ArticlePhysics of fluids (Woodbury, N.Y. : 1994)2021
Direct numerical simulation of turbulent dispersion of evaporative aerosol clouds produced by an intense expiratory event.
Article in Physics of fluids (Woodbury, N.Y. : 1994), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
8 citing papers in PubMed, 37 citations in OpenAlex.
- Effects of upper respiratory tract anatomy and head movement on the buoyant flow and particle dispersion generated in a violent expiratory event.Journal of aerosol science · 2022Article
- Covid-19 Exposure Assessment Tool (CEAT): Easy-to-use tool to quantify exposure based on airflow, group behavior, and infection prevalence in the community.medRxiv : the preprint server for health sciences · 2022Article
- The effects of indoor temperature and humidity on local transmission of COVID-19 and how it relates to global trends.PloS one · 2022Article
- Experimental study of the dispersion of cough-generated droplets from a person going up- or downstairs.AIP advances · 2022Article
- Comparison between fully resolved and time-averaged simulations of particle cloud dispersion produced by a violent expiratory event.Acta mechanica Sinica = Li xue xue bao · 2022Article
- Numerical investigation of droplets in a cross-ventilated space with sitting passengers under asymptomatic virus transmission conditions.Physics of fluids (Woodbury, N.Y. : 1994) · 2021Article
- How coronavirus survives for hours in aerosols.Physics of fluids (Woodbury, N.Y. : 1994) · 2021Article
- Numerical investigation of respiratory drops dynamics released during vocalization.Physics of fluids (Woodbury, N.Y. : 1994) · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Airborne particles are a major route for transmission of COVID-19 and many other infectious diseases. When a person talks, sings, coughs, or sneezes, nasal and throat secretions are spewed into the air. After a short initial fragmentation stage, the expelled material is mostly composed of spherical particles of different sizes. While the dynamics of the largest droplets are dominated by gravitational effects, the smaller aerosol particles, mostly transported by means of hydrodynamic drag, form clouds that can remain afloat for long times. In subsaturated air environments, the dependence of pathogen-laden particle dispersion on their size is complicated due to evaporation of the aqueous fraction. Particle dynamics can significantly change when ambient conditions favor rapid evaporation rates that result in a transition from buoyancy-to-drag dominated dispersion regimes. To investigate the effect of particle size and evaporation on pathogen-laden cloud evolution, a direct numerical simulation of a mild cough was coupled with an evaporative Lagrangian particle advection model. The results suggest that while the dispersion of cough particles in the tails of the size distribution are unlikely to be disrupted by evaporative effects, preferential aerosol diameters (30-40
Identifiers
What OpenQuestion holds
Registered trials
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.