Biliaiev N.N., Shynkarenko V.S., Gabrinets V.A., Kalashnikov I.V., Berlov O.V. Modeling of atmosphere pollution and territorial risk assessment at emission of hazardous substances

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Parent Category: Geo-Technical Mechanics, 2018

Category: Geo-Technical Mechanics, 2018, Issue 140

Geoteh. meh. 2018, 140, 158-165

DOI: https://doi.org/10.15407/geotm2018.03.158

MODELING OF ATMOSPHERE POLLUTION AND TERRITORIAL RISK ASSESSMENT AT EMISSION OF HAZARDOUS SUBSTANCES

¹BiliaievN.N., ¹ShynkarenkoV.S., ¹GabrinetsV.A., ²KalashnikovI.V., ³BerlovO.V.

¹Аcademician V.  Lazaryan Dnipropetrovsk National University of Railway Transport, ²State Enterprise «Design and Exploration Institute of Railway Transport of Ukraine «Ukrzaliznychproekt», ³State Higher Education Institutiont «Pridneprovsk State Academy of Civil Engineering and Architecture»

 

UDC519.6:622.41

Language: Russian

Abstract.

Assessment of the territorial risk in case of emergency emission of chemically hazardous substances is a task of particular importance. The reliability of such an assessment largely depends on the level of mathematical models that are used to solve the problem of assessing the territorial risk. Currently, as a rule, analytical models or Gauss models are used to assess territorial risk, which do not allow taking into account some important physical factors. The subject of the research is the development of a method for assessing the territorial risk at emission of a chemical agent by the method of computational experiment. The aim of the work is to create effective numerical models that take into account influence of convection and diffusion of a hazardous substance in the atmosphere on the risk of toxic damage to people in the zone of influence of the source of chemical agent emission. The task of assessing territorial risk is based on numerical integration of the equations for aerodynamics and mass transfer. The two-dimensional potential flow equation is used as the basic equation for calculating the wind flow velocity field. The mass transfer equation takes into account the dispersion of impurities under the action of wind and atmospheric turbulent diffusion. The source of the emission of a pollutant is modeled using the Dirac delta function. The numerical integration of the two-dimensional equation for the velocity potential is carried out using a locally one-dimensional finite-difference splitting scheme. To simulate the spatial dispersion of the impurity, the three-dimensional equation of convective-diffusive transport of the pollutant in atmospheric air is used. The methodology for calculating territorial risk is based on the calculation of the zone of chemical contamination for each probabilistic weather situation. Probabilistic weather situations are determined, either on the basis of a database, or on the basis of a meteorological forecast. An algorithm for solving the problem of assessing territorial risk is considered. The description of the structure of the developed software package is given.

Keywords: air pollution, toxic chemical emissions, risk assessment.

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Abouttheauthors:

Biliaiev Nikolay Nikolaevich, Doctor of Technical Sciences (D.Sc.), Professor, Head of the Department Hydraulics and water supply, Academician V. Lazaryan Dnipropetrovsk National University of Railway Transport, Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Shynkarenko Viktor Ivanovich, Doctor of Technical Sciences (D.Sc.), Professor, Head of the Department Computer Information Technologies, Academician V.  Lazaryan Dnipropetrovsk National University of Railway Transport, Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Gabrinets Volodymyr Alekseevich, Doctor of Technical Sciences (D.Sc.), Professor, Head of the Department Heat engineering, Academician V.  Lazaryan Dnipropetrovsk National University of Railway Transport, Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Kalashnikov Ivan Vladimirovich, Candidate of Technical Sciences (Ph. D), director of State Enterprise «Design and Exploration Institute of Railway Transport of Ukraine «Ukrzaliznichproekt», Kharkov, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Berlov Oleksandr Viktorovych, Candidate of Technical Sciences (Ph. D), Associate Professor of the Department Workplace Safety and Health, State Higher Education Institution «Pridneprovsk State Academy of Civil Engineering and Architecture», Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

 

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