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481. "Modeling of separated flows in CFD software FlowVision-HPC"
Modeling of separated flows in CFD software FlowVision-HPC" . Zhluktov S.V., Aksenov A.A., Kharchenko S.A., Moskalev I.V., Sushko G.B., Shishaeva A.S. A new subgrid turbulence model for near-wall cells is proposed. ... The model includes a smooth profile of tangential velocity, a smooth profile of turbulent viscosity, and a special profile of the dissipation rate of turbulent energy. ... The proposed model is implemented in CFD software FlowVision-HPC and is verified using 2D test cases. ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r128.html -- 3.5 Кб -- 09.09.2010
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482. "Solving of optimization hydrodynamic problems using the distributed computing
Solving of optimization hydrodynamic problems using the distributed computing resources of Moscow University" . Zhumatiy S.A., Sobolev S.I., Stefanov K.S. A software package architecture for solving the optimization problems of aero- and hydrodynamics in distributed computing environments is considered. ... Keywords: hydrodynamics, optimization, distributed computing, X-Com, FlowVision, IOSO . PostScript (in Russian) (713KB) . PDF (in Russian) (165KB) . ... PDF. zip (in Russian) (153KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r207.html -- 3.0 Кб -- 06.09.2010
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483. "Nonlinear wave dispersion in the particle method for incompressible fluid"
Nonlinear wave dispersion in the particle method for incompressible fluid" . Nekrasova T.I., Frank A.M. In the framework of the particle method for incompressible fluid, a dispersion relation for linear surface waves is obtained. ... A comparison with some other numerical methods for free surface flows is performed from the standpoint of accuracy of wave dispersion simulation. Keywords: linear waves, dispersion, particle method . PostScript (in Russian) (11.5MB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r127.html -- 2.8 Кб -- 30.08.2010
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484. "Numerical modeling of axial solutions to some nonlinear problems"
Numerical modeling of axial solutions to some nonlinear problems" . Chizhonkov E.V. A number of "truncated" problems are formulated and numerically studied to model the axial solutions to the nonlinear systems of equations describing the spatial axially symmetric laser-plasma interactions. It is shown that the proposed approach is well-posed and numerically efficient. This work was supported by the Russian Foundation for Basic Research (project N. 09-01-00625a). ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r126.html -- 2.7 Кб -- 24.06.2010
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485. "Derivation of explicit difference schemes for ordinary differential equations
Derivation of explicit difference schemes for ordinary differential equations with the aid of Lagrange-Burmann expansions" . Vorozhtsov E.V. Some explicit multistage Runge-Kutta type methods for solving ordinary differential equations (ODEs) are derived with the aid of the expansion of grid functions in the Lagrange-Burmann series. ... Keywords: ordinary differential equations, Lagrange-Burmann expansion, Runge-Kutta methods, stiff systems . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r124.html -- 3.1 Кб -- 22.06.2010
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486. "A special doping regime in silicon wafer nanocolumns"
A special doping regime in silicon wafer nanocolumns" . Tarnavsky G.A. Computer simulation for the ion implantation of impurities into silicon plate surface nanocolumns is conducted when the ion stream line is parallel to the plate base. Keywords: computer simulation, doping in silicon, implantation, donor and acceptor impurities . PostScript (in Russian) (3.08MB) . PDF (in Russian) (537KB) . PostScript. zip (in Russian) (1.05MB) . PDF. zip (in Russian) (495KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r125.html -- 2.5 Кб -- 22.06.2010
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487. "Design of the application programming interface for a Pilot RESTful grid
Design of the application programming interface for a Pilot RESTful grid service" . Demichev A.P., Ilyin V.A., Kryukov A.P., Shamardin L.V. The design principles of the application programming interface for the RESTful grid services are described. The basic elements of the application programming interface for the Pilot multistage workflow jobs execution service are discussed. Some general approaches to the interface design of such services are analyzed. ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r206.html -- 3.2 Кб -- 22.06.2010
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488. "A parallel algorithm for solving the gravitational physics problems based on
A parallel algorithm for solving the gravitational physics problems based on domain decomposition" . Kuksheva E.A., Snytnikov V.N. A parallel algorithm for solving the unsteady 3D problems of collisionless dynamics in the case of more than 10 9 bodies in a self-consistent gravitational field in Cartesian coordinates is proposed. The algorithm is based on the computational domain decomposition method. ... PostScript (in Russian) (14.9MB) . PDF (in Russian) (768KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r120.html -- 3.0 Кб -- 03.06.2010
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489. "On optimization of computing applications for multiprocessor systems with
On optimization of computing applications for multiprocessor systems with nonuniform memory access" . ... Mirgasimov A.R. An approach to optimize computing applications for multiprocessor systems with nonuniform memory access (the so-called NUMA systems) is considered. This approach allows one to make the most use of system computing resources with minimal changes in application codes and can be applied in hybrid MPI-threaded programs on modern cluster systems. ... PDF (in Russian) (183KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r123.html -- 3.0 Кб -- 03.06.2010
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490. "Specifics of the development of algorithms and programs for computing the main
Specifics of the development of algorithms and programs for computing the main characteristics of integrated-optical waveguides" . Egorov A.A., Stavtsev A.V. Some algorithms and programs for computing the fields of various directed and radiant TE- and TM-modes of symmetrical and asymmetrical integrated-optical waveguides are considered. ... Keywords: waveguide, waveguide modes, dispersion relations, irregularities, waveguide scattering, numerical modeling . PostScript (in Russian) (5.63MB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r122.html -- 3.1 Кб -- 03.06.2010
