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本文通过对考虑流速垂直分量和弹性释水的Neuman潜水完整井流模型解析解的数值分析,给出了模型的数值计算过程,并结合加速遗传算法(AGA)获取了潜水含水层系统参数,通过应用实例表明,可以取得很好的参数估算效果,并且对比传统配线法可知:所得结果与配线法结果近似一致;利用参数计算的降深与实测降深的拟合优于配线法;不必分抽水初期、末期分别拟合,避免了配线法初期和末期导水系数不一致的问题;实现了利用Neuman潜水流模型获得参数的自动优选,简化了参数估计过程。
In this paper, we numerically analyze the analytical solution of Neuman’s complete well flow model considering the vertical component of flow velocity and the elastic release water. The numerical calculation of the model is given. The system parameters of the aquifer are obtained by using accelerated genetic algorithm (AGA) The application example shows that the effect of parameter estimation can be obtained well. Compared with the traditional wiring method, the obtained result is approximately the same as that of the wiring method. The fitting of the calculated depth and the measured depth is better than the wiring method. It is unnecessary to separate the initial and final stages respectively, which avoids the inconsistency of the hydraulic conductivity between the initial and the end of the wiring method. The automatic optimization of the parameters obtained by the Neuman submersible flow model is achieved and the parameter estimation process is simplified.