Труды сотрудников ИВМ СО РАН

[Text] : статья / E. N. Vasilyev, V. A. Derevyanko, A. N. Mierau // The 3rd Workshop on Magneto-Plasma Aerodynamics in Aerospase Applications. - Moscow, 2001. - p. 160-164

ГРНТИ

29.27.41

Аннотация: Nowadays in leading countries of the world active research has been conducted on developing the perspective hypersonic aerospace aircraft. One of the key directions of research on this problem is the development highly efficient hypersonic ramjet engine (HRE). It is known that the efficiency of HRE with supersonic flow velocities in the combustion chamber decreases with the increasing of flight velocities. The basic losses take place in the combustion chamber as firstly the relative losses of working capacity of gas is considerably increasing at the heat supply, secondly because of high speed of the flow the quality of fuel confusion with the air on the bounded length considerably deteriorates and the completeness of combustion declines. The remarks of estimates demonstrate that for this reason the application of HRE is bounded evidently with the Mach numbers of flight that doesn't exceed 11-12. At the same time the thermodynamic estimates demonstrate the considerable reserve on the specific characteristics. This reserve can partly be realized by the reconstruction of the structure of the current using MHD-interaction.

http://icm.krasn.ru/refextra.php?id=2342,
Полный текст

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

Доп.точки доступа:
Derevyanko, V.A.; Деревянко, Валерий Александрович; Mierau, A.N.; Васильев, Евгений Николаевич

[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.

[Text] / E.N. Vasiliev // Thermophys. Aeromechanics. - 2010. - Vol. 17, Is. 3. - pp. 411-418, DOI 10.1134/S0869864310030121. - Cited References: 13 . - ISSN 0869-8643РУБ Thermodynamics + Mechanics

Аннотация: The modeling of the formation of the equilibrium arc discharge structure in the axisymmetric formulation was carried out in a wide range of the values of current and radius. The boundary separating the radiation and heat-conducting regimes of discharge combustion was determined from computed data. The influence of energy mechanisms on the structure of the discharge was analysed, and a channel model was proposed for computing its parameters in the radiation regime.


Доп.точки доступа:
Vasiliev, E.N.; Васильев, Евгений Николаевич

[Text] : статья / E. Chiavazzo [et al.] // Proceedings of the Combustion Institute. - 2008. - Vol. 32, Iss. 1. - p. 519–526DOI 10.1016/j.proci.2008.05.014 . -
Аннотация: The Method of Invariant Grid (MIG) is a model reduction technique based on the concept of slow invariant manifold (SIM). The MIG approximates the SIM by a set of nodes in the concentration space (invariant grid). In the present work, the MIG is applied to a realistic combustion system: an adiabatic constant volume reactor with H2–air at stoichiometric proportions. By considering the thermodynamic Lyapunov function of the detailed kinetic system, the notion of the quasi-equilibrium manifold (QEM) is adopted as an initial approximation to the SIM. One- and two-dimensional discrete approximations of the QEM (quasi-equilibrium grids) are constructed and refined via MIG to obtain the corresponding invariant grids. The invariant grids are tabulated and used to integrate the reduced system. Excellent agreement between the reduced and detailed kinetics is demonstrated.

Полный текст на сайте правообладателя

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

Доп.точки доступа:
Chiavazzo, Eliodoro; Karlin, I.V.; Карлин, Илья Вениаминович; Frouzakisa, Christos; Boulouchos, Konstantinos

[Text] : статья / E. Chiavazzo [et al.] // International Journal of Numerical Methods for Heat & Fluid Flow. - 2011. - Vol. 21, Iss. 5. - p. 494-517, DOI 10.1108/09615531111135792 . - ISSN 0961-5539
Аннотация: Purpose – The paper aims to be a first step toward the efficient, yet accurate, solution of detailed combustion fields using the lattice Boltzmann (LB) method, where applications are still limited due to both the stiffness of the governing equations and the large amount of fields to solve. Design/methodology/approach – The suggested methodology for model reduction is developed in the setting of slow invariant manifold construction, including details of the while. The simplest LB equation is used in order to work out the procedure of coupling of the reduced model with the flow solver. Findings – The proposed method is validated with the 2D simulation of a premixed laminar flame in the hydrogen-air mixture, where a remarkable computational speedup and memory saving are demonstrated. Research limitations/implications – Because of the chosen detailed LB model, the flow field may be described with unsatisfactory accuracy: this motivates further investigation in this direction in the near future. Practical implications – A new framework of simulation of reactive flows is available, based on a coupling between accurate reduced reaction mechanism and the LB representation of the flow phenomena. Hence, the paper includes implications on how to perform accurate reactive flow simulations at a fraction of the cost required in the detailed model. Originality/value – This paper meets an increasing need to have efficient and accurate numerical tools for modelling complex phenomena, such as pollutant formation during combustion.


