摘要
本文用分段法求解多阶段地下水管理模型。地下水偏微分方程用有限差分和有限元法进行近似离散,形成结点的地下水流代数方程组,并插入优化模型中作为等式约束条件。采用分段法计算,并与集中瞬时法进行对照。文中分析了两种计算方法的特点以及多阶段地下水开发和管理模型的实际应用。
Solution procedures for the multi-Period ground-water management model use of the stepwise approach was studied in this paper. A ground-water management model was developed by using finite-difference and finite element approximations to the partial differential equation governing groundwater flow in a confined aquifer. The resulting system of simultaneous equations was embedded in an optimization model as equality constraints for aquifer manaqement. The stepwise approach should be used for solving the simulation-optimization ground-water management model and was compared with the lumped transient approach. The examples were used to explore some computational aspects of the stepwise and lumped transient approach. The stepwise approach was emploged for managing the situations of both the hypothetical example and the real world problems.
基金
水利水电科学基金
关键词
地下水
开发
管理
模型
优化
ground-■ esources
optimization methods
computational method
