论文部分内容阅读
针对目前Van Genuchten方程参数优化方法的不足,本文通过理论分析得出Van Genuchten方程参数的单调函数,即为单极值函数。因此,可使用局部搜索能力较强的模式搜索算法识别Van Genuchten方程参数。算例及误差分析表明:模式搜索算法求解Van Genuchten方程参数算法实现简单、运算速度快、适用性强、计算精度高,为Van Genu-chten方程参数的求解提供了一条新途径。
In order to overcome the shortcomings of the existing parameter optimization methods of Van Genuchten equation, we obtain the monotonic function of Van Genuchten equation parameters through theoretical analysis, which is the unipolar value function. Therefore, the model search algorithm with strong local search can be used to identify the parameters of Van Genuchten equation. The results of numerical examples and error analysis show that the algorithm of pattern search algorithm for solving Van Genuchten equation parameters is simple, fast, convenient, and highly accurate. It provides a new way to solve the parameters of Van Genuchten equation.