JP Journal of Heat and Mass Transfer
Volume 14, Issue 4, Pages 533 - 545
(November 2017) http://dx.doi.org/10.17654/HM014040533 |
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MATHEMATICAL SIMULATION OF DECIDUOUS TREE IGNITION BY CLOUD-TO-GROUND LIGHTNING DISCHARGE USING LARGE VESSELS APPROXIMATION
Nikolay V. Baranovskiy and Geniy V. Kuznetsov
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Abstract: The present article is devoted to the mathematical model development of a deciduous tree ignition by a cloud-to-ground lightning discharge. The physical and mathematical statement of the deciduous tree ignition problem using the large vessels approach is presented. The problem is considered in a flat statement in polar coordinates. The deciduous tree trunk warming up under the influence of the cloud-to-ground lightning discharge current has been researched. The thermal emission through the tree trunk during the discharge current passage is described by the Joule-Lenz law. The influence of large vessels moisture and its evaporation on a temperature field formation in the deciduous tree trunk is investigated. The possibility of the deciduous tree ignition caused by the cloud-to-ground lightning discharge is established. |
Keywords and phrases: ignition, chemical reaction, clout-to-ground lightning discharge, large vessels approximation. |
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