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Your search keyword '"Nazarov, Shakhzod"' showing total 2 results
Start Over Author "Nazarov, Shakhzod" Publication Year Range Last 3 years
2 results on '"Nazarov, Shakhzod"'

1. Studies of the influence of vegetation cover on the process of transfer and diffusion of harmful substances in the atmosphere

Author

Shafiev Tursun and Nazarov Shakhzod

Subjects
Environmental sciences, GE1-350
Abstract

A mathematical model is proposed to monitor and predict the concentration of harmful substances emitted from natural and anthropogenic sources of pollution; it can be used to estimate the capture of aerosol particles in the atmosphere by vegetation elements. The developed mathematical model makes it possible to more accurately predict the degree of environmental pollution and develop measures to reduce it. Using this model and the corresponding numerical algorithm for solving problems, computational experiments were conducted with real weather and climate factors obtained from online services. From the computational experiments conducted, the main parameters were determined; one of them is the influence of vegetation elements on the process of diffusion and transport of aerosol particles in the atmosphere, which plays a significant role in the process under consideration. To check the reliability of the proposed mathematical apparatus, computational experiments were performed and the results were compared with the results obtained by other researchers.

Published
2023
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2. Development of a mathematical model of aerosol particles' distribution process in the surface layer of the atmosphere taking into account the earth's heterogeneous surface.

Author

Ravshanov, Normakhmad, Nazarov, Shakhzod, Nazarov, Erkin, and Boborakhimov, Bakhtiyor

Subjects
*SURFACE of the earth, *MATHEMATICAL models, *AEROSOLS, *WIND speed, *NUMERICAL calculations, *APPROXIMATION algorithms
Abstract

In this paper, a mathematical model, a numerical algorithm for the process of transfer and diffusion of harmful substances, is developed, which takes into account the wind speed in three directions and the rate of deposition of aerosol particles on the underlying surface, as well as the capture of particles by vegetation elements, which play a significant role in the dynamics of the object of study. In order to integrate the task, an implicit finite-difference scheme and an algorithm with the second order of approximation in terms of time and space variables were developed with the help of which numerical calculations can be carried out on a computer system, on the basis of which it is possible to investigate and predict the ecological state of the industrial region under consideration. To investigate the adequacy of the developed mathematical apparatus, computational experiments were carried out on a computer, the results of which were compared with full-scale data of a real production facility located in the Tashkent region of Uzbekistan. [ABSTRACT FROM AUTHOR]

Published
2024
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