UNSTEADY HEAT TRANSFER IN A SYSTEMOF THREE COAXIAL FINITE CYLINDERS

V. V. Mel'nikov

UDC 513.43 + 536.21

An integral transformation with the aid of which a solution
of the problem of unsteady-state heat transfer in a system
of three coaxial finite cylinders with different boundary
conditions on their surfaces depending on space and time is
presented. Each of the cylinders evolves heat of a certain
intensity, depending on time and coordinates. A numerical
solution of one variant of the boundary conditions is given
and illustrated by figures. The method of transforming the
solution of the problem with other boundary conditions is shown.

All-Russia Scientific-Research Institute of Technical Physics,
a/b 245, Snezhinsk, Chelyabinsk District, 456770, Russia; email:
snow@vniitf.ru. Translated from Inzhenerno-Fizicheskii
Zhurnal, Vol. 80, No. 1, pp. 140-148, January-February, 2007.
Original article submitted June 22, 2005; revision submitted
December 12, 2005.