ArticleBuilding and environment2021
Measurements of exhaled airflow velocity through human coughs using particle image velocimetry.
Article in Building and environment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 51 citations in OpenAlex.
- A New Method Proposed for Analyzing Airflow Dynamics in Negative Pressure Isolation Chambers Using Particle Image Velocimetry.Bioengineering (Basel, Switzerland) · 2025Article
- Effects of Evaporation and Body Thermal Plume on Cough Droplet Dispersion and Exposure Risk for Queuing People.Life (Basel, Switzerland) · 2024Article
- Article
- Simplified models of aerosol collision and deposition for disease transmission.Scientific reports · 2023Article
- Large eddy simulation of sneeze plumes and particles in a poorly ventilated outdoor air condition: A case study of the University of Houston main campus.The Science of the total environment · 2023Article
- The effect of activity and face masks on exhaled particles in children.Pediatric investigation · 2023Article
- Mechanisms controlling the transport and evaporation of human exhaled respiratory droplets containing the severe acute respiratory syndrome coronavirus: a review.Environmental chemistry letters · 2023Review
- Finding the proper position of supply and return registers of air condition system in a conference hall in term of COVID-19 virus spread.Revue internationale du froid · 2023Article
- Quantitative evaluation of precautions against the COVID-19 indoor transmission through human coughing.Scientific reports · 2022Article
- Bioaerosol distribution characteristics and potential SARS-CoV-2 infection risk in a multi-compartment dental clinic.Building and environment · 2022Article
- A numerical approach for preventing the dispersion of infectious disease in a meeting room.Scientific reports · 2022Article
- Overview of the Role of Spatial Factors in Indoor SARS-CoV-2 Transmission: A Space-Based Framework for Assessing the Multi-Route Infection Risk.International journal of environmental research and public health · 2022Article
- Ventilation strategies to reduce airborne transmission of viruses in classrooms: A systematic review of scientific literature.Building and environment · 2022Review
- Article
- Flow dynamics of droplets expelled during sneezing.Physics of fluids (Woodbury, N.Y. : 1994) · 2021Article
- Experimental measurements of airflow features and velocity distribution exhaled from sneeze and speech using particle image velocimetry.Building and environment · 2021Article
- Recent research on expiratory particles in respiratory viral infection and control strategies: A review.Sustainable cities and society · 2021Review
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The sudden outbreak of coronavirus (COVID-19) has infected over 100 million people and led to over two million deaths (data in January 2021), posing a significant threat to global human health. As a potential carrier of the novel coronavirus, the exhaled airflow of infected individuals through coughs is significant in virus transmission. The research of detailed airflow characteristics and velocity distributions is insufficient because most previous studies utilize particle image velocimetry (PIV) with low frequency. This study measured the airflow velocity of human coughs in a chamber using PIV with high frequency (interval: 1/2986 s) to provide a detailed validation database for droplet propagation CFD simulation. Sixty cough cases for ten young healthy nonsmoking volunteers (five males and five females) were analyzed. Ensemble-average operations were conducted to eliminate individual variations. Vertical and horizontal velocity distributions were measured around the mouth area. Overall cough characteristics such as cough duration time (CDT), peak velocity time (PVT), maximum velocities, and cough spread angle were obtained. The CDT of the cough airflow was 520-560 m s, while PVT was 20 m s. The male/female averaged maximum velocities were 15.2/13.1 m/s. The average vertical/horizontal cough spread angle was 15.3°/13.3° for males and 15.6°/14.2° for females. In addition, the spatial and temporal distributions of ensemble-averaged velocity profiles were obtained in the vertical and horizontal directions. The experimental data can provide a detailed validation database the basis for further study on the influence of cough airflow on virus transmission using computational fluid dynamic simulations.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.