论文部分内容阅读
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。
In this paper, a two-dimensional heat and mass transfer mathematical model of unsaturated porous media in a rectangular closed cavity was established, and the evaporation intersection of R113 was numerically simulated. According to the calculation results, the influences of the Rayleigh number Ra, the dielectric Darcy number Da and the temperature difference △ T between the hot and cold sides of the fluid on the heat and mass transfer characteristics are discussed emphatically. Some useful conclusions can be drawn from the engineering practice.