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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >Heat Transfer in a Three-Dimensional Flow through a Porous Medium with Periodic Permeability
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Heat Transfer in a Three-Dimensional Flow through a Porous Medium with Periodic Permeability

机译：三维流动通过周期性渗透的多孔介质中的热传递

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摘要

The effect of permeability variation on the heat transfer and the flow through a highly porous medium bounded by an infinite flat porous surface with constant suction is investigated. The problem becomes three-dimensional due to the transverse periodic variation of the permeability. For an asymptotic flow through a highly permeable medium the expressions for velocity, temperature, skin friction and the rate of heat transfer are obtained by using perturbation technique. The important characteristics of the problem, the skin friction factor and the rate of heat transfer factor are discussed in detail. It is found that with the increase of the permeability of the medium both the skin friction and the rate of heat transfer factors decrease significantly.
机译：研究了渗透率变化对传热和通过无限吸力的无限平坦多孔表面为边界的高度多孔介质的流动的影响。由于渗透率的横向周期性变化，问题变成了三维。对于通过高渗透性介质的渐近流动，通过使用扰动技术获得了速度，温度，皮肤摩擦和热传递速率的表达式。详细讨论了该问题的重要特征，皮肤摩擦系数和热传递系数。发现随着介质渗透率的增加，皮肤摩擦和传热因子的速率均显着降低。

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