Доп.точки доступа:
Chiavazzo, Eliodoro; Karlin, I.V.; Карлин, Илья Вениаминович; Gorban, A.N.; Горбань, Александр Николаевич; Boulouchos, Konstantinos

[Text] : статья / A. N. Gorban, G. S. Yablonskii // Chemical Engineering Science. - 2011. - Vol. 66, Iss. 21. - p. 5388-5399DOI 10.1016/j.ces.2011.07.054 . -
Аннотация: The principle of detailed balance states that in equilibrium each elementary process is equilibrated by its reverse process. For many real physico-chemical complex systems (e.g. homogeneous combustion, heterogeneous catalytic oxidation, most enzyme reactions, etc.), detailed mechanisms include both reversible and irreversible reactions. In this case, the principle of detailed balance cannot be applied directly. We represent irreversible reactions as limits of reversible steps and obtain the principle of detailed balance for complex mechanisms with some irreversible elementary processes. We prove two consequences of the detailed balance for these mechanisms: the structural condition and the algebraic condition that form together the extended form of detailed balance. The algebraic condition is the principle of detailed balance for the reversible part. The structural condition is the convex hull of the stoichiometric vectors of the irreversible reactions has empty intersection with the linear span of the stoichiometric vectors of the reversible reactions. Physically, this means that the irreversible reactions cannot be included in oriented cyclic pathways. The systems with the extended form of detailed balance are also the limits of the reversible systems with detailed balance when some of the equilibrium concentrations (or activities) tend to zero. Surprisingly, the structure of the limit reaction mechanism crucially depends on the relative speeds of this tendency to zero.

Полный текст на сайте правообладателя


Доп.точки доступа:
Yablonskii, G.S.; Горбань, Александр Николаевич

[Text] / Y. Y. STEPANSKII [et al.] // React. Kinet. Catal. Lett. - 1980. - Vol. 14, Is. 3. - P335-339, DOI 10.1007/BF02073501. - Cited References: 3 . - ISSN 0133-1736РУБ Chemistry, Physical


WOS

Держатели документа:
ACAD SCI USSR,CTR COMP,KRASNOYARSK,USSR
ИВМ СО РАН
Доп.точки доступа:
STEPANSKII, Y.Y.; EVMENENKO, N.P.; YABLONSKII, G.S.; BYKOV, V.I.; Быков, Валерий Иванович

/ V. I. Bykov, T. I. Vishnevskaya, N. M. Tsirul'nichenko // Combust. Explos. - 1997. - Vol. 33, Is. 4. - P425-430, DOI 10.1007/BF02671835. - Cited References: 11 . - ISSN 0010-5082РУБ Thermodynamics + Energy & Fuels + Engineering, Multidisciplinary + Engineering, Chemical + Materials Science, Multidisciplinary

Аннотация: We have considered the problem of numerical calculation of the dynamics of lignite combustion with allowance Sor complicated physicochemical phenomena: heat exchange of lignite particles with the ambient medium, heat transfer inside a lignite particle, yield and combustion of volatile substances, and combustion of a coke residue. The diffusive-kinetic model of combustion and the results of a numerical calculation of the dynamics of this process are given.

WOS,
Scopus

Держатели документа:
Russian Acad Sci, Ctr Comp, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660062, Russia
Krasnoyarsk State Univ, Inst Physicotech, Krasnoyarsk 660036, Russia
ИВМ СО РАН
Computing Center, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk State University, Krasnoyarsk 660062, Russian Federation
Physicotechnical Institute, Krasnoyarsk State University, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Bykov, V.I.; Vishnevskaya, T.I.; Tsirul'nichenko, N.M.

