Flame pulsation frequency of conduction-controlled rectangular hydrocarbon pool fires of different aspect ratios in a sub-atmospheric pressure

被引：58

作者：

Tang, Fei ^{[1
,2
]}

Hu, Longhua ^{[1
]}

Wang, Qiang ^{[1
]}

Ding, Zhongjun ^{[2
]}

机构：

[1] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China

[2] Hefei Univ Technol, Sch Transportat Engn, Hefei 230009, Anhui, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2014年 / 76卷

关键词：

Hydrocarbon rectangular pool fire; Aspect ratio; Flame pulsation frequency; Sub-atmospheric pressure; LOW AIR-PRESSURE; COMBUSTION CHARACTERISTICS; N-HEPTANE; BURNING RATES; BEHAVIOR; INSTABILITY; ATMOSPHERE; GASOLINE; ETHANOL; FLOW;

D O I：

10.1016/j.ijheatmasstransfer.2014.04.047

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper reveals the flame pulsation behavior of conduction-controlled rectangular hydrocarbon pool fires in a sub-atmospheric pressure. Experiments are carried out in both normal- (100 kPa; Hefei city, altitude 50 m) and reduced (64 kPa; Lhasa city, altitude 3650 m) pressure atmospheres, using rectangular ethanol pool fires with the same area S (36 cm(2)) but different aspect ratios (long side divided by short side n = L/W = 1, 2, 3, 4, 8). Results show that the flame pulsation frequency of the pool fire changes small with pressure, meanwhile increases with aspect ratio, which can be well characterized by a non-dimensional function between Strouhal number (St) and Froude number (Fr). (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：447 / 451

页数：5

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