Journal
INTERNATIONAL JOURNAL OF THERMOPHYSICS
Volume 33, Issue 5, Pages 924-941Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10765-012-1179-z
Keywords
Convection-radiation heat transfer; Differential transformation method; Moving fin; Thermal analysis; Variable thermal conductivity
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In this article, heat transfer in a moving fin with variable thermal conductivity, which is losing heat by simultaneous convection and radiation to its surroundings is analyzed. The calculations are carried out by using the differential transformation method (DTM) which is an analytical solution technique that can be applied to various types of differential equations. The effects of parameters such as the Peclet number, , thermal conductivity parameter, , convection-conduction parameter, (c), radiation-conduction parameter, (r), dimensionless convection sink temperature, (a), and dimensionless radiation sink temperature, (s), on the temperature distribution are illustrated and explained. The analytical solution is found to be in good agreement with the direct numerical solution. Moreover, the results demonstrate that the DTM is very effective in generating analytical solutions for even highly nonlinear problems.
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