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Micropolar couple stress thermofluidics and entropy in Forchheimer channel

机译:微息夫妇应力热流体和熵在Forchheimer频道

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This paper presents an analysis of the entropy generated in thermofluidic configuration involving micropolar couple stress fluid flow inside a Forchheimer channel. The channel is composed of a porous medium trapped between two parallel permeable plates separated by distance H through which the fluid can be sucked out/ injected in. One of the plate bears a constant temperature and other is subjected to a uniform heat flux. A Cartesian coordinate system is chosen to model the flow configuration. The nondimensional nonlinear governing equations are solved by the differential transform method and Runge-Kutta-Fehlberg method to ascertain the accuracy of the results. Both the methods do match to the order of 10~(-6) for the quantities velocity, microrotation, and temperature. These quantities and their gradients are required to the compute entropy generation number. The effects of the parameters on entropy generation and Bejan number are discussed through various plots.
机译:本文介绍了涉及在前轮通道内部的微杆夫妇应力流体流动的热流体配置中产生的熵。 通道由捕获的多孔介质捕获在由距离H分开的两个平行的可渗透板之间,通过该透过距离,流体可以被吸入/注入其中。其中一个板承受恒定温度,并且其它经受均匀的热通量。 选择笛卡尔坐标系以模拟流配置。 通过差分变换方法和跳动-Kutta-Fehlberg方法解决了非倾向的非线性控制方程,以确定结果的准确性。 两种方法都与数量速度,微液和温度相匹配10〜(-6)。 计算熵生成号需要这些数量及其梯度。 通过各种图讨论了参数对熵生成和BEJAN数的影响。

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