The possibilities of using the graphic editor AutoCAD in the formation of the readiness of graduates of a technical university for graphic activity are considered. Examples of solving educational problems in the main sections of the discipline "Engineering and Computer Graphics" are given: projection, mechanical engineering and construction drawing.

Keywords: diversification of management, production diversification, financial and economic purposes of a diversification, technological purposes of ensuring flexibility of production

The work contains the construction and software implementation of related software systems designed for mathematical modeling of processes occurring in coastal water systems. The space-two-dimensional model of sediment transport in shallow waters allows to forecast the dynamics of bottom topography changes by reason of the movement of water and solid particles, to take into account the porosity of the soil, the critical shear stress at which begins the movement of sediment, turbulent exchange, dynamically changing geometry of the bottom, wind currents and friction on the bottom. The mathematical model of motion of a multicomponent air, takes into account factors such as the transport of pollutants and heat; the effect of vegetation; change in the coefficient of turbulent exchange; water transfer from the liquid to the gaseous state and others.

Keywords: multiprocessor computer system, grid equations, suspended solids, sediment

The mathematical model of laser radiation  thermal influence on biological structures is presented in this article.The optical and thermal parameters anisotropy of biological structures is considered in model. The surface cooling processes are described also with the convection and radiation. The software on the basis of numerical methods and the received model is developed. The  simulation results of influence of two types of lasers (erbium (λ = 2,94 microns) and CO2 (λ= 10,6 microns) ) on the biological structure are given. This structure consists of enamel and a dentine.

Keywords: laser biotechnologies, numerical simulation, temperature field

The process of constructing a mathematical model of basin water bodies. Using the raw data, a mathematical model of the basin of Lake Onega. This model can be used for modeling thermal and hydrodynamic processes.

Keywords: parallelization of computations, thermohydrodynamics modeling of water objects, multi-core processors

The work is devoted to modeling sediment transport in shallow waters. Results of mathematical and numerical modeling can be applied in practice to justify the design and construction of hydraulic structures to predict the formation of the bottom topography (eg predicting sediment transport), to address issues related to the protection of the recorded ports and channels, weather impacts to the design, to determine the optimal routes maritime access channels, etc.

Keywords: mathematical modeling, hydrodynamics, transport of substances, the Navier-Stokes equation of diffusion-convection-reaction

The article provides the analysis of the operational cost of the systems of heating of a building with the use of низкопотенциальных sources of heat. Analyzed fuel economy with consideration of the operation of the heat pump and save operating costs.

 

Keywords: heat pumps, heat mine waters, the saving of operating costs

A modified analog-SSOR of variation type is used for numerical realization of two-dimensional discrete mathematical model of the aquatic environment, which is based on a three-dimensional hydrostatic model. Governing equations of the given model are equations for incompressible fluid, hydrostatic equation and Navier-Stokes equation. Developed model is used to predict the processes of sedimentation and the impact of negative factors affecting the condition of coastal and offshore structures. An algorithm for the minimal residuals modified analog-SSOR method for solving the difference equations is presented in the paper. The results of numerical experiments are presented.

Keywords: Iterative methods, hydrodynamics, discrete model, grid education, Navier-Stokes equation.