Some problems of flame spread along a liquid surface

Akita, Kazuo

doi:10.1016/s0082-0784(73)80097-9

Cited by 60 publications

(48 citation statements)

References 12 publications

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“…COMPARTMENT MODELING A thorough review of each of these divisions could easily occupy all 15 allowed pages. But my allotment is already exceeded, so I will only cite a few reviews for flame spread (20,69,77,93,94,(106)(107)(108)(109)(110)(111)(112)(113)(114)(115)(116)(117) and compartment modeling (14,21,24,32,(51)(52)(53)(54)(55)(56)(57)(58)(59)(60)(61)(62)(118)(119)(120)(121)(122)(123)(124)(125)(126)(127)(128)(129)(130) and carry forward one thread from the fire physics invited lecture at the last symposium. Professor Emmons identified window breaking as a key unresolved problem (31) and gave, in his usual way, sufficient physical insight to make a solution tractable.…”

Section: Flows Within Compartments and 3 Flows Atmentioning

confidence: 99%

Fire Physics - Promises, Problems, And Progress

Pagni¹

1989

Fire Safety Science - Proceedings of the 2nd International Symp

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Section: Flows Within Compartments and 3 Flows Atmentioning

confidence: 99%

Fire Physics - Promises, Problems, And Progress

Pagni¹

1989

Fire Safety Science - Proceedings of the 2nd International Symp

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“…The flame behavior for 6 1 em is not much larger value of 6 [1]. The values of V1 and V2 were examined for various cases.…”

Section: T Secmentioning

confidence: 99%

“…It can be easily understood from the location of the leading flame edge tha t the rate of heat transfer to the surface of notyet-liquefied sludge at the 6 …”

Section: Figure 9 Size Withmentioning

confidence: 99%

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Flame Spread Over Thin Layers Of Crude Oil Sludge

Suzuki¹,

Kudo²,

Sato³

et al. 1986

Fire Saf. Sci.

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Flame spread over thin layers of crude oil sludge has been studied. Flame spread experiments were performed by using a tray of 12 em wide, 60 em long and variable depth, installed in a temperature control bath.The aspects of spreading flames, the movements of leading and trailing flame edges, and the temperature distributions near leading flame edges ve r e examined for various sludge layer thicknesses.The mode of flame spread was found to change at a moment several minutes after the start of flame spread. At the first stage, the flame spread rate was observed to be almost constant, while at the second stage, it changed periodically. The former was about twice as large as the latter.Two different limiting thicknesses were revealed.One was the limiting thickness for the initiation of flame spread and the other was that for the continuance of flame spread. Based on these results, the mechanisms of flame spread were discussed. All the flame spread phenomena were shown to be consistently interpretable by assuming similar mechanisms of flame spread as indicated in our previous study.

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“…A series of studies was performed to understand the flame spread mechanism on alcohols [1][2][3][4][5][6][7][8][9][10][11][12] and hydrocarbon fuels [4,10]. Based on these results, Glassman and Dryer [13] wrote a review that includes explanations of the mechanism of pulsating spread over subflash point liquids.…”

Section: Introductionmentioning

confidence: 99%

Scaling Analysis on Pulsating Flame Spread over Liquids

Takahashi

Ito

Kudo

et al. 2008

International Journal of Chemical Engineering

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Scaling analyses based on subsurface layer instability were performed to explore the role of three independent (surface tension, gravity, and viscosity) influences on the mechanism of pulsating flame spread under normal and microgravity conditions. These three influences form two independent pi-numbers: the Marangoni (Ma) number and Grashof (Gr) number, which include the characteristic length scale ratio (depth of subsurface circulation)/(horizontal length of preheated liquid surface). The Prandtl (Pr) number was introduced to compensate for the different thermal diffusivity and kinematic viscosity of different liquids. Also a nondimensional flame spread rate, V/V D (= Vδ/D, where δ is the quenching distance and D is the diffusivity of fuel vapor) was introduced. Using these nondimensional parameters, the flame spread mechanism was divided into two separate regimes: for the shallow liquid pool the nondimensional flame spread rate was correlated with {Gr 0.2 /(Ma·Pr)} 1.0 , while for the deep liquid pool it was correlated with {Gr 0.2 /(Ma·Pr)} 1.5 .

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Some problems of flame spread along a liquid surface

Cited by 60 publications

References 12 publications

Fire Physics - Promises, Problems, And Progress

Fire Physics - Promises, Problems, And Progress

Flame Spread Over Thin Layers Of Crude Oil Sludge

Scaling Analysis on Pulsating Flame Spread over Liquids

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