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LARGE EDDY SIMULATION FOR THE PREDICTION OF HUMAN COUGHING

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LARGE EDDY SIMULATION FOR THE PREDICTION OF HUMAN COUGHING

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dc.contributor.author Payri, Raul es_ES
dc.contributor.author Marti-Aldaravi, Pedro es_ES
dc.contributor.author Quintero-Igeño, Pedro-Manuel es_ES
dc.contributor.author Marco-Gimeno, Javier es_ES
dc.date.accessioned 2022-06-08T18:05:57Z
dc.date.available 2022-06-08T18:05:57Z
dc.date.issued 2021 es_ES
dc.identifier.issn 1044-5110 es_ES
dc.identifier.uri http://hdl.handle.net/10251/183127
dc.description.abstract [EN] The health awareness that has arisen from the COVID pandemic has been translated into interest in studying the contagion methods of airborne viruses. The cough mechanism is one cause of virion spread. To analyze this phenomenon, computational fluid dynamics (CFD) simulations of the human cough have been set up in closed room conditions. Fundamental droplet, air, and thermodynamic conditions for the problem have been extracted from the literature and applied to the simulations performed. Three typologies of cough have been computed corresponding to the maximum, minimum, and mean peak cough velocities of the human being, and their corresponding injection profiles. Coughs were simulated in transient conditions and the droplets were tracked following an Eulerian-Lagrangian approach and large eddy simulation (LES) formulation for the turbulence phenomenon. Results revealed droplet travel distances of almost 2 m for the strongest cough case. Also, the presence of droplets smaller than 5 ¿m of diameter, the main virus spreader, was considerably larger than particles of bigger size. Additionally, most of the droplets evaporate or fall to the ground within 2 s after their injection. The remaining ones that stayed above the waistline or remained suspended in the air followed trajectories coming from buoyancy effects rather than being driven by the initial velocity profile. Moreover, it was found how almost the totality of the droplets expelled followed a trajectory towards the floor. Droplets that did not evaporate during the fluid injection became airborne for at least 5 seconds after the coughing es_ES
dc.description.sponsorship The equipment and resources used in this work have been partially supported by "Conselleria d'Educacio, Investigacio, Cultura y Esport" of Generalitat Valenciana in the framework of the "Ajudes per a grups d'investigacioconsolidables" program (Project Reference AICO/2020/208) . Additionally, the Ph.D. student Javier Marco-Gimeno has been funded by a grant from the Gov-ernment of Generalitat Valenciana with reference ACIF/2020/259 and financial support from The European Union. es_ES
dc.language Inglés es_ES
dc.publisher Begell House Inc. es_ES
dc.relation.ispartof Atomization and Sprays es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject COVID-19 es_ES
dc.subject Cough es_ES
dc.subject Droplets es_ES
dc.subject CFD es_ES
dc.subject PDF es_ES
dc.subject Trajectories es_ES
dc.subject Aerosols es_ES
dc.subject.classification INGENIERIA AEROESPACIAL es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title LARGE EDDY SIMULATION FOR THE PREDICTION OF HUMAN COUGHING es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1615/AtomizSpr.2021037129 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GENERALITAT VALENCIANA//ACIF%2F2020%2F259//AYUDA PREDOCTORAL GVA-MARCO GIMENO. PROYECTO: ESTUDIO COMPUTACIONAL DE LA FORMACION Y EL DESARROLLO DE CHORROS LIQUIDOS EN CONDICIONES DE BAJA PRESION/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GENERALITAT VALENCIANA//AICO%2F2020%2F208//NUEVOS CONCEPTOS EN INYECCIÓN DE GASOLINA (NCIG)/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Payri, R.; Marti-Aldaravi, P.; Quintero-Igeño, P.; Marco-Gimeno, J. (2021). LARGE EDDY SIMULATION FOR THE PREDICTION OF HUMAN COUGHING. Atomization and Sprays. 31(9):49-73. https://doi.org/10.1615/AtomizSpr.2021037129 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1615/AtomizSpr.2021037129 es_ES
dc.description.upvformatpinicio 49 es_ES
dc.description.upvformatpfin 73 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 31 es_ES
dc.description.issue 9 es_ES
dc.relation.pasarela S\445031 es_ES
dc.contributor.funder European Commission es_ES
dc.contributor.funder GENERALITAT VALENCIANA es_ES
upv.costeAPC 1452 es_ES


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