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| 基于模式搜索算法的Van Genuchten方程参数优化 | |
| 引用本文： | 王玉强,王英华,张宽地.基于模式搜索算法的Van Genuchten方程参数优化[J].中国农村水利水电,2010(9). |
| 作者姓名： | 王玉强 王英华 张宽地 |
| 作者单位： | 1. 浙江大学建工学院,杭州,310027;浙江水利水电专科学校,杭州,310018 2. 浙江水利水电专科学校,杭州,310018 3. 西北农林科技大学,陕西,杨凌,712100 |
| 基金项目： | 中科院黄土高原土壤侵蚀与旱地农业国家重点实验室开放基金项目(10501-141); 浙江省水利厅基金项目(RC0825); 西北农林科技大学青年重点基金项目(080807) |
| 摘 要： | 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。 |
| 关 键 词： | 模式搜索算法 Van Genuchten方程 参数优化 |
The Parametric Optimization of Van Genuchten Equation Based on Pattern Search Algorithm |
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| WANG Yu-qiang , WANG Ying-hua , ZHANG Kuan-di.The Parametric Optimization of Van Genuchten Equation Based on Pattern Search Algorithm[J].China Rural Water and Hydropower,2010(9). | |
| Authors: | WANG Yu-qiang WANG Ying-hua ZHANG Kuan-di |
| Institution: | WANG Yu-qiang1,2,WANG Ying-hua2,ZHANG Kuan-di3(1.College of Civil Engineering,Zhejiang University,Hangzhou 310027,China,2.Zhejiang Water Conservancy and Hydropower College,Hangzhou 310018,3.College of Water Conservancy and Architectural Engineering,Northwest Agricultural and Forestry University,Yangling 712100,Shaanxi Province,China) |
| Abstract: | There are many deficiencies for the parameter optimization of Van Genuchten Equation nowadays.According to a theoretic analysis,this paper gets the result of the monotonic function based on Van Genuchten,which means unipolar values function.And we can identify Van Genuchten Equation parameter by using pattern search algorithm which is good for partial search.The illustrative examples and tolerance analysis show that pattern search algorithm for getting Van Genuchten is easy,fast,flexible and accurate.It pro... |
| Keywords: | pattern search algorithm Van Genuchten Equation parameter optimization |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |