Recent developments in applied mathematics and mechanics: theory, experiment and practice. Devoted to the 80th anniversary of academician N.N.Yanenko

Akademgorodok, Novosibirsk, Russia, June 24 - 29, 2001

Abstracts

Siberian participants

Mathematical modeling of drying of the forest fuel layer

Grishin A.M., Katayeva L.Yu., Loboda E.L.

Tomsk State University (Tomsk)

It is known, that forest fires occur, when forest fuel layer is burning, if their moisture content does not exceed some critical value. In a report original setting up a problem of drying forest fuel layer is given, in the frames of which this layer is modelled by three-phase easily permeable medium, whose drying speed is determined by Herts-Knudsen Law. As a rusult of mathematical modeling it is stated, that during forest fuel drying solar radiation and wind, and a soil type as well greatly influence the process.
It is shown, that forest fuel moisture content increases from the top down, speed of drying an upper layer of the forest fuel is maximum. Examples of daily and seasonal changing forest fuel moisture content, which are in good agreement with observation data, are given.

Full Text in Russian: PDF (216 kb)
Note. Abstracts are published in author's edition

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