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JOURNALS // Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences // Archive

Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 2010 Issue 1(20), Pages 239–243 (Mi vsgtu745)

Short Communication
Mathematical Modelling

Simulation of Heat Waves in An Nonlinear Anisotropic Space

V. F. Formalyov, I. A. Selin, E. L. Kuznetcova

Dept. of Computational Mathematics and Programming, Moscow Aviation Institute (State University of Aerospace Technologies), Moscow

Abstract: For the first time analytical solution of the problem with boundary conditions in the non-linear anisotropic space for the quasilinear parabolic heat equation where heat conductivity tensor's components are temperature functions is obtained. This solution has show a wave type of the heat diffusion. Wave's fronts are ellipse in the anisotropic space at different time moment. Existence of the solution in wave's front and time derivative and space derivatives different orders has been analysed dependence from power of temperature which influences heat conductivity tensor's components.

Keywords: nonlinear problems, analytical methods, front of temperature indignation, additional boundary conditions, integral of thermal balance.

UDC: 517.958+536.2(075)

MSC: 80A17, 80M25

Original article submitted 23/XI/2009
revision submitted – 10/XII/2009

DOI: 10.14498/vsgtu745



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