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https://www.scirp.org/journal/mnsms
https://doi.org/10.4236/mnsms.2020.102002

has been cited by the following article:

• TITLE: Variational Approach to 2D and 3D Heat Conduction Modeling

  AUTHORS: Slavko Đurić, Ivan Aranđelović, Milan Milotić

  KEYWORDS: Classical Equation of Heat Conduction, Generalized Equation of Heat Conduction, Calculus of Variations, Approximate Solution

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.12 No.4, April 30, 2024

  ABSTRACT: The paper proposes an approximate solution to the classical (parabolic) multidimensional 2D and 3D heat conduction equation for a 5 × 5 cm aluminium plate and a 5 × 5 × 5 cm aluminum cube. An approximate solution of the generalized (hyperbolic) 2D and 3D equation for the considered plate and cube is also proposed. Approximate solutions were obtained by applying calculus of variations and Euler-Lagrange equations. In order to verify the correctness of the proposed approximate solutions, they were compared with the exact solutions of parabolic and hyperbolic equations. The paper also presents the research on the influence of time parameters τ as well as the relaxation times τ ∗ to the variation of the profile of the temperature field for the considered aluminum plate and cube.