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Journal of Applied Mathematics

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Volume 2 |Article ID 578105 | https://doi.org/10.1155/S1110757X02108023

A. M. Abourabia, M. A. Mahmoud, W. S. Abdel Kareem, "Unsteady heat transfer of a monatomic gas between two coaxial circular cylinders", Journal of Applied Mathematics, vol. 2, Article ID 578105, 21 pages, 2002. https://doi.org/10.1155/S1110757X02108023

Unsteady heat transfer of a monatomic gas between two coaxial circular cylinders

A. M. Abourabia,1 M. A. Mahmoud,2 and W. S. Abdel Kareem3

1Department of Mathematics, Faculty of Science, Menoufiya University, Egypt

2Department of Mathematics, Faculty of Science, Zagazig University, Egypt

3Department of Mathematics, Faculty of Education, Suez Canal University, Egypt

Received16 Aug 2001

Abstract

We consider a kinetic-theory treatment of the cylindrical unsteady heat transfer. A model kinetic equation of the BGK (Bhatnager-Gross-Krook) type is solved using the method of moments with a two-sided distribution function. We study the relations between the different macroscopic properties of the gas as the temperature, density, and heat flux with both the radial distance r and the time t. Also we study the problem from the viewpoint of irreversible thermodynamics and estimate the entropy, entropy production, entropy flux, thermodynamic forces, kinetic coefficients, the change in internal energy, and verify Onsager′s relation for nonequilibrium thermodynamic properties of the system.

Copyright © 2002 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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