnetic pressure and perpendicular plasma pressure, is assumed to be a known function of Cartesian coordinates. The calculation is based on the Newtonian approximation for the total pressure along the obstacle and on a quadratic behavior with distance from the obstacle along the normal direction. Profiles of magnetic field strength and plasma parameters are presented along the stagnation stream line between the shock and obstacle of an ideal plasma flow with anisotropy in thermal pressure and temperature.
http://icm.krasn.ru/refextra.php?id=1472,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Biernat, H.K.; Farrugia, C.J.; Еркаев, Николай Васильевич
Reduced description in the reaction kinetics
[Text]. - Electronic data (133 Kb) : статья / A.N. Gorban, I.V. Karlin, V.B. Zmievskii, S.V. Dymova. - Electronic data (133 Kb) // Physica A. - 2000. - 275. - p. 361-379
Перевод заглавия: Сокращение описания в химической кинетике
Аннотация: Models of complex reactions in thermodynamically isolated systems often demonstrate evolution towards low-dimensional manifolds in the phase space. For this class of models, we suggest a direct method to construct such manifolds, and thereby to reduce the effective dimension of the problem. The approach realizes the invariance principle of the reduced description, it is based on iterations rather than on a small parameter expansion, it leads to tractable linear problems, and is consistent with thermodynamic requirements. The approach is tested with a model of catalytic reaction.
http://icm.krasn.ru/refextra.php?id=2086,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Gorban, A.N.; Горбань, Александр Николаевич; Karlin, I.V.; Карлин, Илья Вениаминович; Zmievskii, V.B.; Змиевский В.Б.; Dymova, S.V.
Перевод заглавия: Сокращение описания в химической кинетике
Аннотация: Models of complex reactions in thermodynamically isolated systems often demonstrate evolution towards low-dimensional manifolds in the phase space. For this class of models, we suggest a direct method to construct such manifolds, and thereby to reduce the effective dimension of the problem. The approach realizes the invariance principle of the reduced description, it is based on iterations rather than on a small parameter expansion, it leads to tractable linear problems, and is consistent with thermodynamic requirements. The approach is tested with a model of catalytic reaction.
http://icm.krasn.ru/refextra.php?id=2086,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Gorban, A.N.; Горбань, Александр Николаевич; Karlin, I.V.; Карлин, Илья Вениаминович; Zmievskii, V.B.; Змиевский В.Б.; Dymova, S.V.
Short-Wave Limit of Hydrodynamics
[Text] : a Soluble Example / A.N. Gorban, I.V. Karlin // Physical Review Letters. - 1996. - Vol. 77, № 2. - p. 282-285
Перевод заглавия: Коротковолновой предел гидродинамики: точно решаемый пример
Аннотация: The Chapman-Enskog series for shear stress is summed up in a closed form for a simple model of Grad moment equations. The resulting linear hydrodynamics is demonstrated to be stable for all wavelengths, and the exact asymptotic of the acoustic spectrum in the short-wave domain is obtained.
http://icm.krasn.ru/refextra.php?id=70,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Karlin, I.V.; Карлин, Илья Вениаминович; Горбань, Александр Николаевич
Перевод заглавия: Коротковолновой предел гидродинамики: точно решаемый пример
Аннотация: The Chapman-Enskog series for shear stress is summed up in a closed form for a simple model of Grad moment equations. The resulting linear hydrodynamics is demonstrated to be stable for all wavelengths, and the exact asymptotic of the acoustic spectrum in the short-wave domain is obtained.
http://icm.krasn.ru/refextra.php?id=70,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Karlin, I.V.; Карлин, Илья Вениаминович; Горбань, Александр Николаевич
Г
G65
G65
A model of autooscillations in association reactions
[Text] : статья / A.N. Gorban, V.I. Bykov // Chemical Engineering Science. - 1987. - Vol. 42, № 5. - p. 1249-1251
Перевод заглавия: Модель автоколебаний в реакциях ассоциации
Аннотация: The aim of this paper is to show that association reactions can result in the appearance of autooscillations in nonlinear systems.
http://icm.krasn.ru/refextra.php?id=2100,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Bykov, V.I.; Быков, Валерий Иванович; Горбань, Александр Николаевич
Перевод заглавия: Модель автоколебаний в реакциях ассоциации
Аннотация: The aim of this paper is to show that association reactions can result in the appearance of autooscillations in nonlinear systems.
http://icm.krasn.ru/refextra.php?id=2100,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Bykov, V.I.; Быков, Валерий Иванович; Горбань, Александр Николаевич
Г
G65
G65
Thermodynamic function analogue for reactions proceeding without interaction of various substances.
