International Journal of Atmospheric and Oceanic Sciences

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Solution to the Problem of Gas Impurities Distribution in the Surface Layer of the Atmosphere with Stationary Modeling Methods Applied

Received: 7 December 2021    Accepted: 30 December 2021    Published: 9 April 2022
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Abstract

The greatest threat of the hazardous chemical release is posed by a cloud of contaminated air that spreads under the influence of wind near the soil surface. There is a problem of predicting the contaminated zone parameters in order to ensure safety. Normally, various methods are used to calculate the concentration of a hazardous impurity for this purpose. However, the obtained results correlate poorly often with each other and with the available experimental data. The purpose of this work is to assess the applicability of theoretical methods for calculating the parameters of the contamination zone formed as a result of the hazardous substance evaporation from the liquid strait surface. Several methods are used in this work: field tests, calculations using Gaussian distribution, solving a two-dimensional equation of turbulent diffusion with wind speed varying in height, and a computational experiment using the ANSYS software package. Results. The article presents the data of field tests with the spill of liquid chlorine, showing the distribution of impurities with the wind flow in the horizontal and vertical directions. It presents calculation results of the concentration of impurities entering the atmosphere from the surface of a liquid strait under conditions close to field tests. The applicability of the methods used to calculate the parameters of the contaminated zone are assessed taking into account the data of field tests. The correlation between the experimental and calculated data have been established to be observed in the range of specific concentrations only. The spectrum of high concentrations is better described by solving the two-dimensional equation of turbulent diffusion. The spectrum of average concentration values – by Gaussian distribution and computational experiment using the ANSYS software package. Conclusion. Understanding the specifics of computational methods application allows to predict the distribution of impurities in the surface air layer more accurately, taking into account the intensity of the emission, wind speed and surface roughness.

DOI 10.11648/j.ijaos.20220601.12
Published in International Journal of Atmospheric and Oceanic Sciences (Volume 6, Issue 1, June 2022)
Page(s) 7-12
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Emergency, Chlorine, Spill, Dispersion of Impurities

References
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[2] Galeev, A. D., Starovoitova, E. V., Ponikarov, S. I. 2013. Chislennoe modelirovanie formirovaniya toksichnogo oblaka pri zalpovom vybrose szhizhennogo hlora v atmosferu. Engineering and Physics J. 86 (1): 203–212.
[3] Agapov, A. A. 2018. Baza dannyh naturnyh eksperimentov dlya verifikacii matematicheskih modelej rasseyaniya oblakov «tyazhelogo» gaza. Bezopasnost' truda v promyshlennosti. 6: 35–44.
[4] Polanczyk, A. 2018. 3D simulation of chlorine dispersion in Rrural area. Rocznik Ochrona Srodowiska. 20: 1035–1048.
[5] Kotov, G. V., Golub, O. V. 2011. Naturnye ispytaniya po opredeleniyu effektivnosti vliyaniya vodyanyh zaves na rasprostranenie hlora v prizemnom sloe vozduha. Chrezvych. situacii: preduprezhdenie i likvidaciya. 1 (29): 23–31.
[6] Kotov, G. V. 2021. The concept of using water curtains for the elimination of emergency situations with the release of hazardous chemicals. J. of Civil Protection. 5 (2): 216–230.
[7] Sriram, G., Krisha Mohan, N., Gopalasamy, V. 2006. Sensitivity study of Gaussian dispersion models. J. of Scientific & Industrial Research. 65 (4): 321–324.
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[9] Monin, A. S., Yaglom, A. M. 1965. Statisticheskaya gidromekhanika. Moscow: Nauka.
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[12] Salamonowicz, Z. 2018. Numerical simulation of dispersion of ammonia in industry space using the ANSYS. Fire and Environmental Safety Engineering. MATEC Web of Conf. 247, 00044.
[13] Kolodkin, V. M. et al. 2001. Kolichestvennaya ocenka riska himicheskih avarij. Izhevsk: Udmurt University.
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[15] Lim, H. 2017. A. study on effective mitigation system for accidental toxic gas releases. J. of Loss Prevention in the Process Industries. 49: 636−644.
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    Gennadiy Kotov, Tatiana Sidorovich, Sergey Fisenko. (2022). Solution to the Problem of Gas Impurities Distribution in the Surface Layer of the Atmosphere with Stationary Modeling Methods Applied. International Journal of Atmospheric and Oceanic Sciences, 6(1), 7-12. https://doi.org/10.11648/j.ijaos.20220601.12

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    ACS Style

    Gennadiy Kotov; Tatiana Sidorovich; Sergey Fisenko. Solution to the Problem of Gas Impurities Distribution in the Surface Layer of the Atmosphere with Stationary Modeling Methods Applied. Int. J. Atmos. Oceanic Sci. 2022, 6(1), 7-12. doi: 10.11648/j.ijaos.20220601.12

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    AMA Style

    Gennadiy Kotov, Tatiana Sidorovich, Sergey Fisenko. Solution to the Problem of Gas Impurities Distribution in the Surface Layer of the Atmosphere with Stationary Modeling Methods Applied. Int J Atmos Oceanic Sci. 2022;6(1):7-12. doi: 10.11648/j.ijaos.20220601.12

