Most cited papers (RSCI)

111. Moskalev P.V.
     The structure of site percolation models on three-dimensional square lattices
     Computer Research and Modeling, 2013, v. 5, no. 4, pp. 607-622

     In this paper we consider the structure of site percolation models on three-dimensional square lattices with various shapes of (1,π)-neighborhood. For these models, are proposed iso- and anisotropic modifications of the invasion percolation algorithm with (1,0)- and (1,π)-neighborhoods. All the above algorithms are special cases of the anisotropic invasion percolation algorithm on the n-dimensional lattice with a (1,π)-neighborhood. This algorithm is the basis for the package SPSL, released under GNU GPL-3 using the free programming language R.

     Keywords: site percolation, n-dimensional square lattice, non-metric Minkowski distance, R programming language, SPSL package.
     Views (last year): 8. Citations: 5 (RSCI).
112. Abdullatypov A.V., Tsygankov A.A.
     Homology modeling of the spatial structure of HydSL hydrogenase from purple sulphur bacterium Thiocapsa roseopersicina BBS
     Computer Research and Modeling, 2013, v. 5, no. 4, pp. 737-747

     The results of homology modeling of HydSL, a NiFe-hydrogenase from purple sulphur bacterium Thiocapsa roseopersicina BBS are presented in this work. It is shown that the models have larger confidence level than earlier published ones; a full-size model of HydSL hydrogenase is presented for the first time. The C-end fragment of the enzyme is shown to have random orientation in relation to the main protein globule. The obtain models have a large number of ion pairs, as well as thermostable HydSL hydrogenase from Allochromatium vinosum, in contrast to thermolabile HydAB hydrogenase from Desulfovibrio vulgaris.

     Keywords: homology modeling, hydrogenases, Thiocapsa roseopersicina.
     Views (last year): 2. Citations: 5 (RSCI).
113. Krivovichev G.V.
     Modification of the lattice Boltzmann method for the computations of viscid incompressible fluid flows
     Computer Research and Modeling, 2014, v. 6, no. 3, pp. 365-381

     Modification of the lattice Boltzmann method for computation of viscous incompressible fluid flows is proposed. The method is based on the splitting of differential operator in Navier–Stokes equation and on the idea of instantaneous Maxwellisation of distribution function. The method is based on explicit schemes and didn’t have any problems with parallelization of computations. The stability of the method is demonstrated using von Neumann method in a wide range of input parameter values. The efficiency of the method proposed is demonstrated on the solution of the problem of 2D lid-driven cavity flow.

     Keywords: lattice Boltzmann method, splitting method.
     Citations: 5 (RSCI).
114. Martyushev S.G., Sheremet M.A.
     Numerical analysis of convective-radiative heat transfer in an air enclosure with a local heat source
     Computer Research and Modeling, 2014, v. 6, no. 3, pp. 383-396

     Mathematical simulation of natural convection and surface radiation in a square air enclosure having isothermal vertical walls with a local heat source of constant temperature has been carried out. Mathematical model has been formulated on the basis of the dimensionless variables such as stream function, vorticity and temperature by using the Boussinesq approximation and diathermancy of air. Distributions of streamlines and isotherms reflecting an effect of Rayleigh number $ 10^3 \leqslant Ra \leqslant 10^6 $, surface emissivity $0 \leqslant ε < 1$, ratio between the length of heat source and the size of enclosure $0.2 \leqslant l/L \leqslant 0.6$ and dimensionless time $0 \leqslant τ \leqslant 100$ on fluid flow and heat transfer have been obtained. Correlations for the average heat transfer coefficient in dependence on $Ra$, $ε$ and $l/L$ have been ascertained.

     Keywords: natural convection, surface radiation, local heat source of constant temperature, enclosure, mathematical simulation.
     Views (last year): 1. Citations: 5 (RSCI).
115. Moskalev P.V.
     Estimates of threshold and strength of percolation clusters on square lattices with (1,π)-neighborhood
     Computer Research and Modeling, 2014, v. 6, no. 3, pp. 405-414

     In this paper we consider statistical estimates of threshold and strength of percolation clusters on square lattices. The percolation threshold p_c and the strength of percolation clusters P_∞ for a square lattice with (1,π)-neighborhood depends not only on the lattice dimension, but also on the Minkowski exponent d. To estimate the strength of percolation clusters P_∞ proposed a new method of averaging the relative frequencies of the target subset of lattice sites. The implementation of this method is based on the SPSL package, released under GNU GPL-3 using the free programming language R.

