数值模拟在沈阳市地下水源热泵研究中的应用

Application of Numerical Simulation Model in the Study of Groundwater Source Heat Pump in Shenyang

以沈阳城区为例,通过对研究区水文地质条件概化,建立符合沈阳城区地下水源热泵采能区的水热耦合数学模型。探讨符合研究区水文地质状况的水流参数与热物理参数,确定符合沈阳市区水源热泵系统运行的边界条件,基于限差分法求解地下水流模型。介绍Visual MODFLOW软件在水源热泵系统研究中的应用,提出利用相应软件包求解数学模型的方法,为地下水源热泵系统的合理布局提供有效的数值理论求解方法。

A coupled heat-groundwater transport model is established, taking Shenyang urban area as an example and in consideration of the hydrogeological condition in the study area, which conforms with the area energy collection with the heat-groundwater pump system. This paper has established the water parameter and heat-physical parameter which is consistent with the hydrogeological condition in Shenyang, and established the boundary condition which fit the common running of the heat-groundwater pump system. The subsurface flow model is obtained with limited difference method. The application of Visual MODFLOW software used in the heat-groundwater pump system is presented. The use of corresponding software packages in establishing mathematical models are explained so as to pro- vide effective solving methods in numerical simulation theory for a rational distribution of heat-groundwater pump system.