4.5 Article

Iterative Solutions for the Nonlinear Heat Transfer Equation of a Convective-Radiative Annular Fin with Power Law Temperature-Dependent Thermal Properties

Journal

SYMMETRY-BASEL
Volume 15, Issue 6, Pages -

Publisher

MDPI
DOI: 10.3390/sym15061204

Keywords

extended surface; annular fin (AF); thermal distribution; thermal stress; DTM

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The present investigation focuses on analyzing the temperature distribution in a conductive-radiative rectangular profiled annular fin with internal heat generation. The study takes into account the nonlinear variation of thermal conductivity and heat transfer coefficient governed by the power law. The analytical approximation for the non-dimensional temperature profile is obtained using the differential transform method (DTM)-Pade approximant. The impact of thermal parameters on the temperature field and thermal stress is elaborated with graphs.
The temperature distribution in a conductive-radiative rectangular profiled annular fin with internal heat generation is scrutinized in the present investigation. The nonlinear variation of thermal conductivity and heat transfer coefficient governed by the power law is considered. The analytical approximation for the non-dimensional temperature profile is obtained using the differential transform method (DTM)-Pade approximant. The nondimensionalization of the governing energy equation using dimensionless terms yields a nonlinear ordinary differential equation (ODE) with corresponding boundary conditions. The resulting ODE is analytically solved with the assistance of the DTM-Pade approximant procedure. Furthermore, the impact of thermal parameters on the temperature field and thermal stress is elaborated with graphs. The important results of the report divulge that temperature distribution greatly enhances with an augmentation of the heat generation parameter, but it gradually reduces with an increment in the magnitude of the thermogeometric and radiative-conductive parameter.

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