【摘要】 本文建立了矩形封闭腔内非饱和多孔介质的二维传热传质数理模型，并对Ｒ１１３的蒸发相交进行了数值模拟。根据计算结果着重讨论了流体瑞利数Ｒａ，介质达西数Ｄａ以及腔体冷热端温差△Ｔ的变化对其传热传质特性的影响，得出一些有用的可指导工程实践的结论。更多还原

【Abstract】 A 2D heat and mass transfer mathematic model in enclosure rectangle packed with porous media is established. To be further, the numerical simulation is carried out. According to concerned analysis based on the calculated result, the effects on the heat and mass transfer characteristics caused by the change of the Raleigh number, the Darcy number, the temperature deference between the hot and the cold wall of the enclosure is emphatically discussed.更多还原