About: A novel circulated air curtain system to confine the transmission of exhaled contaminants: A numerical and experimental investigation

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: A novel circulated air curtain system to confine the transmission of exhaled contaminants: A numerical and experimental investigation Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	A novel circulated air curtain system to confine the transmission of exhaled contaminants: A numerical and experimental investigation
Creator	Qian, Hua Zhou, Rong Zheng, Xiaohong Wang, Haixin
Source	Medline; PMC
abstract	Air curtain is an efficient device for cutting off airflow and confining contaminants. Inspired by the ability, a circulated air curtain composed of end-to-end plane jets generated by a relay of air pillars is proposed to confine exhaled contaminants in this study. Furthermore, the optimization study of computational fluid dynamics (CFD) is conducted to explore cutting-off performance and find better design parameters under different conditions, i.e., human-curtain distance, enclosure shape, jet velocity from air pillar, and exhalation modes. The multidirectional blockage and vortex-like rotative transmission routes of exhaled airflow are observed when air curtain exists. Results indicate that contaminants are concentrated around the source. The average mole fraction of exhaled contaminants outside air curtain under different human-curtain distance decreases 4.3%–19.6% compared to mixing ventilation with same flux. Shortening the human-curtain distance can improve the performance of air curtain and may change the direction of exhaled airflow. Moreover, It has better performance when the enclosure shape is close to a circle. Higher jet velocity is better for improving the confinement performance, but the trend is not very obvious as velocity increases. For exhalation modes, it is more challenging to control exhaled contaminants for intense exhalation activity (such as coughing) in steady simulation, but results in transient simulation show better performance when coughing only once. These results can provide a reference for the subsequent design and improvement in applying air curtain in hospital wards or other places, especially during the period of flu outbreak. ELECTRONIC SUPPLEMENTARY MATERIAL (ESM): Supplementary material is available in the online version of this article at 10.1007/s12273-020-0667-5. The ESM file presents the animation of the droplet trajectory from the droplet birth at 0 s to 8 s
has issue date	2020-08-04(xsd:dateTime)
bibo:doi	10.1007/s12273-020-0667-5
bibo:pmid	32837692
has license	no-cc
sha1sum (hex)	73de34555ac92a128001e6e2755b461afe92dd26
schema:url	https://doi.org/10.1007/s12273-020-0667-5
resource representing a document's title	A novel circulated air curtain system to confine the transmission of exhaled contaminants: A numerical and experimental investigation
has PubMed Central identifier	PMC7399030
has PubMed identifier	32837692
schema:publication	Build Simul
resource representing a document's body	covid:73de34555ac92a128001e6e2755b461afe92dd26#body_text
is schema:about of	named entity 'average' named entity 'flu' named entity 'airflow' named entity 'For' named entity 'Results' named entity 'reference' named entity 'exhaled' named entity 'pillars' named entity 'Shortening' named entity 'provide' named entity 'EFFICIENT' named entity 'TRANSMISSION' named entity 'HOSPITAL WARDS' named entity 'PERIOD' named entity 'IMPROVING' named entity 'SIMULATION' named entity 'JET' named entity 'FLUX' named entity 'BUT' named entity 'HUMAN' named entity 'ROUTES' named entity 'BLOCKAGE' named entity 'CHANGE' named entity 'OUTBREAK' named entity 'AIRFLOW' named entity 'MIXING' named entity 'airflow' named entity 'enclosure' named entity 'transient' named entity 'curtain' named entity 'study' named entity 'performance' named entity 'direction' named entity 'shape' named entity 'curtain' named entity 'device' named entity 'air curtain' named entity 'air curtain' named entity 'coughing' named entity 'cough' named entity 'velocity vectors' named entity 'cough' named entity 'trace gas' named entity 'air curtain' named entity '2.0' named entity '2.0' named entity 'diffusion' named entity 'CFD' named entity 'N 2 O' named entity 'nasal cavity' named entity 'air curtain' named entity 'fluid flow' named entity 'respiratory rate' named entity 'flux' named entity 'air curtain' named entity 'N 2 O' named entity 'grid-independent' named entity '2.0' named entity 'air curtain' named entity 'infection' named entity 'Computational fluid dynamics' named entity 'air curtain' named entity 'infection' named entity 'air curtain' named entity 'tracer gas' named entity 'infection control' named entity 'exhalation' named entity 'exhalation' named entity 'fluid density' named entity 'hydraulic diameter' named entity 'exhaled air' named entity 'exhalation' named entity 'Figure 8' named entity 'reference case' named entity 'horizontal variation' named entity 'sneezing' named entity 'air curtain' named entity 'turbulence'

Faceted Search & Find service v1.13.91 as of Mar 24 2020

Alternative Linked Data Documents: Sponger | ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3229 as of Jul 10 2020, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (94 GB total memory)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software