Study on Flame Height of Merged Flame From Multiple Fire Sources

Weng, W.G.; Kamikawa, Daisuke; Fukuda, Yukikatsu; Hasemi, Y.; Kagiya, Koji

doi:10.1080/00102200490514949

Cited by 73 publications

(26 citation statements)

References 12 publications

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“…However, most of them [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] were conducted in open space to investigate the effects of fuel type, fire shape, size, number, spacing and array pattern on the mass loss rate (MLR), flame height, flame merging, heat feedback, fire whirl, etc.. For example, Weng et al [2] , Kamikawa et al [3] and Fukuda et al [4] studied the effects of fire spacing and heat release rate (HRR) http …”

Section: Introductionmentioning

confidence: 97%

“…The burning behaviors of multiple fires can be very different from a single fire due to the interaction of adjacent fires. Once the fires are located sufficiently close to each other, the air entrainment around the flames could be restricted and the resulting pressure drop between fires might lead to flame merging which will cause the increase of flame height compared to a single fire [2,3] . The flame merging will make the fire more destructive, leading to difficulties in firefighting and may even lead to fire whirls [2][3][4][5] .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental study on flame merging behaviors from two pool fires along the longitudinal centerline of model tunnel with natural ventilation

Wan

Gao

et al. 2016

Combustion and Flame

104

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Experimental study on flame merging behaviors from two pool fires along the longitudinal centerline of model tunnel with natural ventilation

Wan

Gao

et al. 2016

Combustion and Flame

104

View full text Add to dashboard Cite

“…Secondly, Dimensionless flame height is relation with the dimensionless heat release rate Q * [10]. It decreases the height of the fire with half standard heat release, while increases that of the fire with two times standard.…”

Section: The Effect Of Burner and Hrrmentioning

confidence: 99%

Simulation study on the effects of different flow conditions on the combustion of square fire

Jiao

2019

E3S Web Conf.

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Combustion is a process in which light and heat are produced when a series of complex chemical reactions take place. Our life has long been inseparable from combustion, such as coal for power generation, fuel oil for car engines, rocket propulsion, waste incineration; but at the same time, with the development of the city, the damage caused by frequent fires is more serious. The purpose of this topic is to study the laws of plane flame combustion under different conditions. It is proposed to simulate the real plane fire combustion conditions with different flow conditions such as wind speed, combustion space and opening conditions, and propose relevant cognition and Countermeasures Based on this. Through the analysis of the above points, we can simulate the combustion situation of different weather and floors un-der different real conditions, different scale indoor environment and boundary conditions, so as to carry out new building requirements and planning, and lay a referential foundation for the evaluation and control of the fire scale.

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“…Recently, several researchers have performed computational and experimental studies with propane burners arranged in square arrays to analyse the effects of flame merging on overall fire behaviour Weng et al 2004;Kamikawa et al 2005). A dimensionless heat release rate and flame height were introduced to identify the effects of flame merging.…”

Section: Introductionmentioning

confidence: 99%

Interactions of fires of neighbouring shrubs in two- and three-shrub arrangements

Dahale

Shotorban

Mahalingam

2015

Int. J. Wildland Fire

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A physics-based computational model was utilised to better understand the interactions of fires generated by burning of neighbouring shrubs. The model included large-eddy simulation for flow field turbulence and a two-phase approach for the coupling of solid fuel and gas phases. Two different arrangements consisting of two and three identical shrubs placed adjacent to each other were considered. All shrubs were simultaneously ignited from their base with the aid of separate ground fuels. Both crown and ground fuels were modelled as porous media with thermophysical properties of chamise and excelsior respectively. Modelling results indicated that the peak mass-loss rate and the vertical fire spread rate within a shrub decrease when the shrub separation distance increases. At zero separation, heat release rate normalised by the number of shrubs is enhanced by 5 and 15% for the two-shrub and the three-shrub arrangements, respectively. Generation of strong vorticity by higher gravitational torque appeared to be the cause for enhanced burning in the threeshrub arrangement. This effect was seen to be much weaker for the two-shrub arrangement. Interactions between the individual fires cease for a centre-to-centre distance of 1.5 and 2 times the shrub diameter for the two-shrub and the threeshrub arrangement respectively.

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Study on Flame Height of Merged Flame From Multiple Fire Sources

Cited by 73 publications

References 12 publications

Experimental study on flame merging behaviors from two pool fires along the longitudinal centerline of model tunnel with natural ventilation

Experimental study on flame merging behaviors from two pool fires along the longitudinal centerline of model tunnel with natural ventilation

Simulation study on the effects of different flow conditions on the combustion of square fire

Interactions of fires of neighbouring shrubs in two- and three-shrub arrangements

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