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Open AccessArticle

Mathematical Modeling of Heat Transfer in an Element of Combustible Plant Material When Exposed to Radiation from a Forest Fire

School of Energy and Power Engineering, Tomsk Polytechnic University, Tomsk 634050, Russia
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Safety 2019, 5(3), 56; https://doi.org/10.3390/safety5030056
Received: 6 June 2019 / Revised: 18 July 2019 / Accepted: 11 August 2019 / Published: 15 August 2019
(This article belongs to the Special Issue Fire Safety 2019)
The last few decades have been characterized by an increase in the frequency and burned area of forest fires in many countries of the world. Needles, foliage, branches, and herbaceous plants are involved in burning during forest fires. Most forest fires are surface ones. The purpose of this study was to develop a mathematical model of heat transfer in an element of combustible plant material, namely, in the stem of a herbaceous plant, when exposed to radiation from a surface forest fire. Mathematically, the process of heat transfer in an element of combustible plant material was described by a system of non-stationary partial differential equations with corresponding initial and boundary conditions. The finite difference method was used to solve this system of equations in combination with a locally one-dimensional method for solving multidimensional tasks of mathematical physics. Temperature distributions were obtained as a result of modeling in a structurally inhomogeneous stem of a herbaceous plant for various scenarios of the impact of a forest fire. The results can be used to develop new systems for forest fire forecasting and their environmental impact prediction. View Full-Text
Keywords: combustible plant material; forest fire; radiation; heat transfer; mathematical modeling combustible plant material; forest fire; radiation; heat transfer; mathematical modeling
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Baranovskiy, N.; Demikhova, A. Mathematical Modeling of Heat Transfer in an Element of Combustible Plant Material When Exposed to Radiation from a Forest Fire. Safety 2019, 5, 56.

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