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首页> 外文期刊>Journal of Heat Transfer >Fully Developed Couette Flow of Three Fluids With Variable Thermophysical Properties Flowing Through a Porous Medium Channel Heated Asymmetrically With Large Temperature Differences
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Fully Developed Couette Flow of Three Fluids With Variable Thermophysical Properties Flowing Through a Porous Medium Channel Heated Asymmetrically With Large Temperature Differences

机译：充分发展的具有可变热物理性质的三种流体的库埃特流，流经具有大温差的不对称加热的多孔介质通道

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摘要

In this paper, we study the steady laminar flow in a fluid-saturated porous medium channel bounded by two parallel plates with constant but unequal temperatures. One plate is moving with constant velocity while the other is stationary. For the porous medium, the Brinkman-Darcy-Forchheimer model is used. The investigation concerns engine oil, water, and air, taking into account the variation of their physical properties with temperature. The results are obtained with the direct numerical solution of the governing equations and cover large temperature differences. It is found that dynamic viscosity plays an important role on the results, which depart significantly from those of a fluid with constant properties when the temperature difference between the plates is large. Except that there are cases where the flow is restricted near the moving plate while at the lower part of the channel, the fluid is motionless.
机译：在本文中，我们研究了由两个平行板以恒定但不相等的温度为边界的流体饱和多孔介质通道中的稳定层流。一个板以恒定的速度移动，而另一个板则静止。对于多孔介质，使用Brinkman-Darcy-Forchheimer模型。该调查涉及发动机油，水和空气，并考虑了其物理性质随温度的变化。结果是通过控制方程的直接数值解获得的，并且涵盖了较大的温差。发现动态粘度在结果中起重要作用，当板之间的温差较大时，动态粘度与具有恒定特性的流体的粘度大不相同。除了在通道的下部流动板附近流动受限的情况外，流体是静止的。

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