Numerical study of the effects of fire on the flow and wake structures of an idealized building
Fire hazard is a crucial issue in urban arears. Fire plumes have large buoyancy forces and can significantly change the flow pattern around buildings. However, the interaction of these plumes with buildings under atmospheric boundary flow conditions has rarely been studied, and the effect on the wak...
Gespeichert in:
Veröffentlicht in: | Physics of fluids (1994) 2024-08, Vol.36 (8) |
---|---|
Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | |
---|---|
container_issue | 8 |
container_start_page | |
container_title | Physics of fluids (1994) |
container_volume | 36 |
creator | Sun, Yujia Chen, Qing Zheng, Shu Liu, Chao |
description | Fire hazard is a crucial issue in urban arears. Fire plumes have large buoyancy forces and can significantly change the flow pattern around buildings. However, the interaction of these plumes with buildings under atmospheric boundary flow conditions has rarely been studied, and the effect on the wake characteristics of the buildings remains unclear. To investigate the interaction of fire with the wake flow around a building, the large-eddy simulation framework is used to simulate the flow and wake structures of an idealized cubic building. Fire is found to produce significant changes in the wake structures. In particular, fire leads to strong fire-swirl vortices near the trailing edges of the building and intense fire-plume vortices in the midair region downstream of the building. In the time-averaged results, a pair of tip vortices appears behind the top corners of the building and counter-rotating vortex pairs are observed downstream. |
doi_str_mv | 10.1063/5.0220137 |
format | Article |
fullrecord | <record><control><sourceid>proquest_scita</sourceid><recordid>TN_cdi_scitation_primary_10_1063_5_0220137</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>3087002243</sourcerecordid><originalsourceid>FETCH-LOGICAL-c182t-b59d121be1a42a204a2fa341d03cf883e6a7cb005251b59888eec841087b42643</originalsourceid><addsrcrecordid>eNp90EtLxDAQB_AgCq6rB79BwJNC10nSptmjiC8Qveg5pOlEs3bbNUmR9dObfZw95cFvZpg_IecMZgykuK5mwDkwUR-QCQM1L2op5eHmXkMhpWDH5CTGBQCIOZcTol_GJQZvTUdjGts1HRxNn0jRObQpbp7OB6RDv_123fBDTd_SH_OFuSKMNo0Bt8701LdoOv-LLW1G37W-_zglR850Ec_255S839-93T4Wz68PT7c3z4VliqeiqeYt46xBZkpuOJSGOyNK1oKwTimB0tS2Aah4xbJVSiFaVeYN66bkshRTcrHruwrD94gx6cUwhj6P1CIjyKmUIqvLnbJhiDGg06vglyasNQO9yU9Xep9ftlc7G61PJvmh_wf_Aej4blI</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>3087002243</pqid></control><display><type>article</type><title>Numerical study of the effects of fire on the flow and wake structures of an idealized building</title><source>AIP Journals Complete</source><creator>Sun, Yujia ; Chen, Qing ; Zheng, Shu ; Liu, Chao</creator><creatorcontrib>Sun, Yujia ; Chen, Qing ; Zheng, Shu ; Liu, Chao</creatorcontrib><description>Fire hazard is a crucial issue in urban arears. Fire plumes have large buoyancy forces and can significantly change the flow pattern around buildings. However, the interaction of these plumes with buildings under atmospheric boundary flow conditions has rarely been studied, and the effect on the wake characteristics of the buildings remains unclear. To investigate the interaction of fire with the wake flow around a building, the large-eddy simulation framework is used to simulate the flow and wake structures of an idealized cubic building. Fire is found to produce significant changes in the wake structures. In particular, fire leads to strong fire-swirl vortices near the trailing edges of the building and intense fire-plume vortices in the midair region downstream of the building. In the time-averaged results, a pair of tip vortices appears behind the top corners of the building and counter-rotating vortex pairs are observed downstream.</description><identifier>ISSN: 1070-6631</identifier><identifier>EISSN: 1089-7666</identifier><identifier>DOI: 10.1063/5.0220137</identifier><identifier>CODEN: PHFLE6</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Buildings ; Flow distribution ; Flow simulation ; Fluid flow ; Large eddy simulation ; Plumes ; Trailing edges ; Vortices</subject><ispartof>Physics of fluids (1994), 2024-08, Vol.36 (8)</ispartof><rights>Author(s)</rights><rights>2024 Author(s). Published under an exclusive license by AIP Publishing.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c182t-b59d121be1a42a204a2fa341d03cf883e6a7cb005251b59888eec841087b42643</cites><orcidid>0000-0003-4347-5498 ; 0000-0002-6107-8931 ; 0000-0001-7049-493X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,794,4511,27923,27924</link.rule.ids></links><search><creatorcontrib>Sun, Yujia</creatorcontrib><creatorcontrib>Chen, Qing</creatorcontrib><creatorcontrib>Zheng, Shu</creatorcontrib><creatorcontrib>Liu, Chao</creatorcontrib><title>Numerical study of the effects of fire on the flow and wake structures of an idealized building</title><title>Physics of fluids (1994)</title><description>Fire hazard is a crucial issue in urban arears. Fire plumes have large buoyancy forces and can significantly change the flow pattern around buildings. However, the interaction of these plumes with buildings under atmospheric boundary flow conditions has rarely been studied, and the effect on the wake characteristics of the buildings remains unclear. To investigate the interaction of fire with the wake flow around a building, the large-eddy simulation framework is used to simulate the flow and wake structures of an idealized cubic building. Fire is found to produce significant changes in the wake structures. In particular, fire leads to strong fire-swirl vortices near the trailing edges of the building and intense fire-plume vortices in the midair region downstream of the building. In the time-averaged results, a pair of tip vortices appears behind the top corners of the building and counter-rotating vortex pairs are observed downstream.