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* Scientific Article * Impact Factor 6.630 |
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Karshiev, D. A., Muradov, F. A., & Makhramova, D. A.
Mathematical model and computing experiment for monitoring and predicting the environmental state of the border layer of the atmosphere. |
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Full Article: PDF
Scientific Object Identifier: http://s-o-i.org/1.1/TAS-03-107-13
DOI: https://dx.doi.org/10.15863/TAS.2022.03.107.13
Language: English
Citation: Karshiev, D. A., Muradov, F. A., & Makhramova, D. A. (2022). Mathematical model and computing experiment for monitoring and predicting the environmental state of the border layer of the atmosphere. ISJ Theoretical & Applied Science, 03 (107), 261-280. Soi: http://s-o-i.org/1.1/TAS-03-107-13 Doi: https://dx.doi.org/10.15863/TAS.2022.03.107.13 |
Pages: 261-280
Published: 30.03.2022
Abstract: In this article the current problem of the monitoring and forecasting of the ecological state of the air basin of industrial regions related to the solution, where a violation of the valance of the sanitary norm of the environment due to a large number of emissions of harmful substances will be considered. In this work to solve the above problem a mathematical model and its software describing the process under consideration with the help of hydro mechanical equations with the corresponding initial and boundary conditions for carrying out a complex study of the process of transport and diffusion of pollutants released into the environment from production facilities and the results of numerical calculations on a computer. To derive the mathematical model of the object, the basic laws of mechanics and hydro thermodynamics (equations of mass conservation and balance of forces) were used, taking into account the main parameters that play an important role in the process of aerosol particles in the atmosphere: wind speed and direction; terrain relief; absorption coefficient of harmful aerosol fine particles in the atmosphere, physical and mechanical properties of particles, etc. The differential equation for calculating the deposition rate of fine-dispersed and aerosol particles propagating in the near-boundary layer of the atmosphere is obtained. This article is devoted to numerical modeling of the vibration of rods in the static formulation of the problem. The results are presented in tabular and graphical form. The problems considered are solved with different values of the grid pitch and these results are given in the table. Numerical analysis of the results obtained.
Key words: mathematical model, numerical algorithm, approximation, transfer and diffusion, atmosphere, harmful aerosols, rate of particles deposition.
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