[Text] : статья / A.N. Gorban, V.I. Bykov, G.S. Yablonskii // Chemical Engineering Science. - 1986. - Vol. 41, № 11. - P2739-2745
Перевод заглавия: Аналог термодинамических функций для реакций без взаимодействия различных веществ
Аннотация: Function similar to Lyapunov's function has been constructed for reactions with ?i Ai ?j ?j Aj stages. This provides for the quasi-thermodynamics of the appropriate kinetic model, which implies steady-state uniqueness and global stability in the reaction polyhedron. The kinetic law generalizing the Marcelin -de Donder kinetics has been written for a separate stage. Explicit Lyapunov thermodynamic functions have been written for various conditions of the reaction proceeding in closed systems. The matrix of linear approximation close to equilibrium is expressed by means of the introduced scalar product. Particularly, the absence of damped oscillations as equilibrium is approached as shown.
http://icm.krasn.ru/refextra.php?id=2098,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Bykov, V.I.; Быков, Валерий Иванович; Yablonskii, G.S.; Яблонский, Григорий Семенович; Горбань, Александр Николаевич
Перевод заглавия: Аналог термодинамических функций для реакций без взаимодействия различных веществ
| ГРНТИ |
Аннотация: Function similar to Lyapunov's function has been constructed for reactions with ?i Ai ?j ?j Aj stages. This provides for the quasi-thermodynamics of the appropriate kinetic model, which implies steady-state uniqueness and global stability in the reaction polyhedron. The kinetic law generalizing the Marcelin -de Donder kinetics has been written for a separate stage. Explicit Lyapunov thermodynamic functions have been written for various conditions of the reaction proceeding in closed systems. The matrix of linear approximation close to equilibrium is expressed by means of the introduced scalar product. Particularly, the absence of damped oscillations as equilibrium is approached as shown.
http://icm.krasn.ru/refextra.php?id=2098,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Bykov, V.I.; Быков, Валерий Иванович; Yablonskii, G.S.; Яблонский, Григорий Семенович; Горбань, Александр Николаевич
В3
M66
M66
Numerical Simulation the Periodic Operating Regime of HRE with MHD Control
[Text]. - Electronic text data (73 Kb)
. - Режим доступа: http://icm.krasn.ru/refextra.php?id=1515. - Электрон. версия печ. публикации . - Режим доступа: http://library.krasn.ru/trudy/2000/1515lab23eng_28.pdf (Полный текст) : статья / A.N. Mierau, V.A. Derevyanko, A.N. Vasilyev. - Electronic text data (73 Kb) // X International Conference on the Methods of Aerophysical Research. - Novosibirsk, 2000. - Part III. - p. 143-149
Аннотация: Nowadays both in Russia and abroad active research has been conducted on developing perspective hypersonic aerospace aircraft. The developing of such aircraft would allow to essentially expand aircraft possibilities and to reduce delivery cost of goods to the near-earth orbit. In many countries of the world there are programs of creation of hypersonic aircraft such as: HOTOL in Great Britain, NASP in USA, HERMES in France. One of key while conducting these projects is the creation of a hypersonic ramjet engine having necessary propulsive, mass and dimensional characteristics with all altitude range and flight velocities of an aircraft. The basic difficulties, in development of such engine types are caused by substantial of deterioration of quality of fuel mixture with an oxidant under supersonic flow velocities in the combustion chamber, which results in decrease of an engine efficiency and deterioration of its propulsion. To increase the efficiency of HRE with the supersonic flow velocity in the combustion chamber the authors offered MHD control of gas flow in the channel HRE based on creation in a stream of local plasma areas with temperature 104 K interacting with an external magnetic field [1], [2]. The work presents investigation results for the structure of non-stationary gas-dynamic flow in the channel HRE with MHD - control. It also describes the calculation of propulsion performance characteristics of the given engine on the basis of mathematical simulation of processes, which take place in the channel of an engine. Thee work objective was the research of non-stationary periodic flow with heat application in the tract HRE with MHD - control on the basis of mathematical modeling of processes which take place in the channel of an engine and the calculation of propulsion performance characteristics of an engine. In the work the model HRE including the air intake, MHD - channel and nozzle was considered. The MHD - channel is made of two flat electrodes and sidewalls from a dielectric. The local constant flow heat permitting to create periodical local plasma areas (T- layer) is provided with the systems of initiation the constant magnetic field in the volume of the channel is ensured with an external magnetic system.
http://icm.krasn.ru/refextra.php?id=1515,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Derevyanko, V.A.; Деревянко, Валерий Александрович; Vasilyev, A.N.; Васильев А.Н.
