Full Article: PDF
Scientific Object Identifier: http://s-o-i.org/1.1/TAS-04-48-30
DOI: https://dx.doi.org/10.15863/TAS.2017.04.48.30
Language: English
Citation: Ravshanov N, Muradov F (2017) MODELS AND NUMERICAL ALGORITHMS OF ACTIVE TRANSPORT AND DIFFUSION OF FINE PARTICLES IN THE ATMOSPHERE. ISJ Theoretical & Applied Science, 04 (48): 189-197. Soi: http://s-o-i.org/1.1/TAS-04-48-30 Doi: https://dx.doi.org/10.15863/TAS.2017.04.48.30 |
Pages: 189-197
Published: 30.04.2017
Abstract: In the article importance of the solving the problem of monitoring and forecasting of the ecological status of industrial regions is observed, where has an imbalance of sanitary environmental regulations due to the large number of emissions of harmful active fine aerosol particles and carbon dioxide gases into the atmosphere. A mathematical model of the spread of pollutants released into the environment from production facilities is displayed, which describes the system of differential equations in partial derivatives with appropriate initial and boundary conditions. The main parameters that play a significant role in the transport and diffusion of pollutants in the atmosphere: the wind speed and direction; terrain; absorption coefficient harmful aerosol of fine particles in the atmosphere, etc is defined. We obtain the differential equation for calculating the rate of deposition of fine particulate and propagating in the boundary layer of the atmosphere, when the principal parameters affecting the rate of particle deposition the mass and radius of the aerosol particle density of the atmosphere, air resistance force are considered. Efficient numerical algorithm is proposed for the numerical solution of the problem, based on the "direct method". The algorithm allows to reduce a multidimensional problem described by differential equations in partial derivatives to the integration of ordinary differential equations.
Key words: mathematical model, transfer and diffusion of pollutants, climatic factor, fluid mechanics, numerical algorithm.
|
