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ESIMPLE, a new pressure-velocity coupling algorithm for built-environment CFD simulations

2021-10-15Journal article Restricted access
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dc.contributor.authorSerra, Nuno
dc.contributor.authorSemião, Viriato
dc.date.accessioned2021-09-20T10:04:01Z
dc.date.available2021-09-20T10:04:01Z
dc.date.issued2021-10-15
dc.description.abstractBuilt environments are major energy consumers and, therefore, tools supporting their efficient design and guaranteeing thermal comfort and indoor air quality are a key factor for energy, environmental sustainability and healthiness. This has been particularly stressed recently by the need to understand the phenomenon of transport of pollutants and/or pathogens leading to exhalation of droplets and aerosols in built environments from people potentially contaminated with the new coronaviruses. In the pursuance of such objectives, CFD procedures have been widely used as prediction tools due to its ability and flexibility in capturing the main features of built environment flows. On the other hand, CFD methods are supported by complex and timeconsuming calculation procedures, especially when used to predict heat and mass transport phenomena in built environment. A possible strategy to reduce computational time is the optimization of the pressure-velocity coupling. An extension of the SIMPLE algorithm (ESIMPLE) is proposed, and its performance compared with the well stablished algorithms, SIMPLE, PISO, SIMPLEC and LIMPO. For that, three test case scenarios are simulated: i) a cubical room (1 m3) with heated floor; ii) a small-scale room, with an occupant, mimicking an office room; and iii) a real-scale office room with an occupant. For the worst scenario, ESIMPLE yielded similar CPU-time required for convergence, and for the best scenario, a three times faster convergence rate was attained. Simultaneously, this newly proposed coupling scheme algorithm, yielded a lower number of iteration steps required for convergence, in 6 of the 9 simulated cases.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSERRA, Nuno; SEMIÃO, Viriato – ESIMPLE, a new pressure-velocity coupling algorithm for built-environment CFD simulations. Building and Environment. ISSN 0360-1323. Vol. 204 (2021), pp. 1-11pt_PT
dc.identifier.doi10.1016/j.buildenv.2021.108170pt_PT
dc.identifier.eissn1873-684X
dc.identifier.issn0360-1323
dc.identifier.urihttp://hdl.handle.net/10400.21/13747
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0360132321005710?via%3Dihubpt_PT
dc.subjectPressure-velocity couplingpt_PT
dc.subjectBuilt environment simulationpt_PT
dc.subjectCFDpt_PT
dc.subjectModelling techniquept_PT
dc.titleESIMPLE, a new pressure-velocity coupling algorithm for built-environment CFD simulationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.citation.endPage11pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleBuilding and Environmentpt_PT
oaire.citation.volume204pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSerra
person.familyNamede Almeida Semião
person.givenNameNuno
person.givenNameViriato Sérgio
person.identifierL-3648-2013
person.identifier.ciencia-id6119-B182-0440
person.identifier.ciencia-id1C12-3034-5DD5
person.identifier.orcid0000-0002-6656-6926
person.identifier.orcid0000-0003-0612-8155
person.identifier.ridC-6712-2018
person.identifier.scopus-author-id57196937307
person.identifier.scopus-author-id6701412600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb18ef55a-2e60-4c04-9cc5-b4a750905b90
relation.isAuthorOfPublication94684df1-8a58-4882-94e9-d0667218051c
relation.isAuthorOfPublication.latestForDiscoveryb18ef55a-2e60-4c04-9cc5-b4a750905b90
relation.isProjectOfPublication1c76892c-cd3a-4e0f-9297-ba8cb3572b39
relation.isProjectOfPublication.latestForDiscovery1c76892c-cd3a-4e0f-9297-ba8cb3572b39

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