. - Режим доступа: http://icm.krasn.ru/refextra.php?id=1515. - Электрон. версия печ. публикации . - Режим доступа: http://library.krasn.ru/trudy/2000/1515lab23eng_28.pdf (Полный текст) : статья / A.N. Mierau, V.A. Derevyanko, A.N. Vasilyev. - Electronic text data (73 Kb) // X International Conference on the Methods of Aerophysical Research. - Novosibirsk, 2000. - Part III. - p. 143-149
Аннотация: Nowadays both in Russia and abroad active research has been conducted on developing perspective hypersonic aerospace aircraft. The developing of such aircraft would allow to essentially expand aircraft possibilities and to reduce delivery cost of goods to the near-earth orbit. In many countries of the world there are programs of creation of hypersonic aircraft such as: HOTOL in Great Britain, NASP in USA, HERMES in France. One of key while conducting these projects is the creation of a hypersonic ramjet engine having necessary propulsive, mass and dimensional characteristics with all altitude range and flight velocities of an aircraft. The basic difficulties, in development of such engine types are caused by substantial of deterioration of quality of fuel mixture with an oxidant under supersonic flow velocities in the combustion chamber, which results in decrease of an engine efficiency and deterioration of its propulsion. To increase the efficiency of HRE with the supersonic flow velocity in the combustion chamber the authors offered MHD control of gas flow in the channel HRE based on creation in a stream of local plasma areas with temperature 104 K interacting with an external magnetic field [1], [2]. The work presents investigation results for the structure of non-stationary gas-dynamic flow in the channel HRE with MHD - control. It also describes the calculation of propulsion performance characteristics of the given engine on the basis of mathematical simulation of processes, which take place in the channel of an engine. Thee work objective was the research of non-stationary periodic flow with heat application in the tract HRE with MHD - control on the basis of mathematical modeling of processes which take place in the channel of an engine and the calculation of propulsion performance characteristics of an engine. In the work the model HRE including the air intake, MHD - channel and nozzle was considered. The MHD - channel is made of two flat electrodes and sidewalls from a dielectric. The local constant flow heat permitting to create periodical local plasma areas (T- layer) is provided with the systems of initiation the constant magnetic field in the volume of the channel is ensured with an external magnetic system.
http://icm.krasn.ru/refextra.php?id=1515,
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Derevyanko, V.A.; Деревянко, Валерий Александрович; Vasilyev, A.N.; Васильев А.Н.
В3
G65
G65
Method of invariant manifold for chemical kinetics
[Electronic resource] : научное издание / A.N. Gorban, I.V. Karlin // arXiv:cond-mat/0207231. - 2002. - Vol.1 : комбин.
Перевод заглавия: Метод инвариантного многообразия в химической кинетике
Аннотация: In this paper, we review the construction of low-dimensional manifolds of reduced description for equations of chemical kinetics from the standpoint of the method of invariant manifold (MIM). MIM is based on a formulation of the condition of invariance as an equation, and its solution by Newton iterations. A review of existing alternative methods is extended by a thermodynamically consistent version of the method of intrinsic low-dimensional manifolds. A grid-based version of MIM is developed, and model extensions of low-dimensional dynamics are described. Generalizations to open systems are suggested. The set of methods covered makes it possible to effectively reduce description in chemical kinetics.
http://icm.krasn.ru/refextra.php?id=2106
Доп.точки доступа:
Karlin, I.V.; Карлин, Илья Вениаминович; Горбань, Александр Николаевич
Перевод заглавия: Метод инвариантного многообразия в химической кинетике
| ГРНТИ |
Аннотация: In this paper, we review the construction of low-dimensional manifolds of reduced description for equations of chemical kinetics from the standpoint of the method of invariant manifold (MIM). MIM is based on a formulation of the condition of invariance as an equation, and its solution by Newton iterations. A review of existing alternative methods is extended by a thermodynamically consistent version of the method of intrinsic low-dimensional manifolds. A grid-based version of MIM is developed, and model extensions of low-dimensional dynamics are described. Generalizations to open systems are suggested. The set of methods covered makes it possible to effectively reduce description in chemical kinetics.