/ V. I. Bykov, E. P. Volokitin, S. A. Treskov // Combust. Explos. - 1997. - Vol. 33, Is. 3. - P294-300, DOI 10.1007/BF02671868. - Cited References: 14 . - ISSN 0010-5082РУБ Thermodynamics + Energy & Fuels + Engineering, Multidisciplinary + Engineering, Chemical + Materials Science, Multidisciplinary

Аннотация: A parametric analysis of the Zel'dovich-Semenov model describing the dynamics of an exothermic reaction in a well-stirred reactor is performed on the basis of bifurcation theory. Bifurcation diagrams that have not been revealed in previous studies are obtained.

WOS,
Scopus

Держатели документа:
Russian Acad Sci, Computat Ctr, Siberian Div, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Math, Siberian Div, Novosibirsk 630090, Russia
ИВМ СО РАН
Computational Center, Siberian Division, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Institute of Mathematics, Siberian Division, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation

Доп.точки доступа:
Bykov, V.I.; Volokitin, E.P.; Treskov, S.A.

[Текст] : статья / Г. Г. Крушенко, И. В. Кукушкин // Вестник Сибирского государственного аэрокосмического университета им. академика М.Ф. Решетнева. - 2016. - Т. 17, № 4. - С. 1053-1061 . - ISSN 1816-9724
   Перевод заглавия: SOME TOOLS AND WAYS OF CONNECTING THE MATING PARTS OF AEROSPACE PRODUCTS

УДК

621.757

Аннотация: Практически все изделия различных отраслей промышленного производства состоят из комплектующих деталей, часть из которых соединяется в узлы и механизмы с помощью различных способов и средств. Такие соединения могут выполняться как в подвижном, так и в неподвижном вариантах, которые, в свою очередь, могут быть выполнены как разъемными, так и неразъемными, а применяемые для этого способы и технологии выбираются в зависимости от технических возможностей обеспечения безопасности собираемого изделия в эксплуатации, стоимости и других показателей. В ряде случаев выгоднее собрать узел/механизм или изделие именно из соединяемых с помощью крепежа комплектующих деталей, чем изготовлять его из «цельного» материала (monolithic bulk material). При изготовлении сложных изделий, относящихся, например, к аэрокосмической технике, для обеспечения точности и надежности сборки применяется широкий диапазон технологий соединения деталей, особенно из разнородных материалов, включая холодную сварку (cold welding), которая выполняется без нагрева соединяемых деталей, плотное соединение происходит в результате их сжатия до появления пластических деформаций; сварку трением с перемешиванием (friction stir welding); окантовывание с помощью штампа (mechanical clinching); клепальную технологию (self-pierce riveting) и др. Приводятся конкретные примеры выполнения соединения деталей при изготовлении изделий аэрокосмической отрасли, такие как сварка (корпуса летательных аппаратов), пайка (камера сгорания), соединение с натягом (головка цилиндра), соединение при помощи шпилек (корпус турбонасосного агрегата), штифтов (лопатки спрямляющего аппарата вентилятора газотурбинного двигателя) и др.
Almost all products of various branches of industrial production consist of components, some of which are connected in the nodes and the mechanisms through various ways and means. Such connections can be made, both in the mobile and fixed variants, which, in turn, may be made detachable and non-detachable, and used methods and technologies which are chosen depending on the technical capabilities, security, collect the product in operation, cost and other factors. In some cases it is more profitable to collect node/mechanism or product originating from connected via fastener components than manufacturing it from a “solid” material (monolithic bulk material). In the manufacture of complex products, for example, related to aerospace engineering, to ensure the accuracy and reliability of assembly a wide range of technologies of details connection, especially of dissimilar materials, including: cold welding, which is performed without heating the joined parts, a tight coupling occurs as a result of their compression until plastic deformation, friction welding with stirring, mechanical clinching, riveting technology and other, is applied. The article provides the specific examples of the connection parts in the manufacture of products of aerospace industry, such as welding (case aircraft), soldering (combustion chamber), the connection tightness (cylinder head), the connection with bolts (case turbo-pump assembly), pins (blades directing vanes of the fan gas turbine engine) and other.

