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Effect of cross section on critical velocity in longitudinally ventilated tunnel fires
-
- Li, Ying Zhen (författare)
- RISE,Safety,Tunnel and Underground Space Safety
-
- Ingason, Haukur (bidragsgivare)
- RISE,Safety,Tunnel and Underground Space Safety
- (creator_code:org_t)
- Elsevier BV, 2017
- 2017
- Engelska.
- Ingår i: Fire safety journal. - : Elsevier BV. - 0379-7112 .- 1873-7226. ; , s. 303-311
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Numerical and theoretical work was conducted to investigate the effect of tunnel cross section on critical velocityfor smoke control in longitudinally ventilated tunnel fires. The results show that for small fires, the criticalvelocity decreases with both the increasing tunnel height and tunnel width. For large fires, the critical velocitysignificantly increases with the increasing tunnel height but is independent of tunnel width. Differentcalculation models are compared with a focus on effect of tunnel cross section. A new correlation is proposedto account for the effect of tunnel width based on the previous model.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Critical velocity
- Tunnel fires
- Longitudinal ventilation
- Smoke control
Publication and Content Type
- ref (subject category)
- art (subject category)
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