Prof.
Alexander Belostotsky
(Scientific Research Center “StaDyO”)
03/07/2017, 13:30
The following contemporary problems of mathematical modelling of unique structures, buildings and complexes are under consideration: modeling of interaction of buildings and structures with a foundation with allowance for real properties, stage-by-stage construction and actual operation history; structural analysis with allowance for physical, geometrical and other nonlinearities; structural...
Mrs
I. Afanasyeva
(Joint-Stock Company “Scientific-Research Centre “StaDyO”, Moscow, Russia)
03/07/2017, 14:00
Aerohydrodynamics and aerohydroelasticity problems (also known as Fluid-Structure Interaction (FSI) problems) cause big and uninterrupted interest in science, industry, biomedicine and other applications. Preconditions for a detailed study of the nature of aerohydrodelasticity and the search for methods that let to predict consequences of strong wind impact and solve coupled problems related...
Mr
Oleg Negrozov
(National Research Moscow State University of Civil Engineering), Prof.
Pavel Akimov
(Scientific Research Center “StaDyO”)
03/07/2017, 14:15
Development, research and verification of correct mathematical models and methods of structural mechanics are the most important aspects of ensuring safety of structures and buildings. Finite element method (FEM) is the most popular method of structural analysis. The field of application of discrete-continual finite element method (DCFEM) comprises structures with regular (in particular,...
Prof.
Marina Mozgaleva
(National Research Moscow State University of Civil Engineering), Prof.
Pavel Akimov
(Scientific Research Center “StaDyO”)
03/07/2017, 14:30
Numerical or semianalytical solution of problems of structural mechanics with immense number of unknowns is time-consuming process. High-accuracy solution at all points of the model is not required normally, it is necessary to find only the most accurate solution in some pre-known domains. The choice of these domains is a priori data with respect to the structure being modeled. Designers...
Dr
A Aksenov
(TESIS Ltd, Moscow, Russia)
03/07/2017, 14:45
FlowVision software is designed for automation of engineering calculations in industrial computational fluid dynamics (CFD). It has a capability to solve complex non-tradition problems involving different physical processes. The paradigm of complete automation of labor-intensive and time-taking processes like grid generation makes FlowVision attractive for many engineers. FlowVision includes...
Mr
Nikolay Taran
(Moscow Aviation Institute)
03/07/2017, 15:30
The beams are typical elements of complex mechanical systems. Vibrations of beams are modeled by initial boundary problems for the forth order partial differential equation, where initial conditions are considered as non-desirable perturbations and right parts of the equation as a control function. In this report we investigate the possibility of numerical damping non-desirable vibrations for...
Dr
Igor Bakholdin
(Keldysh Institute for Applied Mathematics)
03/07/2017, 15:45
Different models of tube with hyper elastic walls are investigated. They are tube with controlled pressure, tube filled by incompressible fluid, tube filled by compressible gas. Complete membrane model and non-linear hyper elastic model are used for walls of tube. Linear model of plate is used in order to take bending resistance of walls into account. Equations are solved numerically. Walls...
Dr
Marina Trapeznikova
(Keldysh Institute of Applied Mathematics RAS)
03/07/2017, 16:00
Development of mathematical fundamentals and software for simulation of complex fluid flows in the subsurface is one of urgent tendencies of industrial mathematics. Among applications of such flow modeling there are oil-and-gas industry problems, in particular, the development of perspective hydrocarbon recovery technologies, as well as ecological problems concerning the soil and groundwater...
Ms
Antonina Chechina
(Keldysh Institute of Applied Mathematics RAS)
03/07/2017, 16:15
The paper deals with mathematical modelling of traffic flows on urban road networks. The presented model relates to microscopic approach, i. e. each car is considered separately and is described by its own set of parameters.
The model is based on cellular automata theory and presents generalization of Nagel-Schreckenberg model [1] to a multilane case [2]. The computational domain is a 2D...
Prof.
Aleksandr Egorov
(A.M. Prokhorov General Physics Institute, Russian Academy of Sciences)
03/07/2017, 16:30
Two-dimensional model of Fredericks effect was used for the investigation of the static electric field influence on nematic liquid crystal director orientation in the side–electrode cell. The solutions were obtained by finite-difference methods. The programs for numerical solution of two-dimensional parabolic partial differential equation were developed by using both FORTRAN and C++....
Mrs
Yulia Pazyuk
(JIHT RAS)
03/07/2017, 16:45
An oscillatory flow regime of the formation fluid is sometimes observed at the operating gas-condensate reservoirs which entails unbalance of the well operation and leads to unstable work of the well. Both external impact of periodic factors and monotonous energy inflows into the system could be the reasons for observed pulsations. The system converts the incoming energy into vibrations due to...