РИНЦ

Держатели документа:
Институт вычислительного моделирования СО РАН
Сибирский государственный аэрокосмический университет имени академика М. Ф. Решетнева

Доп.точки доступа:
Кукушкин, И.В.; Kukushkin I.V.; Krushenko G.G.

[Текст] / Олег Георгиевич Шишканов [и др.] ; патентообладатель Учреждение Российской академии наук Институт вычислительного моделирования Сибирского отделения Российской академии наук (ИВМ СО РАН) ; Опубл. 15.06.2011 ; МПК 2460939. - [Б. м. : б. и.], 2012
Перевод заглавия: OPERATING METHOD OF TANGENTIAL FURNACE
   Перевод заглавия: OPERATING METHOD OF TANGENTIAL FURNACE
Аннотация: <p num="36">Изобретение относится к теплоэнергетике и может быть использовано в топках паровых котлов при сжигании шлакующих углей. Способ работы тангенциальной топки с угловым многоярусным блочным расположением горелок, ориентированных по касательной к условной окружности, путем подачи в последние равного расхода топливно-воздушной смеси и газов рециркуляции при отключении блока горелок, расходы топливно-воздушной смеси и газов рециркуляции, подаваемых в блоки горелок, устанавливают в соответствии с зависимостями:</p> <p num="37">B_i=(0,4684-0,045i)B, i=2, 3, 4;</p> <p num="38">r_i=(0,0267i³-0,250i²+0,8033i-0,5507)r, i=1, 2, 3, 4,</p> <p num="39">где</p> <p num="40">i - номер горелочного блока, начиная счет с отключенного (для которого принимается B₁=0) по ходу движения газов;</p> <p num="41">В_i - расход топливно-воздушной смеси, подаваемой в i-й горелочный блок;</p> <p num="42">r_i - расход газов рециркуляции, подаваемых в i-й горелочный блок;</p> <p num="43">В - общий расход топливно-воздушной смеси, подаваемой в топку;</p> <p num="44">r - общий расход газов рециркуляции, подаваемых в топку. Изобретение позволяет повысить качество сжигания топлива и эксплуатационную надежность путем устранения температурной неравномерности в зоне активного горения и предотвращения шлакования экранных поверхностей нагрева при отключении блока горелок. 2 ил.<img src="/get_item_image.asp?id=37497630&img=00000001.TIF" class="img_big"></p>
<p num="45">FIELD: power industry.</p> <p num="46">SUBSTANCE: method of tangential furnace with angular multi-tier modular location of burners oriented at a tangent to conditional circle by supplying to the above burners the equal flow of fuel-air mixture and recirculation gases; at cut-out of burner assembly the flows of fuel-air mixture and recirculation gases, which are supplied to burner assemblies, are specified in compliance with the following relationships: B_i=(0.4684-0.045i)B, i=2, 3, 4; r_i=0.0267i³-0.250i²+0.8033i-0.5507)r, i=1, 2, 3,4, where i - burner assembly number starting from the one that is cut-out (for which B₁=0) in gas flow direction; B_i - fuel-air mixture flow supplied to i burner assembly; r_i; - recirculation gas flow supplied to i burner assembly; B - total fuel-air mixture flow supplied to the furnace; r - recirculation gas flow supplied to the furnace.</p> <p num="47">EFFECT: invention allows improving fuel combustion quality and operating reliability by eliminating the temperature unevenness in active combustion zone and by preventing the slagging of water wall heating surfaces at cut-out of burner assembly.</p> <p num="48">2 dwg </p>

РИНЦ

Держатели документа:
Учреждение Российской академии наук Институт вычислительного моделирования Сибирского отделения Российской академии наук (ИВМ СО РАН)

Доп.точки доступа:
Шишканов, Олег Георгиевич; Shishkanov Oleg Georgievich; Каменщиков, Леонид Петрович; Kamenshchikov Leonid Petrovich; Андруняк, Ирина Васильевна; Andrunjak Irina Vasil'evna; Зырянов, Игорь Васильевич; Zyrjanov Igor' Vasil'evich; Учреждение Российской академии наук Институт вычислительного моделирования Сибирского отделения Российской академии наук (ИВМ СО РАН)
Свободных экз. нет