Development of a numerical model for fluid flow and heat transport through permeable porous media for shallow geothermal utilization

为了发展浅层地热能源利用技术，需要一种能够估计非饱和和高渗透多孔介质中流体流动和热输运过程的数值模拟模型。本文采用一维柱体进行了入渗试验，建立了数值模拟模型。结果表明，该模型采用多相系统模拟了可渗透多孔介质中的高速流动。此外，该模型能够单独模拟土壤、液体（水）和空气的温度，计算结果与实验结果吻合较好。

A numerical simulation model for being able to estimate processes of fluid flow and thermal transport in unsaturated and high permeable porous media is required in order to develop the technique of shallow geothermal energy utilization. In this study, the infiltration experiments using 1 dimensional column and developing the numerical simulation model were carried out. As the results, the high-velocity flow in the permeable porous media was simulated by the model using multi-phases system. In addition, in the model the temperature of soil, liquid (water) and air were able to be simulated individually and the calculated results were agreement with the experimental results.