</description><subject>Buildings</subject><subject>Flow distribution</subject><subject>Flow simulation</subject><subject>Fluid flow</subject><subject>Large eddy simulation</subject><subject>Plumes</subject><subject>Trailing edges</subject><subject>Vortices</subject><issn>1070-6631</issn><issn>1089-7666</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp90EtLxDAQB_AgCq6rB79BwJNC10nSptmjiC8Qveg5pOlEs3bbNUmR9dObfZw95cFvZpg_IecMZgykuK5mwDkwUR-QCQM1L2op5eHmXkMhpWDH5CTGBQCIOZcTol_GJQZvTUdjGts1HRxNn0jRObQpbp7OB6RDv_123fBDTd_SH_OFuSKMNo0Bt8701LdoOv-LLW1G37W-_zglR850Ec_255S839-93T4Wz68PT7c3z4VliqeiqeYt46xBZkpuOJSGOyNK1oKwTimB0tS2Aah4xbJVSiFaVeYN66bkshRTcrHruwrD94gx6cUwhj6P1CIjyKmUIqvLnbJhiDGg06vglyasNQO9yU9Xep9ftlc7G61PJvmh_wf_Aej4blI</recordid><startdate>202408</startdate><enddate>202408</enddate><creator>Sun, Yujia</creator><creator>Chen, Qing</creator><creator>Zheng, Shu</creator><creator>Liu, Chao</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-4347-5498</orcidid><orcidid>https://orcid.org/0000-0002-6107-8931</orcidid><orcidid>https://orcid.org/0000-0001-7049-493X</orcidid></search><sort><creationdate>202408</creationdate><title>Numerical study of the effects of fire on the flow and wake structures of an idealized building</title><author>Sun, Yujia ; Chen, Qing ; Zheng, Shu ; Liu, Chao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c182t-b59d121be1a42a204a2fa341d03cf883e6a7cb005251b59888eec841087b42643</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Buildings</topic><topic>Flow distribution</topic><topic>Flow simulation</topic><topic>Fluid flow</topic><topic>Large eddy simulation</topic><topic>Plumes</topic><topic>Trailing edges</topic><topic>Vortices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sun, Yujia</creatorcontrib><creatorcontrib>Chen, Qing</creatorcontrib><creatorcontrib>Zheng, Shu</creatorcontrib><creatorcontrib>Liu, Chao</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physics of fluids (1994)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sun, Yujia</au><au>Chen, Qing</au><au>Zheng, Shu</au><au>Liu, Chao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical study of the effects of fire on the flow and wake structures of an idealized building</atitle><jtitle>Physics of fluids (1994)</jtitle><date>2024-08</date><risdate>2024</risdate><volume>36</volume><issue>8</issue><issn>1070-6631</issn><eissn>1089-7666</eissn><coden>PHFLE6</coden><abstract>Fire hazard is a crucial issue in urban arears. Fire plumes have large buoyancy forces and can significantly change the flow pattern around buildings. However, the interaction of these plumes with buildings under atmospheric boundary flow conditions has rarely been studied, and the effect on the wake characteristics of the buildings remains unclear. To investigate the interaction of fire with the wake flow around a building, the large-eddy simulation framework is used to simulate the flow and wake structures of an idealized cubic building. Fire is found to produce significant changes in the wake structures. In particular, fire leads to strong fire-swirl vortices near the trailing edges of the building and intense fire-plume vortices in the midair region downstream of the building. In the time-averaged results, a pair of tip vortices appears behind the top corners of the building and counter-rotating vortex pairs are observed downstream.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0220137</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0003-4347-5498</orcidid><orcidid>https://orcid.org/0000-0002-6107-8931</orcidid><orcidid>https://orcid.org/0000-0001-7049-493X</orcidid></addata></record> |
fulltext | fulltext |
identifier | ISSN: 1070-6631 |
ispartof | Physics of fluids (1994), 2024-08, Vol.36 (8) |
issn | 1070-6631 1089-7666 |
language | eng |
recordid | cdi_scitation_primary_10_1063_5_0220137 |
source | AIP Journals Complete |
subjects | Buildings Flow distribution Flow simulation Fluid flow Large eddy simulation Plumes Trailing edges Vortices |
title | Numerical study of the effects of fire on the flow and wake structures of an idealized building |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-09T09%3A30%3A29IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_scita&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Numerical%20study%20of%20the%20effects%20of%20fire%20on%20the%20flow%20and%20wake%20structures%20of%20an%20idealized%20building&rft.jtitle=Physics%20of%20fluids%20(1994)&rft.au=Sun,%20Yujia&rft.date=2024-08&rft.volume=36&rft.issue=8&rft.issn=1070-6631&rft.eissn=1089-7666&rft.coden=PHFLE6&rft_id=info:doi/10.1063/5.0220137&rft_dat=%3Cproquest_scita%3E3087002243%3C/proquest_scita%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=3087002243&rft_id=info:pmid/&rfr_iscdi=true |