| Issue |
E3S Web Conf.
Volume 457, 2023
International Scientific and Practical Symposium “The Future of the Construction Industry: Challenges and Development Prospects” (FCI-2023)
|
|
|---|---|---|
| Article Number | 02003 | |
| Number of page(s) | 9 | |
| Section | Integrated Safety in Construction | |
| DOI | https://doi.org/10.1051/e3sconf/202345702003 | |
| Published online | 05 December 2023 | |
Cough Aerosol Cloud Parameters
1 Moscow State University of Civil Engineering, 26, Yaroslavskoye shosse, Moscow, 129337, Russia
2 The All-Russian Research Institute for Optical and Physical Measurements Federal State Unitary Enterprise (VNIIOFI), 119361, Ozernaya st. 46, Moscow, Russia
* Corresponding author: GavrilinSN@mgsu.ru
This work is a further development of the authors' COVID-19 pandemic consequences research. The dynamics of the cough aerosol cloud was studied. An experimental setup for fixing spatial and temporal distributions of aerosol cloud velocities was used. Flags were placed on the threads of the experimental setup. On the first and second frames, the area and shape of the flags were different. The process of air passing through the frames was recorded by photographic equipment. The footage was compared by a computer program to identify differences.The results of an experiment with five adults (18–22 years, men), volunteered for study participation, are presented. The method of aerosol cloud visualization is applied. The dynamic parameters of the aerosol cloud are estimated. The velocity of the air flow arising from coughing was measured. The shape of the flow was determined depending on the time. It was found that the flow front moves with acceleration at the initial stage of propagation and with a constant velocity at the final stage. A nonlinear dependence of the change in the volume of cough air flow aerosol on time was established.
Key words: aerosol / experiment / velocity / cough / temperature / flow
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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