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Numerical solution of transient heat conduction equation with variable thermophysical properties by the Tau method
Author(s) -
Talati Faramarz,
Tavakoli Erfan,
Shahmorad Sedaghat
Publication year - 2014
Publication title -
numerical methods for partial differential equations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.901
H-Index - 61
eISSN - 1098-2426
pISSN - 0749-159X
DOI - 10.1002/num.21850
Subject(s) - mathematics , thermal conduction , algebraic equation , nonlinear system , heat equation , partial differential equation , transient (computer programming) , matrix (chemical analysis) , boundary value problem , variable (mathematics) , mathematical analysis , thermodynamics , chemistry , computer science , physics , chromatography , quantum mechanics , operating system
In this article, we proposed the operational approach to the Tau method for solving linear and nonlinear one‐dimensional transient heat conduction equations with variable thermophysical properties which can involve heat generation term. To solve heat conduction equation, first we recall the Tau method to obtain a matrix form of the governing differential equation. Then boundary and initial conditions are transformed into a matrix form. Finally the resulting systems of linear or nonlinear algebraic equations are given. Afterwards, efficient error estimation is also introduced for this method. Some numerical examples are given to illustrate the efficiency and high accuracy of the proposed method and also results are compared with solutions obtained by other methods. © 2013 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 30: 964–977, 2014