2019
DOI: 10.1016/j.tust.2019.02.006
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Reduced-scale experimental and numerical study of fire in a hybrid ventilation system in a large underground subway depot with superstructures under fire scenario

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Cited by 23 publications
(6 citation statements)
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“…According to the studies in the literatures, the value of D   should be 4 ~ 16 (Shafee and Yozgatligil, 2018;Wang et al, 2019). Therefore, the mesh size of  is in the range of 0.11 m ~ 0.54 m. Then, the mesh size is set to be 0.125 m near the fire source (8 m from the fire center in both the downhill direction and uphill direction), and 0.25 m in other places as shown in Fig.…”
Section: The Grid Systemmentioning
confidence: 99%
“…According to the studies in the literatures, the value of D   should be 4 ~ 16 (Shafee and Yozgatligil, 2018;Wang et al, 2019). Therefore, the mesh size of  is in the range of 0.11 m ~ 0.54 m. Then, the mesh size is set to be 0.125 m near the fire source (8 m from the fire center in both the downhill direction and uphill direction), and 0.25 m in other places as shown in Fig.…”
Section: The Grid Systemmentioning
confidence: 99%
“…Let g0 be the initial boundary value of the hot flue gas flow; q be the horizontal propagation speed of hot flue gas flow. Then, the following can be derived from formula (11):…”
Section: Basic Control Equationsmentioning
confidence: 99%
“…As the passenger traffic of the URT grows annually, the safety of the URT system has attracted more and more attention. Fire is the leading hidden hazard that threatens the operational safety of the URT [7][8][9][10][11][12]. The complex buildings in the URT system, ranging from station, section, vehicle base, to control center, belong to varied fire resistance ratings.…”
Section: Introductionmentioning
confidence: 99%
“…Hu et al [7] pointed out as well that activating the smoke control system too early would have a malign effect on smoke extraction. In order to ensure the safety and reliability of underground subway ventilation system, Wang et al [8] simulated and recorded the height of smoke layer, air flux of shaft, and smoke movement route. It was found that smoke diffusion along the ground floor ceiling could be suppressed by outdoor air flowing into the exhaust fan and smoke did not accumulate in the mezzanine.…”
Section: Introductionmentioning
confidence: 99%