http://icm.krasn.ru/refextra.php?id=2106
Доп.точки доступа:
Karlin, I.V.; Карлин, Илья Вениаминович; Горбань, Александр Николаевич
On a diffusion model of a catalitic reaction
[Текст] : статья / В.И. Быков и др. // React. Kinet. Catal Lett. - 1979. - № 4, Vol. 12 . - С. 503-508
Доп.точки доступа:
Kamenshchikov, L.P.; Каменщиков, Леонид Петрович; Yablonskii, G.S.; Яблонский, Григорий Семенович; Быков, Валерий Иванович
Доп.точки доступа:
Kamenshchikov, L.P.; Каменщиков, Леонид Петрович; Yablonskii, G.S.; Яблонский, Григорий Семенович; Быков, Валерий Иванович
Study of a Vortical Jet Catch Device on a three-dimensional Mathematical Model
[Текст] : научное издание / O. V. Konishcheva [и др.] // Russ. J. Eng. Thermophys. - 1996. - № 3 , Vol. 6 . - С. 241-255
Доп.точки доступа:
Konishcheva, O.V.; Конищева О.В.; Kovalevskii, A.M.; Ковалевский А.М.; Kamenshchikov, L.P.; Каменщиков, Леонид Петрович; Dekterev, A.A.; Дектерев А.А.
Доп.точки доступа:
Konishcheva, O.V.; Конищева О.В.; Kovalevskii, A.M.; Ковалевский А.М.; Kamenshchikov, L.P.; Каменщиков, Леонид Петрович; Dekterev, A.A.; Дектерев А.А.
The shortest time and/or the shortest path strategies in a CA FF pedestrian dynamics model
[Текст] : статья / Е.С. Кирик и др. // Журнал СФУ. Математика и физика. - 2009. - Т.2, №.3. - С. 271-278
Доп.точки доступа:
Юргельян, Т.Б.; Круглов, Д.В.
Доп.точки доступа:
Юргельян, Т.Б.; Круглов, Д.В.
Two-dimensional nonstationary mathematical model of water catchments
[Текст] : статья / D.A. Burakov и др. // Notes on Numerical Fluid Mechanics and Multidisciplinary Design. - 2011. - Vol. 115. - p. 253-266. - (Lecture Notes in Computer Science)DOI 10.1007/978-3-642-17770-5_19
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Полный текст
Доп.точки доступа:
Karepova, E.D.; Карепова, Евгения Дмитриевна; Shaidurov, V.V.; Шайдуров, Владимир Викторович
Полный текст
Доп.точки доступа:
Karepova, E.D.; Карепова, Евгения Дмитриевна; Shaidurov, V.V.; Шайдуров, Владимир Викторович
The model of fungal population dynamics affected by nystatin
[Text] : статья / E.N. Gromozova, S.V. Voychuk, M.G. Sadovskii // International Journal of Quantum Chemistry. - 2010. - Vol. 110, № 1. - p. 242-251DOI 10.1002/qua.22050
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Полный текст на сайте правообладателя
Доп.точки доступа:
Voychuk, S.V.; Sadovskii, M.G.; Садовский, Михаил Георгиевич
Полный текст на сайте правообладателя
Доп.точки доступа:
Voychuk, S.V.; Sadovskii, M.G.; Садовский, Михаил Георгиевич
Group properties and exact solutions of equations for vibrational convection of a binary mixture
[Текст] : статья / I.I. Ryzhkov // Lournal of Applied Mechanics and Technical Physics. - 2011. - Vol. 52, Iss. 4. - p. 560-570DOI 10.1134/S0021894411040080
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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
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
Reduction of three-dimensional model of the far turbulent wake to one-dimensional problem
[Text] : статья / O. V. Kaptsov, A. V. Schmidt // Dynamical Systems and Differential Equations, DCDS Supplement. - 2011. - Issue Special: Proceedings of the 8th AIMS International Conference. - p. 794-803
Полный текст на сайте правообладателя
Доп.точки доступа:
Schmidt, A.V.; Капцов, Олег Викторович
Полный текст на сайте правообладателя
Доп.точки доступа:
Schmidt, A.V.; Капцов, Олег Викторович
Similarity reduction of a three-dimensional model of the far turbulent wake behind a towed body
[Text]. - Electronic text data : статья / A.V. Schmidt. - Electronic text data // J. Phys.: Conf. Ser. - 2011. - Vol. 318. - Ст. 042039DOI 10.1088/1742-6596/318/4/042039
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Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Шмидт, Алексей Владимирович
Полный текст
Держатели документа:
ИВМ СО РАН : 660036, Красноярск, Академгородок, 50, стр.44
Доп.точки доступа:
Шмидт, Алексей Владимирович