摘要
作者给出了一种求解承压非稳定井流方程的ＬＴ有限分析法．其特点是：将时间ｔ直接包含在有限分析数值计算格式中，克服了传统数值法求解非稳定过程按时段迭代的缺陷，实现了非稳定过程计算的一步完成，给多时段地下水资源管理和长期预报带来了方便．用本文提出的方法分别计算了两个算例，结果表明，该方法具有较高的精度，与解析解吻合甚好，可用于实际地下水流的计算之中．
T finite analytic method, which can be used for simulating groundwater unsteady flow to wed system in a confined aquifer, is described in this paper. Because time (t) is included in the finite analytic scheme, the shortcomings of iteration related to time step (△t) in traditional numerical methods are overcome. We can perform the calculation of the unsteady process by using one step instead of iteration related to m. This will make groundwater resource management and long period prediction convenient. The scheme is used to solve two typical problems. The results of the method proposed in this paper have high accury, agree with analytic solutions very well. It means that the method proposed in this paper can put into practical use.
出处
《西北地质科学》
1995年第2期65-72,共8页
Northwest Geoscience
关键词
有限分析法
承压水
地下水
非稳定流动
finite analytic method confined aquifer unsteady flow well numerical solution Laplace transform
