About: Transient transport model of particles resulting from high momentum respiratory activities: Inter-personal exposure

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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	Transient transport model of particles resulting from high momentum respiratory activities: Inter-personal exposure
Creator	Ghaddar, Nesreen Ghali, Kamel Habchi, Carine
Source	Elsevier; Medline; PMC
abstract	In this work, a transient mathematical multi-region zonal transport model of particle behavior resulting from high momentum respiratory activities (HMRA) is developed focusing on the transient inter-personal exposure (IPE) in indoor spaces ventilated by displacement ventilation (DV) systems. The developed model was validated by experimentation and by published empirical data. Three stages are identified with respect to time for the variation of the IPE: a first stage dominated by the propagation and decay of the exhaled jet, a particles' redistribution stage, and a particles' removal stage. The inhaled dose is affected by the DV flow rate, cough velocity, particle diameter and distance between the occupants. The DV system with a flow rate of 100 L/s reduced significantly the inhaled dose during particle redistribution and removal stages decreasing the total inhaled dose by 83% compared to a flow rate of 50 L/s. IPE is higher when particle diameter is increased from 1 to 20 μm due to the opposition of particle removal by the upward DV. A comparison between steady and transient modeling of the IPE showed that steady modeling captures the physics affecting particle spread due to HMRA but it over-predicts the inhaled dose. It is found that for a DV flow rate of 100 L/s and a cough velocity of 22 m/s during 1 s, and 1 μm particles, the minimum required distance between the occupants for a threshold inhaled dose of 10(−5) kg is nearly 0.5 m by transient modeling while it is 2.15 m by steady state modeling.
has issue date	2015-07-31(xsd:dateTime)
bibo:doi	10.1016/j.buildenv.2015.07.028
bibo:pmid	32288033
has license	no-cc
sha1sum (hex)	2065921ad92c09b0bc985d84127d2a73e2f494c9
schema:url	https://doi.org/10.1016/j.buildenv.2015.07.028
resource representing a document's title	Transient transport model of particles resulting from high momentum respiratory activities: Inter-personal exposure
has PubMed Central identifier	PMC7125956
has PubMed identifier	32288033
schema:publication	Build Environ
resource representing a document's body	covid:2065921ad92c09b0bc985d84127d2a73e2f494c9#body_text
is schema:about of	named entity 'Transient' named entity 'transport' named entity 'respiratory' named entity 'RESPIRATORY' named entity 'FOCUSING' named entity 'EXPERIMENTATION' named entity 'EMPIRICAL DATA' named entity 'MATHEMATICAL' named entity 'RESULTING FROM' named entity 'SYSTEMS' named entity 'MODEL' named entity 'INTER-' named entity 'MODEL OF' named entity 'EXPOSURE' named entity 'MOMENTUM' named entity 'VENTILATION' named entity 'HIGH' named entity 'VALIDATED' named entity 'INDOOR' named entity 'TRANSIENT' named entity 'MOMENTUM' named entity 'RESPIRATORY' named entity 'MULTI' named entity 'WORK' named entity 'TRANSIENT' named entity 'INTERPERSONAL' named entity 'PARTICLE' named entity 'VENTILATED' named entity 'ZONAL' named entity 'REGION' named entity 'ACTIVITIES' named entity 'PERSONAL EXPOSURE' named entity 'RESULTING FROM' named entity 'MODEL OF' named entity 'TRANSPORT MODEL' named entity 'PARTICLES' named entity 'BEHAVIOR' named entity 'TRANSPORT MODEL' named entity 'PUBLISHED' named entity 'ACTIVITIES' named entity 'DISPLACEMENT' named entity 'HIGH' covid:arg/2065921ad92c09b0bc985d84127d2a73e2f494c9 named entity 'mathematical' named entity 'momentum' named entity 'Steady state' named entity '1.2' named entity 'microclimate' named entity 'cough' named entity 'thermal plumes' named entity 'displacement ventilation' named entity 'microclimate' named entity '2.25' named entity 'cough' named entity 'convective' named entity 'IAQ' named entity 'time constant' named entity 'generation time' named entity 'disease transmission' named entity 'sneezing' named entity 'steady-state' named entity '2.2' named entity 'mic2' named entity 'cough' named entity 'sneezing' named entity 'electrical load' named entity '0.01' named entity 'mass flow rate' named entity 'TRA' named entity 'physical model' named entity 'infection' named entity 'steady-state' named entity 'chronometer watch' named entity 'convection' named entity 'Severe Acute Respiratory Syndrome' named entity 'flow rates' named entity 'exhalation' named entity 'buoyant' named entity 'convective'

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