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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2018 Volume 58, Number 10, Pages 1640–1655 (Mi zvmmf10791)

This article is cited in 16 papers

Identification of thermal conductivity coefficient using a given temperature field

A. F. Albua, V. I. Zubovba

a Dorodnicyn Computing Center, Federal Research Center “Computer Science and Control”, Russian Academy of Sciences, Moscow, Russia
b Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Russia

Abstract: The problem of determining the temperature-dependent thermal conductivity coefficient is studied. The study is based on the Dirichlet boundary value problem for the two-dimensional nonstationary heat equation. The cost functional is defined as the rms deviation of the temperature field from experimental data. For the numerical solution of the problem, an algorithm based on the modern fast automatic differentiation technique is proposed. Examples of solving the posed problem are given.

Key words: heat conduction, inverse coefficient problems, gradient, heat equation, adjoint equations, numerical algorithm.

UDC: 519.633

Received: 28.11.2017

DOI: 10.31857/S004446690003584-3


 English version:
Computational Mathematics and Mathematical Physics, 2018, 58:10, 1585–1599

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