Abstract
Numerical research results of deciduous tree ignition by cloud-to-ground lightning discharge are presented. The problem is solved in one-dimensional statement in cylindrical system of coordinates. The typical range of influence parameters of positive and negative cloud-to-ground lightning discharges is considered. Ignition conditions for deciduous tree are established.
Highlights
Deterministic-probabilistic technique of the forest fires forecast taking into account storm activity [1,2,3] and system of the lightning caused fire danger forecast on satellite data TOVS [4] are developed by present time
The marked laws are characteristic for a typical range of parameters of external influence on wood of deciduous trees in storm conditions
The obtained results have the practical value consisting in a substantiation of a reality of the mechanism of deciduous tree ignition by cloud-to-ground lightning discharge
Summary
Deterministic-probabilistic technique of the forest fires forecast taking into account storm activity [1,2,3] and system of the lightning caused fire danger forecast on satellite data TOVS [4] are developed by present time. Functionality of such systems can be considerably expanded by means of mathematical model of tree ignition by cloud-to-ground lightning discharge [5]. Various breeds of trees differ under many characteristics, including thermophysical and structural It is known, that distinctions between coniferous and deciduous trees are most essential [6]. Research objective is creation of physical and mathematical model of deciduous tree ignition by the cloud-to-ground lightning discharge and definition of one ignition conditions
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