Modelling of Eruptive Fire Occurrence and Behaviour 被引量：1

Modelling of Eruptive Fire Occurrence and Behaviour

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摘要 Eruptive fires are one of the main causes of human losses in forest fire fighting. The sudden change in fire behaviour due to a fire eruption is extremely dangerous for fire-fighters because it is unpredictable. Very little literature is available to support either modelling or occurrence prediction for this phenomenon. In this study, an unsteady physical model of fire spread is detailed, which describes the initiation and development of eruptive fires with an induced wind sub-model. The latter phenomenon is proposed as the mainspring of fire eruptions. Induced wind is proportional to the rate of spread and the rate of spread is in a non-linear relationship with induced wind. This feedback can converge or diverge depending on the conditions. The model allows both explaining why an eruption can occur and predicting explicitly its occurrence according to meteorological conditions, topographic parameters, fuel bed properties and fire front width. The model is tested by comparing its results to a set of experiments carried out at laboratory scale and during an outdoor wildfire, the Kornati accident.

作者 Jacques-Henri Balbi Frangois Joseph Chatelon Jean Louis Rossi Albert Simeoni Domingos Xavier Viegas Carlos Rossa

机构地区 Research Laboratory Building Research Establisment Centre for Fire Safety Engineering Centre of Studies on Forest Fires Department of Mechanical Engineering School of Technology and Management

出处《Journal of Environmental Science and Engineering(B)》 2014年第3期115-132,共18页 环境科学与工程（B）

关键词 Eruptive fire unsteady solutions fire spread physical model. 森林火灾行为建模喷发实验室规模物理模型非线性关系人员伤亡消防人员

分类号 S762.3 [农业科学—森林保护学] TP391.9 [自动化与计算机技术—计算机应用技术]

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