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Heat transfer in a conical cylinder with porous medium

机译:带有多孔介质的锥形圆柱体中的传热

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In this paper, numerical study of heat transfer in a conical annular cylinder fixed with saturated porous medium is presented. The heat transfer is assumed to take place by natural convection and radiation. The inner surface of conical cylinder is maintained at uniform wall temperature. The governing partial differential equations are non-dimensionalised using suitable non-dimensional parameters and then solved by using finite element method. The porous medium is divided using triangular elements with uneven element size. A computer software is used to solve the coupled momentum and energy equations in an iterative manner. The results are discussed for various values of geometric and physical parameters of porous medium with emphasis on cone angle of the cylinder. It is seen that the cone angle plays a vital role in heat transfer from the hot surface to porous medium.
机译:本文对饱和多孔介质固定的圆锥形圆柱体内的传热进行了数值研究。假定传热是通过自然对流和辐射进行的。锥形圆柱体的内表面保持在均匀的壁温下。使用合适的无量纲参数对控制的偏微分方程进行无量纲化,然后使用有限元方法求解。多孔介质使用单元尺寸不均匀的三角形单元进行划分。使用计算机软件以迭代方式求解耦合的动量和能量方程。讨论了多孔介质的各种几何和物理参数值的结果,重点是圆柱体的锥角。可以看出,锥角在从热表面到多孔介质的热传递中起着至关重要的作用。

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