MATHEMATICAL SIMULATION OF HEAT TRANSFER IN SOIL LAYER AT INFLUENCE OF THE FOREST FIRE CENTRE

Baranovskiy N.V, Toichuev R.M, Olaleye A.O

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The thermophysics of soils is one of the major branches of technical and agronomical physics. Still Chudnovskiн A.F. specified, that the urgency of problems of thermophysics of soils is caused by influence on formation of a climate of many power processes proceeding in a layer of soil. Great value thermal modes of influence of seats of forest fire on surface layers of soil. After fires in soils change of physical and chemical properties, water balance and activity of microorganisms is observed. Therefore the important problem demanding the decision is development of mathematical models according to influence of thermal modes of influence of forest fires on soils. Research objective – development of the mathematical model describing heat transfer in soil layer as a result of influence of the centre of ignition. For the first time the most simple one-dimensional mathematical model of an estimation of influence of thermal modes of forest fires on surface layers of soil is presented. Two-layer structure of soil under consideration. It is established, that considerable changes of soil temperature occurs only in a layer, rich with organic chemistry. That will lead to considerable influence on functioning of microbiogeocenoses. Temperature distributions in system «clay-layer - organic chemistry-layer - forest combustible material-layer - air» for various types of forest fires and during the various moments of time are obtained. The obtained data can be used for an estimation of borders of influence of seats of forest fire on functioning of microbiogeocenoses.

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Барановский Н.В, Тойчуев Р.М, Олалейе О.А МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ ТЕПЛОПЕРЕНОСА В СЛОЕ ПОЧВЫ ПРИ ВОЗДЕЙСТВИИ ОЧАГА ЛЕСНОГО ПОЖАРА // Научное обозрение. Физико-математические науки . 2020. № 1. С. 19-20;
URL: https://physics-mathematics.ru/en/article/view?id=12 (дата обращения: 24.06.2026).