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JOURNALS // Sibirskii Zhurnal Industrial'noi Matematiki // Archive

Sib. Zh. Ind. Mat., 2015 Volume 18, Number 1, Pages 28–44 (Mi sjim869)

An ingression problem for the systems of equations of a viscous heat-conducting gas in time-increasing noncylindrical domains

I. A. Kaliev, A. A. Shukhardin, G. S. Sabitova

Sterlitamak Branch of Bashkir State University, 37 Lenin av., 453103 Sterlitamak

Abstract: The global solvability of an ingression problem for the complete system of equations describing one-dimensional nonstationary flow of a viscous heat-conducting gas in time-increasing noncylindrical domains is proved. The proof of the existence and uniqueness theorem of the total solution with respect to time is connected with obtaining a priori estimates in which the constants depend only on the data of the problem and the length of the time interval $T$ but do not depend on the existence interval of a local solution.

Keywords: system of the Navier–Stokes equations, heat-conducting gas, global solvability, time-increasing non-cylindrical domains.

UDC: 517.957

Received: 09.09.2014

DOI: 10.17377/sibjim.2015.18.103


 English version:
Journal of Applied and Industrial Mathematics, 2015, 9:2, 179–195

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© Steklov Math. Inst. of RAS, 2024