Numerical investigation for a hyperbolic annular fin with temperature dependent thermal conductivity

作     者：M.T.Darvishi F.Khani Abdul Aziz 

作者机构：Department of MathematicsRazi UniversityKermanshah 67149Iran Department of Mechanical EngineeringSchool of Engineering and Applied ScienceGonzaga UniversitySpokaneWA 99258USA 

出 版 物：《Propulsion and Power Research》 (推进与动力（英文）)

年 卷 期：2016年第5卷第1期

页      面：55-62页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：Hyperbolic annular fin Thermal performance Pseudospectral method 

摘      要：An annular fin of hyperbolic profile with temperature dependent thermal conductivity is studied by pseudospectral *** illustrating the effect of fin dimensions,surface convection characteristics and the thermal conductivity parameter on the thermal performance of the fin are presented and discussed.A comparison of the obtained numerical results is made with the closed form analytical solution available in the literature for the case of constant themal *** comparison confirms the high accuracy of numerical *** the thermal conductivity increases with temperature,the effect is to elevate both the temperature distribution in the fin and the fin *** converse is true when the themal conductivity decreases with temperature.