用有限单元法评价区域地下水资源

Appraising the resources of areal ground water with the finite element technique

有限单元法比较全面的考虑地下水的垂向、侧向的补给量及排泄量、不同边界条件、布井方式、开采过程、开采时间、含水层分布的情况等。 用该方法评价白城地区43.105平方公里地下水资源,并予报未来五年(1985)、十年(1990)、二十年(2000)地下水位。建立的数字模型,用“6912”型电子计算机,予报一定开采量相对应的地下水位。为今后管理地下水资源打下基础。

This paper describes and documents a computer model for appraising resources of ground water. The computer program solves partial differential equation. The model can be applied to both steady-state and transient flow problems.This model can be applied to a wide variety of field problems. However, the the user should first become aware of the assumptions and limitations inherent in the model, as described in this paper. The computer program presented in this paper is offered as a basic working tool that may have to be modified by the user for the efficient application to specitic field problems. The program is written in BD-200 and is compatible with most high-speed computers. The data requirements, input format specifications, program options, and output are all structured in a general manner that should be readily adaptable lo many field problems.