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

IF 1.4 Q4 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY

Environmental and Climate Technologies Pub Date : 2023-01-01 DOI:10.7250/conect.2023.046

Y. Skob, S. Yakovlev, O. Pichugina, Mykola Kalinichenko, Kyryl Korobchynskyi, A. Hulianytskyi

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Abstract

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.

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风速对事故有毒物质泄漏后果分级影响的数值评价

摘要本研究旨在数值评价风速对泄漏点表面蒸发的有毒液体意外泄漏造成的环境危害后果尺度的影响。采用数学建模和计算机实验相结合的方法，解决了在风的影响下大气表层有毒混合云的气动力运动和事故区域人体负毒性吸入冲击的耦合问题。建立了气-气混合气体湍流运动的三维非平稳数学模型，得到了有毒气体杂质相对质量浓度在时间和空间上的分布。采用现代概率分析方法建立了一个概率冲击模型，得到了人体吸入有毒气体致伤的条件概率场。这项技术允许环境安全专家根据风速条件对所考虑的技术事故后果进行数值评估，并制定将其减轻到可接受水平的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environmental and Climate Technologies GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY-

CiteScore

3.10

自引率

28.60%

发文量

审稿时长

16 weeks

期刊介绍： Environmental and Climate Technologies provides a forum for information on innovation, research and development in the areas of environmental science, energy resources and processes, innovative technologies and energy efficiency. Authors are encouraged to submit manuscripts which cover the range from bioeconomy, sustainable technology development, life cycle analysis, eco-design, climate change mitigation, innovative solutions for pollution reduction to resilience, the energy efficiency of buildings, secure and sustainable energy supplies. The Journal ensures international publicity for original research and innovative work. A variety of themes are covered through a multi-disciplinary approach, one which integrates all aspects of environmental science: -Sustainability of technology development- Bioeconomy- Cleaner production, end of pipe production- Zero emission technologies- Eco-design- Life cycle analysis- Eco-efficiency- Environmental impact assessment- Environmental management systems- Resilience- Energy and carbon markets- Greenhouse gas emission reduction and climate technologies- Methodologies for the evaluation of sustainability- Renewable energy resources- Solar, wind, geothermal, hydro energy, biomass sources: algae, wood, straw, biogas, energetic plants and organic waste- Waste management- Quality of outdoor and indoor environment- Environmental monitoring and evaluation- Heat and power generation, including district heating and/or cooling- Energy efficiency.