Evidence map›Paper›PMID 32836705›Full record

ArticleBuilding and environment2020

Evaluation of cough-jet effects on the transport characteristics of respiratory-induced contaminants in airline passengers' local environments.

Yihuan Yan, Xueren Li, Lin Yang, Ping Yan, Jiyuan Tu

Open access · greenAbstract read
In one paragraph

Article in Building and environment, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
5.2field-weighted citation impact, top 3% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 57 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Yihuan YanSchool of Air Transportation / Flying, Shanghai University of Engineering Science, Shanghai, 201620, China.
Xueren LiSchool of Engineering, RMIT University, PO Box 71, Bundoora, VIC, 3083, Australia.
Lin YangSchool of Engineering, RMIT University, PO Box 71, Bundoora, VIC, 3083, Australia.
Ping YanSchool of Air Transportation / Flying, Shanghai University of Engineering Science, Shanghai, 201620, China.
Jiyuan TuSchool of Engineering, RMIT University, PO Box 71, Bundoora, VIC, 3083, Australia.
RMIT University · AUShanghai University of Engineering Science · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Urgent demands of assessing respiratory disease transmission in airliner cabins had awakened from the COVID-19 pandemics. This study numerically investigated the cough flow and its time-dependent jet-effects on the transport characteristics of respiratory-induced contaminants in passengers' local environments. Transient simulations were conducted in a three-row Boeing 737 cabin section, while respiratory contaminants (2 μm-1000 μm) were released by different passengers with and without coughing and were tracked by the Lagrangian approach. Outcomes revealed significant influences of cough-jets on passengers' local airflow field by breaking up the ascending passenger thermal plumes and inducing several local airflow recirculation in the front of passengers. Cough flow could be locked in the local environments (i.e. near and intermediate fields) of passengers. Results from comparative studies also revealed significant increases of residence times (up to 50%) and extended travel distances of contaminants up to 200 μm after considering cough flow, whereas contaminants travel displacements still remained similar. This was indicating more severe contaminate suspensions in passengers' local environments. The cough-jets was found having long and effective impacts on contaminants transport up to 4 s, which was 8 times longer than the duration of cough and contaminants release process (0.5 s). Also, comparing to the ventilated flow, cough flow had considerable impacts to a much wider size range of contaminants (up to 200 μm) due to its strong jet-effects.

Indexed as

Airliner cabinCFDCough contaminantsCough-jetsCOVID-19Local environment

Identifiers

PMID32836705
PMCPMC7428687
OpenAlexW3048704517

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.