Abstract
The method of generalized separation of variables for solving nonlinear steady and unsteady heat- and mass-transfer equations is outlined. New exact solutions of one-, two-, and three-dimensional heat equations are obtained. Anisotropic media with a nonlinear heat source of general form are considered for the case in which the main thermal diffusivities show a power or an exponential dependence on the spatial coordinates. Equations with a logarithmic heat source are analyzed in detail. The results obtained are applied to the problem of thermal explosion in an anisotropic medium.
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Polyanin, A.D., Zhurov, A.I. & Vyaz’min, A.V. Exact solutions of nonlinear heat- and mass-transfer equations. Theor Found Chem Eng 34, 403–415 (2000). https://doi.org/10.1007/BF02827383
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DOI: https://doi.org/10.1007/BF02827383