Thermal analysis of annular fins with temperature-dependent thermal properties

The thermal analysis of the annular rectangular profile fins with variable thermal properties is investigated by using the homotopy analysis method （HAM）. The thermal conductivity and heat transfer coefficient are assumed to vary with a linear and power-law function of temperature, respectively. The...

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Bibliographic Details
Published in:Applied mathematics and mechanics 2013-11, Vol.34 (11), p.1349-1360
Main Author: Aksoy, I. G.
Format: Article
Language:English
Subjects:
Annular
Applications of Mathematics
Classical Mechanics
Fins
Fluid- and Aerodynamics
Heat transfer
Mathematical analysis
Mathematical Modeling and Industrial Mathematics
Mathematical models
Mathematics
Mathematics and Statistics
Partial Differential Equations
Temperature distribution
Thermal conductivity
Thermal properties
多相流
微分方程
气态
液态
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Summary:The thermal analysis of the annular rectangular profile fins with variable thermal properties is investigated by using the homotopy analysis method （HAM）. The thermal conductivity and heat transfer coefficient are assumed to vary with a linear and power-law function of temperature, respectively. The effects of the thermal-geometric fin parameter and the thermal conductivity parameter variations on the temperature distribution and fin efficiency are investigated for different heat transfer modes. Results from the HAM are compared with numerical results of the finite difference method （FDM）. It can be seen that the variation of dimensionless parameters has a significant effect on the temperature distribution and fin efficiency.
ISSN:0253-4827
1573-2754
DOI:10.1007/s10483-013-1750-8