Труды сотрудников ИВМ СО РАН

/ N. N. Lukzen [et al.] // Dokl. Phys. Chem. - 2013. - Vol. 449. - P44-47, DOI 10.1134/S0012501613030056. - Cited References: 15. - This work was supported by the Russian Foundation for Basic Research (project nos. 11-03-00356 and 11-03-00296), the Siberian Branch of the RAS (interdisciplinary project no. 71), the Division of Chemistry and Materials Science, RAS (project no. 5.1.1), and program P-220 of the Government of the Russian Federation (grant no. 11.G34.31.0045). . - 4. - ISSN 0012-5016РУБ Chemistry, Physical


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Доп.точки доступа:
Lukzen, N.N.; Ivanov, K.L.; Sadovsky, V.M.; Садовский, Владимир Михайлович; Kaptein, R.; Sagdeev, R.Z.

[Text] / S. V. Kozlova, I. I. Ryzhkov // Eur. Phys. J. E. - 2014. - Vol. 37, Is. 9. - Ст. 87, DOI 10.1140/epje/i2014-14087-0. - Cited References: 44. - The authors are grateful to Dr. A. V. Minakov for assistance in ANSYS Fluent numerical calculations. This work is supported the Krasnoyarsk Regional Foundation of Scientific and Technical Activity (Grant 02/13). . - ISSN 1292-8941. - ISSN 1292-895XРУБ Chemistry, Physical + Materials Science, Multidisciplinary + Physics, Applied + Polymer Science

Аннотация: In this paper, laminar convective heat transfer of water-alumina nanofluid in a circular tube with uniform heat flux at the tube wall is investigated. The investigation is performed numerically on the basis of two-component model, which takes into account nanoparticle transport by diffusion and thermophoresis. Two thermal regimes at the tube wall, heating and cooling, are considered and the influence of nanoparticle migration on the heat transfer is analyzed comparatively. The intensity of thermophoresis is characterized by a new empirical model for thermophoretic mobility. It is shown that the nanoparticle volume fraction decreases (increases) in the boundary layer near the wall under heating (cooling) due to thermophoresis. The corresponding variations of nanofluid properties and flow characteristics are presented and discussed. The intensity of heat transfer for the model with thermophoresis in comparison to the model without thermophoresis is studied by plotting the dependence of the heat transfer coefficient on the Peclet number. The effectiveness of water-alumina nanofluid is analyzed by plotting the average heat transfer coefficient against the required pumping power. The analysis of the results reveals that the water-alumina nanofluid shows better performance in the heating regime than in the cooling regime due to thermophoretic effect.

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Держатели документа:
[Kozlova, Sofya V.
Ryzhkov, Ilya I.] Inst Computat Modelling SB RAS, Krasnoyarsk 660036, Russia
ИВМ СО РАН

Доп.точки доступа:
Kozlova, S.V.; Ryzhkov, I.I.; Рыжков, Илья Игоревич; Krasnoyarsk Regional Foundation of Scientific and Technical Activity [02/13]

[Text] / M. Sadovsky, M. Senashova // Bull. Math. Biol. - 2016. - Vol. 78, Is. 4. - P736-753, DOI 10.1007/s11538-016-0159-z. - Cited References:58 . - ISSN 0092-8240. - ISSN 1522-9602РУБ Biology + Mathematical & Computational Biology

Аннотация: We consider the model of spatially distributed community consisting of two species with "predator-prey" interaction; each of the species occupies two stations. Transfer of individuals between the stations (migration) is not random, and migration stipulates the maximization of net reproduction of each species. The spatial distribution pattern is provided by discrete stations, and the dynamics runs in discrete time. For each time moment, firstly a redistribution of individuals between the stations is carried out to maximize the net reproduction, and then the reproduction takes place, with the upgraded abundances. Besides, three versions of the basic model are implemented where each species implements reflexive behaviour strategy to determine the optimal migration flow. It was found that reflexivity gives an advantage to the species realizing such strategy, for some specific sets of parameters. Nevertheless, the regular scanning of the parameters area shows that non-reflexive behaviour yields an advantage in the great majority of parameters combinations.

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Держатели документа:
Inst Computat Modelling SB RAS, Krasnoyarsk, Russia.

Доп.точки доступа:
Sadovsky, Michael; Senashova, Mariya

/ I. L. Isaev, A. P. Gavriliuk // J. Phys. B-At. Mol. Opt. Phys. - 2018. - Vol. 51, Is. 2. - Ст. 025701, DOI 10.1088/1361-6455/aa9b98. - Cited References:26 . - ISSN 0953-4075. - ISSN 1361-6455РУБ Optics + Physics, Atomic, Molecular & Chemical

Аннотация: The method of molecular dynamics is used to study the behavior of an ultracold non-ideal ion-electron Be+ plasma in a uniform magnetic field. Our simulations yield an estimate for the rate of electron-ion collisions which is non-monotonically dependent on the magnetic field magnitude. Also they explicitly show that there are two types of diffusion: a classical one, corresponding to Brownian motion of particles, and Bohm diffusion when the trajectory of particles (guiding centers) includes substantial lengths of drift motion.

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Держатели документа:
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660028, Russia.

Доп.точки доступа:
Isaev, I. L.; Gavriliuk, A. P.