冻土区埋地输油管道周围土壤温度场数值模拟

Numerical Simulation for Soil Temperature Field of Oil Pipeline in Ground Freezing

在建立埋地输油管道周围土壤温度场的物理模型时,大多数人认为温度分布是关于管道中心对称的,因此只考虑对称的一侧,且都为二维计算,简化了很多方面,这是不精确的。结合横向、纵向建立了三维运算模型,使土壤温度场的模拟更接近现实,所以模拟的结果将会更加精确,对现实生产也具有指导意义。

On the establishment of oil pipeline buried in soil temperature field around the physical model,the majority view that the temperature distribution is symmetrical on the pipe center,so only the side of symmetric,and for two-dimensional calculations of a number of simplified context,such a consideration is inaccurate.In this paper,from horizontal and vertical aspect,a three-dimensional computing model was established to make the soil temperature field closer to the reality of the simulation.Thus,the simulation results will be more precise and the production of reality is also instructive.