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491. "An abstract-algebraic approach to the construction of computing environments
An abstract-algebraic approach to the construction of computing environments to solve problems in object formulation" . Suvorov V.V. A method for solving mathematical and applied problems in object-oriented representation is proposed. ... A computing environment is created whose dynamics is controlled by the functional and predicative components of the problem's object content. ... Keywords: abstract-algebraic approach, object formulation, data self-transformation, system-creating principle . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r205.html -- 3.2 Кб -- 20.05.2010
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492. "Application of high performance computing systems to simulate the
Application of high performance computing systems to simulate the Farley-Buneman instability" . Kovalev D.V., Smirnov A.P., Shmelev A.B. The Farley-Buneman instability is observed in the E-region of the Earth's ionosphere at altitudes about 100 km. A mathematical model is used to describe this instability. ... Keywords: ionosphere, plasma modeling, instability in plasma, kinetic equation, high performance computing . PostScript (in Russian) (4.97MB) . PDF (in Russian) (566KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r121.html -- 4.1 Кб -- 19.05.2010
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493. "Mathematical simulation of air jet flow at the entrance of a plane channel
Mathematical simulation of air jet flow at the entrance of a plane channel equipped with a shield and an impermeable screen" . Logachev I.N., Logachev K.I., Averkova O.A. Within the theory of ideal incompressible fluid flow, a separated flow in a slit-like suction channel sticking out of a plane wall and equipped with an impermeable screen is studied. Some characteristics of the separated flow are specified depending on the geometrical parameters of the flow. ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r119.html -- 3.0 Кб -- 17.05.2010
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494. "GRID technologies in computing chemistry"
GRID technologies in computing chemistry" . Volokhov V.M., Varlamov L.A., Pivushkov A.V., Pokatovich G.A., Surkov N.F. The main variants of GRID technology applications in the field of computing chemistry are considered. The main achievements of the authors in usage of similar technologies on the basis of the GRID resource site at the Institute of Problems of Chemical Physics (Russian Academy of Sciences) are discussed. ... PostScript (in Russian) (1.57MB) . PDF (in Russian) (370KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r204.html -- 3.6 Кб -- 08.04.2010
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495. "Solving the Boltzmann equation on GPU"
Solving the Boltzmann equation on GPU" . ... Tcheremissine F.G., Shuvalov P.V. The paper describes an implementation of the conservative projection method for solving the Boltzmann equation on GPU. ... Methods for an optimal implementation of a solver for two-dimensional geometry and methods for setting boundary conditions, implementation of the geometry, and storage of integrating grids are developed. ... Keywords: GPU, CUDA, massively-parallel computation, Boltzmann equation, rarefied gas . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r117.html -- 3.1 Кб -- 08.04.2010
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496. "Accuracy estimation and comparative analysis of difference schemes of
Accuracy estimation and comparative analysis of difference schemes of high-order approximation" . Safronov A.V. An actual order of accuracy for several known numerical methods is studied for the case of hyperbolic-law discontinuous solutions. ... A wide class of difference schemes of first to fifth orders is analyzed. A number of recommendations on the application of higher-order finite difference schemes are given. ... PostScript (in Russian) (3.14MB) . PDF (in Russian) (425KB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r116.html -- 2.9 Кб -- 06.04.2010
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497. "Combined MPI+threads parallel implementation of the block method for
Combined MPI+threads parallel implementation of the block method for heat-transfer simulation in structurally inhomogeneous media" . Volkov-Bogorodsky D.B., Sushko G.B., Kharchenko S.A. Combined MPI+threads parallel algorithms are developed to approximate the solutions of the nonstationary heat conductivity equation with phase transition by the analytical block method. ... Relatively independent computations with block sparse structures are parallelized on distributed memory with the aid of MPI. ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r115.html -- 3.8 Кб -- 05.04.2010
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498. "Modeling of impact processes in a textile armor and in a human body on a
Modeling of impact processes in a textile armor and in a human body on a computational cluster SKIF Ural" . ... Sapozhnikov S.B., Maricheva A.A. A numerical modeling of impact processes in a textile armor and in a human body is considered. A human chest model is proposed using the SolidWorks software package. ... Keywords: textile armor, impact, FEA model, human chest, supercomputer simulation . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r114.html -- 3.1 Кб -- 29.03.2010
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499. "NPB UA benchmark scaling to thousands of Blue Gene/P cores using PGAS-like
NPB UA benchmark scaling to thousands of Blue Gene/P cores using PGAS-like OpenMP extension" . ... The PGAS-like SHMEM library implementation for IBM Blue Gene/P through the DCMF messaging layer is considered. A number of results obtained on up to 4096 cores of the Blue Gene/P system installed at the Moscow State University are analyzed. ... Keywords: NPB UA Benchmark, PGAS paradigm, unstructured adaptive, OpenMP extension, Blue Gene/P, parallel programming . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r203.html -- 3.2 Кб -- 26.03.2010
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500. "Application of parallel algorithms for solving hydrodynamic problems by the
Application of parallel algorithms for solving hydrodynamic problems by the vortex element method" . Marchevsky I.K., Scheglov G.A. A parallel algorithm for the simulation of incompressible 3D flow around bluff bodies using the vortex element method is considered. Traditionally, the parallel algorithms based on this method are applied only to one step of the computation procedure consisting in the vortex influence computation, similar to the N-body problem. ... PDF (in Russian) (2.11MB) . ...
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Ссылки http://num-meth.srcc.msu.ru/english/zhurnal/tom_2010/v11r112.html -- 3.4 Кб -- 25.03.2010
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