     Keywords: site percolation, square lattice, non-metric Minkowski distance, Moore neighborhood, percolation threshold, strength of infinite clusters, R programming language, SPSL package.
     Views (last year): 4. Citations: 5 (RSCI).
116. Ougolnitsky G.A., Usov A.B., Ryzhkin A.I.
     The motivation method in the Germeyer’s games at modeling three-level control system of the ship’s ballast water
     Computer Research and Modeling, 2014, v. 6, no. 4, pp. 535-542

     The static three-level game-theoretic model of three-level control system of the ship’s water ballast is built. The methods of hierarchical control in view of requirements of keeping the system in the given state are used. A comparison of the results of study of the model in terms of $\Gamma_1$ and $\Gamma_2$ Germeyer’s games is conducted. Numerical calculations for some typical cases are given.

     Keywords: hierarchical control system, water ballast, motivation, Germeyer’s games, imitation.
     Citations: 5 (RSCI).
117. Lopato A.I., Utkin P.S.
     Mathematical modeling of pulsating detonation wave using ENO-schemes of different approximation orders
     Computer Research and Modeling, 2014, v. 6, no. 5, pp. 643-653

     The results of the numerical investigations of pulsating detonation wave propagation using the ENO-schemes with the approximation orders from the first to the fourth inclusively are presented. The results obtained with the use of the schemes of different approximation orders demonstrate that the pattern of detonation wave propagation in acetylene-air mixture corresponds to the analytical estimates both qualitatively and quantitatively. For the hydrogen-air mixture none of the schemes concerned provides the stable detonation wave propagation. The transition from the regular mode to the marginal one with the subsequent detonation breakup is observed.

     Keywords: pulsating detonation wave, ENO-schemes, Runge–Kutta schemes.
     Views (last year): 4. Citations: 5 (RSCI).
118. Vlasenko V.D., Verhoturov A.D.
     Numerical research elastic and strength characteristics of materials with coverings, received by an electrospark alloying
     Computer Research and Modeling, 2014, v. 6, no. 5, pp. 671-678

     In the work is numerically investigated the influence of elastic and strength characteristics of hard materials with coatings of refractory compounds, received electric-spark doping, at influence of temperature and power factors using the finite element method.

     Keywords: model, stress state, material, coating, elastic and strength characteristics, method of final elements.
     Views (last year): 3. Citations: 5 (RSCI).
119. Pechenyuk A.V.
     Benchmarking of CEA FlowVision in ship flow simulation
     Computer Research and Modeling, 2014, v. 6, no. 6, pp. 889-899

     In the field of naval architecture the most competent recommendations in verification and validation of the numerical methods were developed within an international workshop on the numerical prediction of ship viscous flow which is held every five years in Gothenburg (Sweden) and Tokyo (Japan) alternately. In the workshop “Gothenburg–2000” three modern hull forms with reliable experimental data were introduced as test cases. The most general case among them is a containership KCS, a ship of moderate specific speed and fullness. The paper focuses on a numerical research of KCS hull flow, which was made according to the formal procedures of the workshop with the help of CEA FlowVision. Findings were compared with experimental data and computational data of other key CEA.

     Keywords: numerical towing test, verification of numerical methods.
     Views (last year): 1. Citations: 5 (RSCI).
120. Abgaryan K.K., Zhuravlev A.A., Zagordan N.L., Reviznikov D.L.
     Discrete-element simulation of a spherical projectile penetration into a massive obstacle
     Computer Research and Modeling, 2015, v. 7, no. 1, pp. 71-79

     А discrete element model is applied to the problem of a spherical projectile penetration into a massive obstacle. According to the model both indenter and obstacle are described by a set of densely packed particles. To model the interaction between the particles the two-parameter Lennard–Jones potential is used. Computer implementation of the model has been carried out using parallelism on GPUs, which resulted in high spatial — temporal resolution. Based on the comparison of the results of numerical simulation with experimental data the binding energy has been identified as a function of the dynamic hardness of materials. It is shown that the use of this approach allows to accurately describe the penetration process in the range of projectile velocities 500–2500 m/c.

     Keywords: high velocity impact, discrete-element model, binding energy, numerical simulation.
     Views (last year): 5. Citations: 5 (RSCI).

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