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  • @article{10.11648/j.ijaos.20220601.12,
      author = {Gennadiy Kotov and Tatiana Sidorovich and Sergey Fisenko},
      title = {Solution to the Problem of Gas Impurities Distribution in the Surface Layer of the Atmosphere with Stationary Modeling Methods Applied},
      journal = {International Journal of Atmospheric and Oceanic Sciences},
      volume = {6},
      number = {1},
      pages = {7-12},
      doi = {10.11648/j.ijaos.20220601.12},
      url = {https://doi.org/10.11648/j.ijaos.20220601.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijaos.20220601.12},
      abstract = {The greatest threat of the hazardous chemical release is posed by a cloud of contaminated air that spreads under the influence of wind near the soil surface. There is a problem of predicting the contaminated zone parameters in order to ensure safety. Normally, various methods are used to calculate the concentration of a hazardous impurity for this purpose. However, the obtained results correlate poorly often with each other and with the available experimental data. The purpose of this work is to assess the applicability of theoretical methods for calculating the parameters of the contamination zone formed as a result of the hazardous substance evaporation from the liquid strait surface. Several methods are used in this work: field tests, calculations using Gaussian distribution, solving a two-dimensional equation of turbulent diffusion with wind speed varying in height, and a computational experiment using the ANSYS software package. Results. The article presents the data of field tests with the spill of liquid chlorine, showing the distribution of impurities with the wind flow in the horizontal and vertical directions. It presents calculation results of the concentration of impurities entering the atmosphere from the surface of a liquid strait under conditions close to field tests. The applicability of the methods used to calculate the parameters of the contaminated zone are assessed taking into account the data of field tests. The correlation between the experimental and calculated data have been established to be observed in the range of specific concentrations only. The spectrum of high concentrations is better described by solving the two-dimensional equation of turbulent diffusion. The spectrum of average concentration values – by Gaussian distribution and computational experiment using the ANSYS software package. Conclusion. Understanding the specifics of computational methods application allows to predict the distribution of impurities in the surface air layer more accurately, taking into account the intensity of the emission, wind speed and surface roughness.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Solution to the Problem of Gas Impurities Distribution in the Surface Layer of the Atmosphere with Stationary Modeling Methods Applied
    AU  - Gennadiy Kotov
    AU  - Tatiana Sidorovich
    AU  - Sergey Fisenko
    Y1  - 2022/04/09
    PY  - 2022
    N1  - https://doi.org/10.11648/j.ijaos.20220601.12
    DO  - 10.11648/j.ijaos.20220601.12
    T2  - International Journal of Atmospheric and Oceanic Sciences
    JF  - International Journal of Atmospheric and Oceanic Sciences
    JO  - International Journal of Atmospheric and Oceanic Sciences
    SP  - 7
    EP  - 12
    PB  - Science Publishing Group
    SN  - 2640-1150
    UR  - https://doi.org/10.11648/j.ijaos.20220601.12
    AB  - The greatest threat of the hazardous chemical release is posed by a cloud of contaminated air that spreads under the influence of wind near the soil surface. There is a problem of predicting the contaminated zone parameters in order to ensure safety. Normally, various methods are used to calculate the concentration of a hazardous impurity for this purpose. However, the obtained results correlate poorly often with each other and with the available experimental data. The purpose of this work is to assess the applicability of theoretical methods for calculating the parameters of the contamination zone formed as a result of the hazardous substance evaporation from the liquid strait surface. Several methods are used in this work: field tests, calculations using Gaussian distribution, solving a two-dimensional equation of turbulent diffusion with wind speed varying in height, and a computational experiment using the ANSYS software package. Results. The article presents the data of field tests with the spill of liquid chlorine, showing the distribution of impurities with the wind flow in the horizontal and vertical directions. It presents calculation results of the concentration of impurities entering the atmosphere from the surface of a liquid strait under conditions close to field tests. The applicability of the methods used to calculate the parameters of the contaminated zone are assessed taking into account the data of field tests. The correlation between the experimental and calculated data have been established to be observed in the range of specific concentrations only. The spectrum of high concentrations is better described by solving the two-dimensional equation of turbulent diffusion. The spectrum of average concentration values – by Gaussian distribution and computational experiment using the ANSYS software package. Conclusion. Understanding the specifics of computational methods application allows to predict the distribution of impurities in the surface air layer more accurately, taking into account the intensity of the emission, wind speed and surface roughness.
    VL  - 6
    IS  - 1
    ER  - 

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Author Information
  • Faculty of Natural Sciences, Belarusian State Pedagogical University Named After Maxim Tank, Minsk, Belarus

  • Turbulence Laboratory, Institute of Heat and Mass Transfer Named After A.V. Luikov National Academy of Science of Belarus, Minsk, Belarus

  • Transfer Theory Laboratory, Institute of Heat and Mass Transfer Named After A.V. Luikov National Academy of Science of Belarus, Minsk, Belarus

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