<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This study aims to evaluate numerically the influence of wind speed on scales of environmental harmful consequences caused by accidentally spilled toxic liquid evaporated from the surface of a free-form outlined spill spot. A coupled problem of the gas-dynamic movement of a toxic air-mixture cloud in the atmosphere’s surface layer under the influence of wind and a negative toxic inhalation impact on a human in an accident zone is solved by means of mathematical modelling and computer experiment. A three-dimensional non-stationary mathematical model of the turbulent movement of a gas-air mixture is used for obtaining distribution of relative mass concentration of toxic gas impurities in time and space. A probabilistic impact model based on using a modernized probit analysis method is used to obtain fields of conditional probability of a fatal human injury resulting from toxic gas inhalation. This technique allows environmental safety experts assessing the scale of considered type technogenic accident consequences numerically depending on wind speed conditions and elaborating the means to mitigate them to acceptable levels.</p>
</abstract>

This study aims to evaluate numerically the influence of wind speed on scales of environmental harmful consequences caused by accidentally spilled toxic liquid evaporated from the surface of a free-form outlined spill spot. A coupled problem of the gas-dynamic movement of a toxic air-mixture cloud in the atmosphere’s surface layer under the influence of wind and a negative toxic inhalation impact on a human in an accident zone is solved by means of mathematical modelling and computer experiment. A three-dimensional non-stationary mathematical model of the turbulent movement of a gas-air mixture is used for obtaining distribution of relative mass concentration of toxic gas impurities in time and space. A probabilistic impact model based on using a modernized probit analysis method is used to obtain fields of conditional probability of a fatal human injury resulting from toxic gas inhalation. This technique allows environmental safety experts assessing the scale of considered type technogenic accident consequences numerically depending on wind speed conditions and elaborating the means to mitigate them to acceptable levels.

Numerical Evaluation of Wind Speed Influence on Accident Toxic Spill Consequences Scales

Kharkiv National Aerospace University ‘KhAI’

Taras Shevchenko National University of Kyiv

Environmental and Climate Technologies

This work is licensed under the Creative Commons Attribution 4.0 International License.

This study aims to evaluate numerically the influence of wind speed on scales of environmental harmful consequences caused by accidentally spilled toxic liquid...

Numerical Evaluation of Wind Speed Influence on Accident Toxic Spill Consequences Scales

Published Online: Sep 21, 2023

Page range: 450 - 463

Received: Mar 27, 2023

Accepted: Jul 13, 2023

DOI: https://doi.org/10.2478/rtuect-2023-0033

Keywords
Accidental toxic spill, evaporation rate, hazardous area, impact probit analysis, inhalation toxic dose, toxic gas concentration

© 2023 Yurii Skob et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Numerical Evaluation of Wind Speed Influence on Accident Toxic Spill Consequences Scales

Published Online: Sep 21, 2023

Page range: 450 - 463

Received: Mar 27, 2023

Accepted: Jul 13, 2023

DOI: https://doi.org/10.2478/rtuect-2023-0033

KeywordsAccidental toxic spill, evaporation rate, hazardous area, impact probit analysis, inhalation toxic dose, toxic gas concentration

© 2023 Yurii Skob et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
Accidental toxic spill, evaporation rate, hazardous area, impact probit analysis, inhalation toxic dose, toxic gas concentration