Numerical simulation of social distancing of preventing airborne transmission in open space with lateral wind direction, taking into account temperature of human body and floor surface
Issakhov A. Omarova P. Abylkassymova A.
March 2023Springer Science and Business Media Deutschland GmbH
Environmental Science and Pollution Research
2023#30Issue 1233206 - 33228 pp.
This paper presents the numerical results of particle propagation in open space, taking into account the temperature of the human body and the surface of the ground. And also, the settling of particles or droplets under the action of gravitational force and transport in the open air is taken into account, taking into account the temperature during the process of breathing and sneezing or coughing. The temperature of the body and the surface of the ground, different rates of particle emission from the mouth, such as breathing and coughing or sneezing, are numerically investigated. The effect of temperature, cross-inlet wind, and the velocity of particle ejection from a person’s mouth on social distancing is being investigated using a numerical calculation. The variable temperature of the human body forms a thermal plume, which affects the increase in the trajectory of the particle propagation, taking into account the lateral air flow. The thermal plume affects the particles in the breathing zone and spreads the particles over long distances in the direction of the airflow. The result of this work shows that in open space, taking into account the temperature of the body and the surface of the ground, a 2-m social distance may be insufficient for the process of sneezing and social distance must be observed depending on the breathing mode.
Airborne transmission , Breathe , Computational fluid dynamic (CFD) , COVID-19 , Indoor , Particle dispersion , SARS-CoV-2-laden droplets , Social distancing , Thermal effects from body
Text of the article Перейти на текст статьи
Al-Farabi Kazakh National University, Almaty, Kazakhstan
Kazakh British Technical University, Almaty, Kazakhstan
International Information Technology University, Almaty, Kazakhstan
Al-Farabi Kazakh National University
Kazakh British Technical University
International Information Technology University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026