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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >Three dimensional fluctuating flow and heat transfer through a porous medium with variable permeability
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Three dimensional fluctuating flow and heat transfer through a porous medium with variable permeability

机译：通过渗透性可变的多孔介质的三维波动流和热传递

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摘要

This communication investigates the effect of permeability variation on the heat transfer and the flow through a highly porous medium bounded by an infinite flat porous plate with constant suction. The permeability of the porous medium varies in space and time both. The problem becomes three dimensional due to the periodic variation of permeability in the transverse direction. The governing equations are solved by adopting complex variable notations and the expressions for the velocity and temperature fields are obtained. The wall shear stress and rate of heat transfer are finally discussed. It is found that the amplitudes L, M, H, respectively, of the sk in friction components in the main and transverse directions and the rate of heat transfer, all decrease with the increase of the permeability of the porous medium, K-0, or the frequency of the permeability fluctuations, omega. [References: 8]
机译：该文探讨了渗透率变化对传热的影响，以及通过无限多孔扁平多孔板以恒定吸力为边界的高度多孔介质的流动的影响。多孔介质的渗透性在空间和时间上均变化。由于渗透率在横向方向上的周期性变化，问题变成了三维。通过采用复杂的变量符号来求解控制方程，并获得速度和温度场的表达式。最后讨论了壁面剪应力和传热速率。结果表明，在主，横向摩擦分量中，sk的振幅 L ， M ， H 以及传热速率均随着多孔介质渗透率的增加而减小。中等，K-0，或渗透率波动的频率，Ω。 [参考：8]

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