Proposal of a Mask and Its Performance Analysis with CFD for an Enhanced Aerodynamic Geometry That Facilitates Filtering and Breathing against COVID-19

As a result of the recent events associated with the SARS-CoV-2 around the world, there has been a need for research to strengthen health care. The use of masks or respirators has been an effective measure, reducing the risk of contagion caused by the spread of the virus in public places. Currently,...

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Autores principales:	Boris Miguel López-Rebollar, Abad Posadas-Bejarano, Daury García-Pulido, Adrián Torres-Maya, Carlos Díaz-Delgado
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	flow simulation porous media geometric design turbulence flow COVID-19 Thermodynamics QC310.15-319 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/7fd7501c8ff34779b97d06f41d87790e
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spelling	oai:doaj.org-article:7fd7501c8ff34779b97d06f41d87790e2021-11-25T17:31:45ZProposal of a Mask and Its Performance Analysis with CFD for an Enhanced Aerodynamic Geometry That Facilitates Filtering and Breathing against COVID-1910.3390/fluids61104082311-5521https://doaj.org/article/7fd7501c8ff34779b97d06f41d87790e2021-11-01T00:00:00Zhttps://www.mdpi.com/2311-5521/6/11/408https://doaj.org/toc/2311-5521As a result of the recent events associated with the SARS-CoV-2 around the world, there has been a need for research to strengthen health care. The use of masks or respirators has been an effective measure, reducing the risk of contagion caused by the spread of the virus in public places. Currently, there are masks that retain up to 99% of particles >0.3 microns; however, they lack an airtight seal with the face, leading to discomfort and poor protection in conditions without social distancing and areas without ventilation. The device proposed in this study includes a geometric design of static valves with convergent spirals and interior baffles that promotes enhanced aerodynamics with bidirectional flow. According to the analysis and CFD simulation of the proposed reusable, washable, and economic mask and valve system for breathing, coughing, and sneezing events, enhanced air exchange could be maintained, facilitating a higher inhalation flow through the side of the mask (62%) and a higher exhalation through the front of the mask (74%), thereby avoiding the recirculation of the flow to the interior of the mask. The inclusion of filters with KN95 characteristics in the inlets and outlets maintains velocities below 10 cm/s, reducing the probability of infection.Boris Miguel López-RebollarAbad Posadas-BejaranoDaury García-PulidoAdrián Torres-MayaCarlos Díaz-DelgadoMDPI AGarticleflow simulationporous mediageometric designturbulence flowCOVID-19ThermodynamicsQC310.15-319Descriptive and experimental mechanicsQC120-168.85ENFluids, Vol 6, Iss 408, p 408 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	flow simulation porous media geometric design turbulence flow COVID-19 Thermodynamics QC310.15-319 Descriptive and experimental mechanics QC120-168.85
spellingShingle	flow simulation porous media geometric design turbulence flow COVID-19 Thermodynamics QC310.15-319 Descriptive and experimental mechanics QC120-168.85 Boris Miguel López-Rebollar Abad Posadas-Bejarano Daury García-Pulido Adrián Torres-Maya Carlos Díaz-Delgado Proposal of a Mask and Its Performance Analysis with CFD for an Enhanced Aerodynamic Geometry That Facilitates Filtering and Breathing against COVID-19
description	As a result of the recent events associated with the SARS-CoV-2 around the world, there has been a need for research to strengthen health care. The use of masks or respirators has been an effective measure, reducing the risk of contagion caused by the spread of the virus in public places. Currently, there are masks that retain up to 99% of particles >0.3 microns; however, they lack an airtight seal with the face, leading to discomfort and poor protection in conditions without social distancing and areas without ventilation. The device proposed in this study includes a geometric design of static valves with convergent spirals and interior baffles that promotes enhanced aerodynamics with bidirectional flow. According to the analysis and CFD simulation of the proposed reusable, washable, and economic mask and valve system for breathing, coughing, and sneezing events, enhanced air exchange could be maintained, facilitating a higher inhalation flow through the side of the mask (62%) and a higher exhalation through the front of the mask (74%), thereby avoiding the recirculation of the flow to the interior of the mask. The inclusion of filters with KN95 characteristics in the inlets and outlets maintains velocities below 10 cm/s, reducing the probability of infection.
format	article
author	Boris Miguel López-Rebollar Abad Posadas-Bejarano Daury García-Pulido Adrián Torres-Maya Carlos Díaz-Delgado
author_facet	Boris Miguel López-Rebollar Abad Posadas-Bejarano Daury García-Pulido Adrián Torres-Maya Carlos Díaz-Delgado
author_sort	Boris Miguel López-Rebollar
title	Proposal of a Mask and Its Performance Analysis with CFD for an Enhanced Aerodynamic Geometry That Facilitates Filtering and Breathing against COVID-19
title_short	Proposal of a Mask and Its Performance Analysis with CFD for an Enhanced Aerodynamic Geometry That Facilitates Filtering and Breathing against COVID-19
title_full	Proposal of a Mask and Its Performance Analysis with CFD for an Enhanced Aerodynamic Geometry That Facilitates Filtering and Breathing against COVID-19
title_fullStr	Proposal of a Mask and Its Performance Analysis with CFD for an Enhanced Aerodynamic Geometry That Facilitates Filtering and Breathing against COVID-19
title_full_unstemmed	Proposal of a Mask and Its Performance Analysis with CFD for an Enhanced Aerodynamic Geometry That Facilitates Filtering and Breathing against COVID-19
title_sort	proposal of a mask and its performance analysis with cfd for an enhanced aerodynamic geometry that facilitates filtering and breathing against covid-19
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7fd7501c8ff34779b97d06f41d87790e
work_keys_str_mv	AT borismiguellopezrebollar proposalofamaskanditsperformanceanalysiswithcfdforanenhancedaerodynamicgeometrythatfacilitatesfilteringandbreathingagainstcovid19 AT abadposadasbejarano proposalofamaskanditsperformanceanalysiswithcfdforanenhancedaerodynamicgeometrythatfacilitatesfilteringandbreathingagainstcovid19 AT daurygarciapulido proposalofamaskanditsperformanceanalysiswithcfdforanenhancedaerodynamicgeometrythatfacilitatesfilteringandbreathingagainstcovid19 AT adriantorresmaya proposalofamaskanditsperformanceanalysiswithcfdforanenhancedaerodynamicgeometrythatfacilitatesfilteringandbreathingagainstcovid19 AT carlosdiazdelgado proposalofamaskanditsperformanceanalysiswithcfdforanenhancedaerodynamicgeometrythatfacilitatesfilteringandbreathingagainstcovid19
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Proposal of a Mask and Its Performance Analysis with CFD for an Enhanced Aerodynamic Geometry That Facilitates Filtering and Breathing against COVID-19

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