Jet entrainment effect on fire-induced flow in isothermal model applied to reduced-scale tunnel
Based on the entrainment rate of isothermal jet, an application method of the isothermal model in tunnel fire was presented through the more reasonable estimation of total smoke flow rate and its density at jet exit. Acetone LIF measurement was performed to identify the entrainment of ambient air qu...
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| Veröffentlicht in: | Fire safety journal 2009-04, Vol.44 (3), p.435-438 |
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| container_end_page | 438 |
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| container_title | Fire safety journal |
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| creator | Lee, Eui Ju Oh, Kwang Chul Park, Jeong |
| description | Based on the entrainment rate of isothermal jet, an application method of the isothermal model in tunnel fire was presented through the more reasonable estimation of total smoke flow rate and its density at jet exit. Acetone LIF measurement was performed to identify the entrainment of ambient air qualitatively, and the entrainment constants were provided with the results of a previous study of which jet velocity corresponded to that of this study. The entrainment effect was more remarkable for the smaller fire, because the normalized axial distance to ceiling was increased with decreasing the fire size. These results suggested that the present model considering the jet entrainment might enhance the previous isothermal model in tunnel fire. |
| doi_str_mv | 10.1016/j.firesaf.2008.08.004 |
| format | Article |
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Acetone LIF measurement was performed to identify the entrainment of ambient air qualitatively, and the entrainment constants were provided with the results of a previous study of which jet velocity corresponded to that of this study. The entrainment effect was more remarkable for the smaller fire, because the normalized axial distance to ceiling was increased with decreasing the fire size. These results suggested that the present model considering the jet entrainment might enhance the previous isothermal model in tunnel fire.</description><identifier>ISSN: 0379-7112</identifier><identifier>DOI: 10.1016/j.firesaf.2008.08.004</identifier><identifier>CODEN: FSJODZ</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Building technical equipments ; Buildings ; Buildings. Public works ; Exact sciences and technology ; Fire behavior of materials and structures ; Fire protection ; Isothermal model ; Jet entrainment ; Tunnel fire ; Tunnels, galleries</subject><ispartof>Fire safety journal, 2009-04, Vol.44 (3), p.435-438</ispartof><rights>2008 Elsevier Ltd</rights><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c370t-48ae2c195b0dbf74ad16451ae638acc9d9da08f806c77a82eef837d3a677d4f03</citedby><cites>FETCH-LOGICAL-c370t-48ae2c195b0dbf74ad16451ae638acc9d9da08f806c77a82eef837d3a677d4f03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0379711208001161$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21295437$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Lee, Eui Ju</creatorcontrib><creatorcontrib>Oh, Kwang Chul</creatorcontrib><creatorcontrib>Park, Jeong</creatorcontrib><title>Jet entrainment effect on fire-induced flow in isothermal model applied to reduced-scale tunnel</title><title>Fire safety journal</title><description>Based on the entrainment rate of isothermal jet, an application method of the isothermal model in tunnel fire was presented through the more reasonable estimation of total smoke flow rate and its density at jet exit. Acetone LIF measurement was performed to identify the entrainment of ambient air qualitatively, and the entrainment constants were provided with the results of a previous study of which jet velocity corresponded to that of this study. The entrainment effect was more remarkable for the smaller fire, because the normalized axial distance to ceiling was increased with decreasing the fire size. These results suggested that the present model considering the jet entrainment might enhance the previous isothermal model in tunnel fire.</description><subject>Applied sciences</subject><subject>Building technical equipments</subject><subject>Buildings</subject><subject>Buildings. Public works</subject><subject>Exact sciences and technology</subject><subject>Fire behavior of materials and structures</subject><subject>Fire protection</subject><subject>Isothermal model</subject><subject>Jet entrainment</subject><subject>Tunnel fire</subject><subject>Tunnels, galleries</subject><issn>0379-7112</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLBDEQhOeg4PMnCLnobdbOvDJzEhGfLHjRc2iTDmbJJGuSVfz3zriLV6GgL19VU1UUZxwWHHh3uVoYGymhWVQA_WIWNHvFIdRiKAXn1UFxlNIKgAuA4bCQT5QZ-RzR-nG6jIwhlVnwbA4qrdcbRZoZF76Y9cymkN8pjujYGDQ5huu1sxOQA4v0y5ZJoSOWN96TOyn2DbpEp7t7XLze3b7cPJTL5_vHm-tlqWoBuWx6pErxoX0D_WZEg5p3TcuRurpHpQY9aITe9NApIbCviExfC11jJ4RuDNTHxcU2dx3Dx4ZSlqNNipxDT2GTZAV12zZDN4HtFlQxpBTJyHW0I8ZvyUHOE8qV3E0o5wnlLGgm3_nuAc79TESvbPozV7wa2qYWE3e15Whq-2kpyqQs-WmXKVRlqYP959MPY6qNfw</recordid><startdate>20090401</startdate><enddate>20090401</enddate><creator>Lee, Eui Ju</creator><creator>Oh, Kwang Chul</creator><creator>Park, Jeong</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7T2</scope><scope>7U2</scope><scope>C1K</scope></search><sort><creationdate>20090401</creationdate><title>Jet entrainment effect on fire-induced flow in isothermal model applied to reduced-scale tunnel</title><author>Lee, Eui Ju ; Oh, Kwang Chul ; Park, Jeong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c370t-48ae2c195b0dbf74ad16451ae638acc9d9da08f806c77a82eef837d3a677d4f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Building technical equipments</topic><topic>Buildings</topic><topic>Buildings. Public works</topic><topic>Exact sciences and technology</topic><topic>Fire behavior of materials and structures</topic><topic>Fire protection</topic><topic>Isothermal model</topic><topic>Jet entrainment</topic><topic>Tunnel fire</topic><topic>Tunnels, galleries</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, Eui Ju</creatorcontrib><creatorcontrib>Oh, Kwang Chul</creatorcontrib><creatorcontrib>Park, Jeong</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Health and Safety Science Abstracts (Full archive)</collection><collection>Safety Science and Risk</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>Fire safety journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lee, Eui Ju</au><au>Oh, Kwang Chul</au><au>Park, Jeong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Jet entrainment effect on fire-induced flow in isothermal model applied to reduced-scale tunnel</atitle><jtitle>Fire safety journal</jtitle><date>2009-04-01</date><risdate>2009</risdate><volume>44</volume><issue>3</issue><spage>435</spage><epage>438</epage><pages>435-438</pages><issn>0379-7112</issn><coden>FSJODZ</coden><abstract>Based on the entrainment rate of isothermal jet, an application method of the isothermal model in tunnel fire was presented through the more reasonable estimation of total smoke flow rate and its density at jet exit. 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| ispartof | Fire safety journal, 2009-04, Vol.44 (3), p.435-438 |
| issn | 0379-7112 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Building technical equipments Buildings Buildings. Public works Exact sciences and technology Fire behavior of materials and structures Fire protection Isothermal model Jet entrainment Tunnel fire Tunnels, galleries |
| title | Jet entrainment effect on fire-induced flow in isothermal model applied to reduced-scale tunnel |
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