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Convection-radiation thermal analysis of triangular porous fins with temperature-dependent thermal conductivity by DTM

机译:DTM随温度变化的三角形多孔翅片的对流辐射热分析

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摘要

Increasing performance of porous fins is one of the common priorities nowadays. Hence attention here is given to the convection and radiation effects in the analysis of performance of a porous triangular fin with temperature-dependent thermal conductivity. Mathematical problem is solved by differential transformation method (DTM). The DTM results are compared with the numerical results obtained by fourth-order Runge-Kutta method in order to confirm the accuracy of the analytical solution. The dimensionless temperature distributions, fin efficiency and fin effectiveness are studied with respect to emerging parameters involved in the analysis. It is noted that there is an increase in fin performance in view of porous constraint.
机译:如今,提高多孔散热片的性能是常见的优先事项之一。因此,在分析具有随温度变化的热导率的多孔三角鳍片的性能时,应注意对流和辐射效应。数学问题通过微分变换法(DTM)解决。将DTM结果与通过四阶Runge-Kutta方法获得的数值结果进行比较,以确认分析溶液的准确性。针对分析中涉及的新兴参数,研究了无因次温度分布,散热片效率和散热片效率。应当指出,鉴于多孔约束,鳍片性能有所提高。

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