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JOURNALS // Journal of Computational and Engineering Mathematics // Archive

J. Comp. Eng. Math., 2019 Volume 6, Issue 3, Pages 14–25 (Mi jcem149)

Computational Mathematics

Numerical research of the Barenblatt – Zheltov – Kochina model on the interval with Wentzell boundary conditions

N. S. Goncharov

South Ural State University, Chelyabinsk, Russian Federation

Abstract: In terms of numerical research, we study the Barenblatt – Zheltov – Kochina model, which describes dynamics of pressure of a filtered fluid in a fractured-porous medium with the general Wentzell boundary conditions. Based on the theoretical results associated with Galerkin method, we develop an algorithm and implement the numerical solution of the Cauchy-Wentzell problem on the interval $[0, 1]$. In particular, we examine the asymptotic approximation of the spectrum of the one-dimensional Laplace operator and present result of a computational experiment. In the paper, these problems are solved under the assumption that the initial space is a contraction of the space $L^2(0, 1)$.

Keywords: Barenblatt – Zheltov – Kochina equation, Wentzell boundary conditions, numerical research, Galerkin method.

UDC: 519.63

MSC: 35G15, 65N30

Received: 19.08.2019

Language: English

DOI: 10.14529/jcem190302



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