地下水渗流对地埋管周围土壤影响的模拟研究

摘要

文章利用商业建模软件GAMBIT和FLURNT对垂直地埋管换热器与周围土壤换热进行了数值模拟，区别于以往的纯导热模型，文章基于饱和多孔介质和地下水流动理论，建立垂直地埋管换热器三维模型，模拟地下水渗流对垂直地埋管换热器周围土壤换热的影响。主要通过三维垂直单U型地埋管换热器的热渗耦合模型，研究在地下水渗流条件下，对周围土壤的影响。%The heat transfer between vertically buried pipe exchanger and soil surrounding is numerically simulated by business modeling software GAMBIT and FLURNT. Differing from the previous model with pure heat conduction,in this paper, the 3-D heat transfer model of buried pipe exchanger is established based on the theory of saturated porous media and groundwater flow ,to research the influence of groundwater seepage on the heat ex-change between vertically buried pipe and soil surrounding. The influence of groundwater seepage on the soil sur-rounding is studied mainly through the heat seepage coupled model of three-dimensional single U-shaped pipe which is vertically buried underground.