Large eddy simulation of turbulent flow and of pollutant transport in a street canyon

The work presents a non-steady three-dimensional eddy resolving model intended for the simulation of non-isothermal turbulent separation flows in street canyons. For a subgrid-scale turbulence parameterization, the Smagorinsky gradient model is used. The calculation results demonstrate the effects of pollutant source location, street canyon size, basic stream rate and wall temperature difference on air pollution in the canyon. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only

THE IMPROVING OF THE QUALITY OF THE EDUCATION OF STUDENTS OF PEDAGOGICAL SPECIALITIES OF SECONDARY PROFESSIONAL EDUCATION IN THE CONDITIONS OF DIDACTIC SYNTHESIS OF THEORETICAL AND PRACTICAL TRAINING

В статье рассматривается инновационная модель повышения качества образования в СПО будущих педагогических работников в условиях дидактического синтеза теоретической и практической подготовкиThe article deals with an innovative model of improving the quality of education in secondary professional education of the future teaching staff in the conditions of didactic synthesis of theoretical and practical trainin

The ideas of development of continuous pedagogical education in the college in terms of practice-based training

The article is devoted to the ideas of development of continuous pedagogical education in the college in the conditions of practice based training. The guidelines of modernization of pedagogical education in terms of theoretical and practical communication between teachers and educators for schools and preschool educational institutions are determinedСтатья посвящена идеям развития непрерывного педагогического образования в колледже при организации практико-ориентированного обучения. Определяются ориентиры модернизации педагогического образования в условиях связи теоретической и практической подготовке учителей и воспитателе

Using weather prediction data for simulation of mesoscale atmospheric processes

The paper presents an approach to specify initial and boundary conditions from the output data of global model SLAV for mesoscale modelling of atmospheric processes in areas not covered by meteorological observations. From the data and the model equations for a homogeneous atmospheric boundary layer the meteorological and turbulent characteristics of the atmospheric boundary layer are calculated. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only

Global meteorological forecast data and instrumental measurement application for simulation of mesoscale atmospheric boundary layer processes

The accuracy of the results of numerical modeling of local atmospheric processes, in particular those in the ground layer, to a great extend depends on the input data characterizing the initial state of meteorological parameters within the area of research or their variation at the boundary. The paper considers a mesoscale model of atmospheric ground layer where medium-range weather prediction data calculated with the help of the global SL-AV model of the Hydrometcenter of the RF are applied as the initial and boundary conditions. Besides, the results of measurements carried out in the Institute of Monitoring of Climatic and Ecological Systems, SB RAS (IMCES) with the help of meteorological stations and temperature profiler are used for quality improvement

The supernova-regulated ISM. II. The mean magnetic field

The origin and structure of the magnetic fields in the interstellar medium of spiral galaxies is investigated with 3D, non-ideal, compressible MHD simulations, including stratification in the galactic gravity field, differential rotation and radiative cooling. A rectangular domain, 1x1x2 kpc^{3} in size, spans both sides of the galactic mid-plane. Supernova explosions drive transonic turbulence. A seed magnetic field grows exponentially to reach a statistically steady state within 1.6 Gyr. Following Germano (1992) we use volume averaging with a Gaussian kernel to separate magnetic field into a mean field and fluctuations. Such averaging does not satisfy all Reynolds rules, yet allows a formulation of mean-field theory. The mean field thus obtained varies in both space and time. Growth rates differ for the mean-field and fluctuating field and there is clear scale separation between the two elements, whose integral scales are about 0.7 kpc and 0.3 kpc, respectively.Comment: 5 pages, 10 figures, submitted to Monthly Notices Letter

Influence of the pollution source location on the concentration of the impurity in street canyon

The work is devoted to the study of the flow structure and the nature of the impurities distribution in a street canyon, depending on the location of a constant intensity pollution source. The paper considers three cases when the source of the impurity is located: in the center at the bottom of the street canyon, at the bottom under leeward wall and at the bottom under windward wall

Исследование углекислого газа и метана в глобальном и региональном (Сибирь) масштабах: обзор

Статья на рус. яз. с.

Software Products for the Numeric Evaluation of Oscillation of Nox in the Pulverized Fuel Combustor

In this paper, a numerical study of the formation of nitrogen oxides in the combustion chamber based on the model created by Mitchellom and Terbellom. The distribution of furnace temperature and the concentration of nitrogen oxides, as well as a comparison of numerical results with the data of field experiment

Vapnik-Chervonenkis density in some theories without the independence property, I

We recast the problem of calculating Vapnik-Chervonenkis (VC) density into one of counting types, and thereby calculate bounds (often optimal) on the VC density for some weakly o-minimal, weakly quasi-o-minimal, and $P$-minimal theories.Comment: 59